Most of the given examples assume that for the test range [$a..$b], $a <= $b, i.e. the range extremes are in lower - higher order and most assume that all are integer numbers.
But I needed a function to test if $n was between $a and $b, as described here:

Check if $n is between $a and $b even if:
    $a < $b  
    $a > $b
    $a = $b

All numbers can be real, not only integer.

There is an easy way to test.
I base the test it in the fact that ($n-$a) and ($n-$b) have different signs when $n is between $a and $b, and the same sign when $n is outside the $a..$b range.
This function is valid for testing increasing, decreasing, positive and negative numbers, not limited to test only integer numbers.

function between($n, $a, $b)
{
    return (($a==$n)&&($b==$n))? true : ($n-$a)*($n-$b)<0;
}

Declare it as a decimal which uses the int variable and divide this by 100

int number = 700
decimal correctNumber = (decimal)number / 100;

Edit: Bala was faster with his reaction

boolean b = ....; 
int i = -("false".indexOf("" + b));

$ranges = [
    1 => [
        'min_range' => 0.01,
        'max_range' => 199.99
    ],
    2 => [
        'min_range' => 200.00,
    ],
];

   foreach( $ranges as $value => $range ){
        if( filter_var( $cartTotal, FILTER_VALIDATE_FLOAT, [ 'options' => $range ] ) ){
            return $value;
        }
    }

If you are sure that you have "real" number in your string, or you are comfortable of any exception that might arise, use this.

string s="4";
int a=int.Parse(s);

For some more control over the process, use

string s="maybe 4";
int a;
if (int.TryParse(s, out a)) {
    // it's int;
}
else {
    // it's no int, and there's no exception;
}

  newlist=[]                       #make an empty list
  for i in list:                   # loop to hv a dict in list  
     s={}                          # make an empty dict to store new dict data 
     for k in i.keys():            # to get keys in the dict of the list 
         s[k]=int(i[k])        # change the values from string to int by int func
     newlist.append(s)             # to add the new dict with integer to the list

In [16]: df = DataFrame(np.arange(10).reshape(5,2),columns=list('AB'))

In [17]: df
Out[17]: 
   A  B
0  0  1
1  2  3
2  4  5
3  6  7
4  8  9

In [18]: df.dtypes
Out[18]: 
A    int64
B    int64
dtype: object

Convert a series

In [19]: df['A'].apply(str)
Out[19]: 
0    0
1    2
2    4
3    6
4    8
Name: A, dtype: object

In [20]: df['A'].apply(str)[0]
Out[20]: '0'

Don't forget to assign the result back:

df['A'] = df['A'].apply(str)

Convert the whole frame

In [21]: df.applymap(str)
Out[21]: 
   A  B
0  0  1
1  2  3
2  4  5
3  6  7
4  8  9

In [22]: df.applymap(str).iloc[0,0]
Out[22]: '0'

df = df.applymap(str)

You're trying to concatenate a string and an integer, which is incorrect.

Change print(numlist.pop(2)+" has been removed") to any of these:

Explicit int to str conversion:

print(str(numlist.pop(2)) + " has been removed")

Use , instead of +:

print(numlist.pop(2), "has been removed")

String formatting:

print("{} has been removed".format(numlist.pop(2)))

For all practical purposes, and with no import at all, one can use:

x = float("inf")

More detail on this related question: How can I represent an infinite number in Python?

Array Sorting without using built in functions in java ......just make new File unsing this name -> (ArraySorting.java) ..... Run the Project and Enjoy it !!!!!

    import java.io.*;
    import java.util.Arrays;
    import java.util.Scanner;
    public class ArraySorting 
    {
    public static void main(String args[])
    {
      int temp=0;   
      Scanner user_input=new Scanner(System.in);
       System.out.println("enter Size of Array...");
    int Size=user_input.nextInt();

    int[] a=new int[Size];
    System.out.println("Enter element Of an Array...");
    for(int j=0;j<Size;j++)
    {
        a[j]=user_input.nextInt();
    }     
    for(int index=0;index<a.length;index++)
    {
        for(int j=index+1;j<a.length;j++)
        {
             if(a[index] > a[j] ) 
             {
                 temp = a[index];
                 a[index] = a[j];
                 a[j] = temp;
             }
        }
    }
    System.out.print("Output is:- ");
    for(int i=0;i<a.length;i++)
    {
        System.out.println(a[i]);
    }

}
}

To go into why size_t needed to exist and how we got here:

In pragmatic terms, size_t and ptrdiff_t are guaranteed to be 64 bits wide on a 64-bit implementation, 32 bits wide on a 32-bit implementation, and so on. They could not force any existing type to mean that, on every compiler, without breaking legacy code.

A size_t or ptrdiff_t is not necessarily the same as an intptr_t or uintptr_t. They were different on certain architectures that were still in use when size_t and ptrdiff_t were added to the Standard in the late ’80s, and becoming obsolete when C99 added many new types but not gone yet (such as 16-bit Windows). The x86 in 16-bit protected mode had a segmented memory where the largest possible array or structure could be only 65,536 bytes in size, but a far pointer needed to be 32 bits wide, wider than the registers. On those, intptr_t would have been 32 bits wide but size_t and ptrdiff_t could be 16 bits wide and fit in a register. And who knew what kind of operating system might be written in the future? In theory, the i386 architecture offers a 32-bit segmentation model with 48-bit pointers that no operating system has ever actually used.

The type of a memory offset could not be long because far too much legacy code assumes that long is exactly 32 bits wide. This assumption was even built into the UNIX and Windows APIs. Unfortunately, a lot of other legacy code also assumed that a long is wide enough to hold a pointer, a file offset, the number of seconds that have elapsed since 1970, and so on. POSIX now provides a standardized way to force the latter assumption to be true instead of the former, but neither is a portable assumption to make.

It couldn’t be int because only a tiny handful of compilers in the ’90s made int 64 bits wide. Then they really got weird by keeping long 32 bits wide. The next revision of the Standard declared it illegal for int to be wider than long, but int is still 32 bits wide on most 64-bit systems.

It couldn’t be long long int, which anyway was added later, since that was created to be at least 64 bits wide even on 32-bit systems.

So, a new type was needed. Even if it weren’t, all those other types meant something other than an offset within an array or object. And if there was one lesson from the fiasco of 32-to-64-bit migration, it was to be specific about what properties a type needed to have, and not use one that meant different things in different programs.

As an alternative approach to trying to parse the string and catching NumberFormatException, you could use a regex; e.g.

if (Pattern.compile("-?[0-9]+").matches(str)) {
    // its an integer
}

This is likely to be faster, especially if you precompile and reuse the regex.

However, the problem with this approach is that Integer.parseInt(str) will also fail if str represents a number that is outside range of legal int values. While it is possible to craft a regex that only matches integers in the range Integer.MIN_INT to Integer.MAX_INT, it is not a pretty sight. (And I am not going to try it ...)

On the other hand ... it may be acceptable to treat "not an integer" and "integer too large" separately for validation purposes.

Swift 4* and above you can try this also:

func leftPadding(valueString: String, toLength: Int, withPad: String = " ") -> String {
        guard toLength > valueString.count else { return valueString }
        
        let padding = String(repeating: withPad, count: toLength - valueString.count)
        return padding + valueString
    }

call the function:

leftPadding(valueString: "12", toLength: 5, withPad: "0")

Output: "00012"

Good guestion! -- where I have not yet found a satisfying answer for my case, the answer I provide here works for me, but may not be future proof...

If one uses gcc (clang?) and have -Werror and -Wbad-function-cast defined,

int val = (int)pow(10,9);

will result:

error: cast from function call of type 'double' to non-matching type 'int' [-Werror=bad-function-cast]

(for a good reason, overflow and where values are rounded needs to be thought out)

EDIT: 2020-08-30: So, my use case casting the value from function returning double to int, and chose pow() to represent that in place of a private function somewhere. Then I sidestepped thinking pow() more. (See comments more why pow() used below could be problematic...).

After properly thought out (that parameters to pow() are good), int val = pow(10,9); seems to work with gcc 9.2 x86-64 ...

but note:

printf("%d\n", pow(10,4));

may output e.g.

-1121380856

(did for me) where

int i = pow(10,4); printf("%d\n", i);

printed

10000

in one particular case I tried.

Math.round() returns the nearest integer to your given input value. If your float already has an integer value the "nearest" integer will be that same value, so all you need to do is check whether Math.round() changes the value or not:

if (value == Math.round(value)) {
  System.out.println("Integer");
} else {
  System.out.println("Not an integer");
}

If you just need to convert an expected 8-bit value from a signed int to an unsigned value, you can use simple bit shifting:

int signed = -119;  // 11111111 11111111 11111111 10001001

/**
 * Use unsigned right shift operator to drop unset bits in positions 8-31
 */
int psuedoUnsigned = (signed << 24) >>> 24;  // 00000000 00000000 00000000 10001001 -> 137 base 10

/** 
 * Convert back to signed by using the sign-extension properties of the right shift operator
 */
int backToSigned = (psuedoUnsigned << 24) >> 24; // back to original bit pattern

http://docs.oracle.com/javase/tutorial/java/nutsandbolts/op3.html

If using something other than int as the base type, you'll obviously need to adjust the shift amount: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

Also, bear in mind that you can't use byte type, doing so will result in a signed value as mentioned by other answerers. The smallest primitive type you could use to represent an 8-bit unsigned value would be a short.

Could this class from this forum post help you?

public class BaseConverter { 

public static string ToBase(string number, int start_base, int target_base) { 

  int base10 = this.ToBase10(number, start_base); 
  string rtn = this.FromBase10(base10, target_base); 
  return rtn; 

} 

public static int ToBase10(string number, int start_base) { 

  if (start_base < 2 || start_base > 36) return 0; 
  if (start_base == 10) return Convert.ToInt32(number); 

  char[] chrs = number.ToCharArray(); 
  int m = chrs.Length - 1; 
  int n = start_base; 
  int x; 
  int rtn = 0; 

  foreach(char c in chrs) { 

    if (char.IsNumber(c)) 
      x = int.Parse(c.ToString()); 
    else 
      x = Convert.ToInt32(c) - 55; 

    rtn += x * (Convert.ToInt32(Math.Pow(n, m))); 

    m--; 

  } 

  return rtn; 

} 

public static string FromBase10(int number, int target_base) { 

  if (target_base < 2 || target_base > 36) return ""; 
  if (target_base == 10) return number.ToString(); 

  int n = target_base; 
  int q = number; 
  int r; 
  string rtn = ""; 

  while (q >= n) { 

    r = q % n; 
    q = q / n; 

    if (r < 10) 
      rtn = r.ToString() + rtn; 
    else 
      rtn = Convert.ToChar(r + 55).ToString() + rtn; 

  } 

  if (q < 10) 
    rtn = q.ToString() + rtn; 
  else 
    rtn = Convert.ToChar(q + 55).ToString() + rtn; 

  return rtn; 

} 

}

Totally untested... let me know if it works! (Copy-pasted it in case the forum post goes away or something...)

Some handy quick functions (if you're not using Boost):

template<typename T>
std::string ToString(const T& v)
{
    std::ostringstream ss;
    ss << v;
    return ss.str();
}

template<typename T>
T FromString(const std::string& str)
{
    std::istringstream ss(str);
    T ret;
    ss >> ret;
    return ret;
}

Example:

int i = FromString<int>(s);
std::string str = ToString(i);

Works for any streamable types (floats etc). You'll need to #include <sstream> and possibly also #include <string>.

You are doing Integer division, so you will lose the correct length if the user happens to put in an odd number of inputs - that is one problem I noticed. Because of this, when I run the code with an input of '1,2,3,4,5,6,7' my last value is ignored...

Excerpt from K&R:

short is often 16 bits, long 32 bits and int either 16 bits or 32 bits. Each compiler is free to choose appropriate sizes for its own hardware, subject only to the restriction that shorts and ints are at least 16 bits, longs are at least 32 bits, and short is no longer than int, which is no longer than long.

You can make use of limits.h that contains the definition of the limits for the decimal/float types:

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <float.h>


int main(int argc, char** argv) {

    printf("CHAR_BIT    :   %d\n", CHAR_BIT);
    printf("CHAR_MAX    :   %d\n", CHAR_MAX);
    printf("CHAR_MIN    :   %d\n", CHAR_MIN);
    printf("INT_MAX     :   %d\n", INT_MAX);
    printf("INT_MIN     :   %d\n", INT_MIN);
    printf("LONG_MAX    :   %ld\n", (long) LONG_MAX);
    printf("LONG_MIN    :   %ld\n", (long) LONG_MIN);
    printf("SCHAR_MAX   :   %d\n", SCHAR_MAX);
    printf("SCHAR_MIN   :   %d\n", SCHAR_MIN);
    printf("SHRT_MAX    :   %d\n", SHRT_MAX);
    printf("SHRT_MIN    :   %d\n", SHRT_MIN);
    printf("UCHAR_MAX   :   %d\n", UCHAR_MAX);
    printf("UINT_MAX    :   %u\n", (unsigned int) UINT_MAX);
    printf("ULONG_MAX   :   %lu\n", (unsigned long) ULONG_MAX);
    printf("USHRT_MAX   :   %d\n", (unsigned short) USHRT_MAX);
    printf("FLT_MAX     :   %g\n", (float) FLT_MAX);
    printf("FLT_MIN     :   %g\n", (float) FLT_MIN);
    printf("-FLT_MAX    :   %g\n", (float) -FLT_MAX);
    printf("-FLT_MIN    :   %g\n", (float) -FLT_MIN);
    printf("DBL_MAX     :   %g\n", (double) DBL_MAX);
    printf("DBL_MIN     :   %g\n", (double) DBL_MIN);
    printf("-DBL_MAX     :  %g\n", (double) -DBL_MAX);

    return (EXIT_SUCCESS);
}

Maybe you might have to tweak a little bit on your machine, but it is a good template to start to get an idea of the (implementation-defined) min and max values.

In swift 3.0, you may change integer to string as given below

let a:String = String(stringInterpolationSegment: 15)

Another way is

let number: Int = 15
let _numberInStringFormate: String = String(number)

//or any integer number in place of 15

cout << text << " " << i << endl;

You can do this with...

1. mysql_fetch_field()
2. mysqli_result::fetch_field_direct or
3. PDOStatement::getColumnMeta()

...depending on the extension you want to use. The first is not recommended because the mysql extension is deprecated. The third is still experimental.

The comments at these hyperlinks do a good job of explaining how to set your type from a plain old string to its original type in the database.

Some frameworks also abstract this (CodeIgniter provides $this->db->field_data()).

You could also do guesswork--like looping through your resulting rows and using is_numeric() on each. Something like:

foreach($result as &$row){
 foreach($row as &$value){
  if(is_numeric($value)){
   $value = (int) $value;
  }       
 }       
}

This would turn anything that looks like a number into one...definitely not perfect.

Just have a look on my solution,^[1] that I verbatim copied from my project, so there a German is API doc included. My goal was to combine flexibility and safety within my actual needs:^[2]

• no 0x prefix added: caller may decide
• automatic width deduction: less typing
• explicit width control: widening for formatting, (lossless) shrinking to save space
• capable for dealing with long long
• restricted to integral types: avoid surprises by silent conversions
• ease of understanding
• no hard-coded limit

#include <string>
#include <sstream>
#include <iomanip>

/// Vertextet einen Ganzzahlwert val im Hexadezimalformat.
/// Auf die Minimal-Breite width wird mit führenden Nullen aufgefüllt;
/// falls nicht angegeben, wird diese Breite aus dem Typ des Arguments
/// abgeleitet. Funktion geeignet von char bis long long.
/// Zeiger, Fließkommazahlen u.ä. werden nicht unterstützt, ihre
/// Übergabe führt zu einem (beabsichtigten!) Compilerfehler.
/// Grundlagen aus: http://stackoverflow.com/a/5100745/2932052
template <typename T>
inline std::string int_to_hex(T val, size_t width=sizeof(T)*2)
{
    std::stringstream ss;
    ss << std::setfill('0') << std::setw(width) << std::hex << (val|0);
    return ss.str();
}

^[1] based on the answer by Kornel Kisielewicz
^[2] Translated into the language of CppTest, this is how it reads:

TEST_ASSERT(int_to_hex(char(0x12)) == "12");
TEST_ASSERT(int_to_hex(short(0x1234)) == "1234");
TEST_ASSERT(int_to_hex(long(0x12345678)) == "12345678");
TEST_ASSERT(int_to_hex((long long)(0x123456789abcdef0)) == "123456789abcdef0");
TEST_ASSERT(int_to_hex(0x123, 1) == "123");
TEST_ASSERT(int_to_hex(0x123, 8) == "00000123");
// with deduction test as suggested by Lightness Races in Orbit:
TEST_ASSERT(int_to_hex(short(0x12)) == "0012"); 

std::vector<unsigned char> intToBytes(int value)
{
    std::vector<unsigned char> result;
    result.push_back(value >> 24);
    result.push_back(value >> 16);
    result.push_back(value >>  8);
    result.push_back(value      );
    return result;
}

int is a primitive data type while Integer is a Reference or Wrapper Type (Class) in Java.

after java 1.5 which introduce the concept of autoboxing and unboxing you can initialize both int or Integer like this.

int a= 9
Integer a = 9 // both valid After Java 1.5.

why Integer.parseInt("1"); but not int.parseInt("1"); ??

Integer is a Class defined in jdk library and parseInt() is a static method belongs to Integer Class

So, Integer.parseInt("1"); is possible in java. but int is primitive type (assume like a keyword) in java. So, you can't call parseInt() with int.

Just do (int)myLongValue. It'll do exactly what you want (discarding MSBs and taking LSBs) in unchecked context (which is the compiler default). It'll throw OverflowException in checked context if the value doesn't fit in an int:

int myIntValue = unchecked((int)myLongValue);

As your methods an int datatype, you should use "==" instead of equals()

try replacing this if (id.equals(list[pos].getItemNumber()))

with

if (id.equals==list[pos].getItemNumber())

it will fix the error .

You can use static methods from Character class to get Numeric value from char.

char x = '9';

if (Character.isDigit(x)) { // Determines if the specified character is a digit.
    int y = Character.getNumericValue(x); //Returns the int value that the 
                                          //specified Unicode character represents.
    System.out.println(y);
}

I prefer a short way using a nullable enum type variable.

var enumValue = (MyEnum?)enumInt;

if (!enumValue.HasValue)
{
    throw new ArgumentException(nameof(enumValue));
}

You really need to post a more complete example, so we can see what you're trying to do. From what you have posted, here's what I can see. First, there is no built-in round() method. You need to either call Math.round(n), or statically import Math.round, and then call it like you have.

I'm very sorry for necro-threading but I wanted to provide a solution without converting the integer to a string. Also I wanted to work with more computer-like thinking so that's why the answer from Chris Mueller wasn't good enough for me.

So without further ado,

import math

def count_number(number):
    counter = 0
    counter_number = number
    while counter_number > 0:
        counter_number //= 10
        counter += 1
    return counter


def digit_selector(number, selected_digit, total):
    total_counter = total
    calculated_select = total_counter - selected_digit
    number_selected = int(number / math.pow(10, calculated_select))
    while number_selected > 10:
        number_selected -= 10
    return number_selected


def main():
    x = 1548731588
    total_digits = count_number(x)
    digit_2 = digit_selector(x, 2, total_digits)
    return print(digit_2)


if __name__ == '__main__':
    main()

which will print:

5

Hopefully someone else might need this specific kind of code. Would love to have feedback on this aswell!

This should find any digit in a integer.

Flaws:

Works pretty ok but if you use this for long numbers then it'll take more and more time. I think that it would be possible to see if there are multiple thousands etc and then substract those from number_selected but that's maybe for another time ;)

Usage:

You need every line from 1-21. Then you can call first count_number to make it count your integer.

x = 1548731588
total_digits = count_number(x)

Then read/use the digit_selector function as follows:

digit_selector('insert your integer here', 'which digit do you want to have? (starting from the most left digit as 1)', 'How many digits are there in total?')

If we have 1234567890, and we need 4 selected, that is the 4th digit counting from left so we type '4'.

We know how many digits there are due to using total_digits. So that's pretty easy.

Hope that explains everything!

Han

PS: Special thanks for CodeVsColor for providing the count_number function. I used this link: https://www.codevscolor.com/count-number-digits-number-python to help me make the digit_selector work.

If you want to print/write double value at console then use System.out.printf() or System.out.format() methods.

System.out.printf("\n$%10.2f",shippingCost);
System.out.printf("%n$%.2f",shippingCost);

• All as varchar (they aren't numbers but "collections of digits")
• Country + area + number separately
• Not all countries have area code (eg Malta where I am)
• Some countries drop the leading zero from the area code when dialling internal (eg UK)
• Format in the client code

 int stringToInt(std::string value) {    
 if(value.length() == 0 ) return 0; //tu zmiana..

 if (value.find(  std::string("NULL") ) != std::string::npos) {
     return 0;
  }
 
  if (value.find(  std::string("null") ) != std::string::npos) {
     return 0;
  }
 
 
int i;
std::stringstream stream1;
stream1.clear();
stream1.str(value);
stream1 >> i;
return i;

};

As a suggestion, you also can use the QChar::digitValue() to obtain the numeric value of the digit. For example:

for (int var = 0; var < myString.length(); ++var) {
    bool ok;
    if (myString.at(var).isDigit()){
        int digit = myString.at(var).digitValue();
        //DO SOMETHING HERE WITH THE DIGIT
    }
}

Source: Converting one element from a QString to int

Maybe I missed it, but has anyone tried a simple generic extension method?

This works great for me. You can avoid the type cast in your API this way but ultimately it results in a change type operation. This is a good case for programming Roslyn to have the compiler make a GetValue<T> method for you.

    public static void Main()
    {
        int test = MyCSharpWrapperMethod(TestEnum.Test1);

        Debug.Assert(test == 1);
    }

    public static int MyCSharpWrapperMethod(TestEnum customFlag)
    {
        return MyCPlusPlusMethod(customFlag.GetValue<int>());
    }

    public static int MyCPlusPlusMethod(int customFlag)
    {
        // Pretend you made a PInvoke or COM+ call to C++ method that require an integer
        return customFlag;
    }

    public enum TestEnum
    {
        Test1 = 1,
        Test2 = 2,
        Test3 = 3
    }
}

public static class EnumExtensions
{
    public static T GetValue<T>(this Enum enumeration)
    {
        T result = default(T);

        try
        {
            result = (T)Convert.ChangeType(enumeration, typeof(T));
        }
        catch (Exception ex)
        {
            Debug.Assert(false);
            Debug.WriteLine(ex);
        }

        return result;
    }
}

barcode often consist of large number so i think your app crashes because of the size of the string that you are trying to convert to int. you can use BigInteger

BigInteger reallyBig = new BigInteger(myString);

For a normal string you can use:

int number = Integer.parseInt("1234");

For a String builder and String buffer you can use:

Integer.parseInt(myBuilderOrBuffer.toString());

An integer can't be null but there is a really simple way of doing what you want to do. Use an if-then statement in which you check the integer's value against all possible values.

Example:

int x;

// Some Code...

if (x <= 0 || x > 0){
    // What you want the code to do if x has a value
} else {
    // What you want the code to do if x has no value 
}

Disclaimer: I am assuming that Java does not automatically set values of numbers to 0 if it doesn't see a value.

Adding to jelovirt's answer, you can use number() to convert the value to a number, then round(), floor(), or ceiling() to get a whole integer.

Example

<xsl:variable name="MyValAsText" select="'5.14'"/>
<xsl:value-of select="number($MyValAsText) * 2"/> <!-- This outputs 10.28 -->
<xsl:value-of select="floor($MyValAsText)"/> <!-- outputs 5 -->
<xsl:value-of select="ceiling($MyValAsText)"/> <!-- outputs 6 -->
<xsl:value-of select="round($MyValAsText)"/> <!-- outputs 5 -->

This is to do with JavaScript's + in operator - if a number and a string are "added" up, the number is converted into a string:

0 + 1; //1
'0' + 1; // '01'

To solve this, use the + unary operator, or use parseInt():

+'0' + 1; // 1
parseInt('0', 10) + 1; // 1

The unary + operator converts it into a number (however if it's a decimal it will retain the decimal places), and parseInt() is self-explanatory (converts into number, ignoring decimal places).

The second argument is necessary for parseInt() to use the correct base when leading 0s are placed:

parseInt('010'); // 8 in older browsers, 10 in newer browsers
parseInt('010', 10); // always 10 no matter what

There's also parseFloat() if you need to convert decimals in strings to their numeric value - + can do that too but it behaves slightly differently: that's another story though.

Lists of bytes are subscriptable (at least in Python 3.6). This way you can retrieve the decimal value of each byte individually.

>>> intlist = [64, 4, 26, 163, 255]
>>> bytelist = bytes(intlist)       # b'@x04\x1a\xa3\xff'

>>> for b in bytelist:
...    print(b)                     # 64  4  26  163  255

>>> [b for b in bytelist]           # [64, 4, 26, 163, 255]

>>> bytelist[2]                     # 26 

There is no such thing as an int in Javascript. All Numbers are actually doubles behind the scenes* so you can't rely on the type system to issue a rounding order for you as you can in C or C#.

You don't need to worry about precision issues (since doubles correctly represent any integer up to 2^53) but you really are stuck with using Math.floor (or other equivalent tricks) if you want to round to the nearest integer.

*Most JS engines use native ints when they can but all in all JS numbers must still have double semantics.

Long story short you have to use atoi()

ed:

If you are interested in doing this the right way :

char szNos[] = "12345";
char *pNext;
long output;
output = strtol (szNos, &pNext, 10); // input, ptr to next char in szNos (null here), base 

It's not what the question asks but I used @Rich Drummond 's answer for a char array read in from stdin which is null terminated.

char *buff;
size_t buff_size = 100;
int choice;
do{
    buff = (char *)malloc(buff_size *sizeof(char));
    getline(&buff, &buff_size, stdin);
    choice = atoi(buff);
    free(buff);
                    
}while((choice<1)&&(choice>9));

Elegant because it doesn't require you to determine which of the two boundary values is greater first. It also contains no branches.

public static bool InRange(float val, float a, float b)
{
    // Determine if val lies between a and b without first asking which is larger (a or b)
    return ( a <= val & val < b ) | ( b <= val & val < a );
}

You can do pretty much the same as in JavaScript. Try this:

Console.WriteLine(mon + "." + da + "." + yer);

Or you can use WriteLine as if it were a string.Format statement by doing:

Console.WriteLine("{0}.{1}.{2}", mon, da, yer);

which is equivalent to:

string.Format("{0}.{1}.{2}", mon, da, yer);

The number of parameters can be infinite, just make sure you correctly index those numbers (starting at 0).

Use str_replace to remove the spaces first ?

Is the size of C “int” 2 bytes or 4 bytes?

The answer is "yes" / "no" / "maybe" / "maybe not".

The C programming language specifies the following: the smallest addressable unit, known by char and also called "byte", is exactly CHAR_BIT bits wide, where CHAR_BIT is at least 8.

So, one byte in C is not necessarily an octet, i.e. 8 bits. In the past one of the first platforms to run C code (and Unix) had 4-byte int - but in total int had 36 bits, because CHAR_BIT was 9!

int is supposed to be the natural integer size for the platform that has range of at least -32767 ... 32767. You can get the size of int in the platform bytes with sizeof(int); when you multiply this value by CHAR_BIT you will know how wide it is in bits.

While 36-bit machines are mostly dead, there are still platforms with non-8-bit bytes. Just yesterday there was a question about a Texas Instruments MCU with 16-bit bytes, that has a C99, C11-compliant compiler.

On TMS320C28x it seems that char, short and int are all 16 bits wide, and hence one byte. long int is 2 bytes and long long int is 4 bytes. The beauty of C is that one can still write an efficient program for a platform like this, and even do it in a portable manner!

Side note: if you want to get the sum of all digits, you can simply do

print sum(int(digit) for digit in raw_input('Enter a number:'))

You can use parseInt with try and catch block

try
{
    int myVal= Integer.parseInt(mTextView.getText().toString());
}
catch (NumberFormatException e)
{
    // handle the exception
    int myVal=0;
}

Or you can create your own tryParse method :

public Integer tryParse(Object obj) {
    Integer retVal;
    try {
        retVal = Integer.parseInt((String) obj);
    } catch (NumberFormatException nfe) {
        retVal = 0; // or null if that is your preference
    }
    return retVal;
}

and use it in your code like:

int myVal= tryParse(mTextView.getText().toString());

Note: The following code without try/catch will throw an exception

int myVal= new Integer(mTextView.getText().toString()).intValue();

Or

int myVal= Integer.decode(mTextView.getText().toString()).intValue();

I'm not 100% sure but when you cast f to an int, and subtract it from f, I believe it is getting cast back to a float. This probably won't matter in this case, but it could present problems down the line if you are expecting that to be an int for some reason.

I don't know if it's a better solution per se, but you could use modulus math instead, for example: float f = 4.5886; bool isInt; isInt = (f % 1.0 != 0) ? false : true; depending on your compiler you may or not need the .0 after the 1, again the whole implicit casts thing comes into play. In this code, the bool isInt should be true if the right of the decimal point is all zeroes, and false otherwise.

A very easy solution worked for me:

  if (62 % 50 != 0) {
      var number = 62 / 50 + 1 // adding 1 is doing the actual "round up"
  }

number contains value 2

While in your example, int(input(...)) does the trick in any case, python-future's builtins.input is worth consideration since that makes sure your code works for both Python 2 and 3 and disables Python2's default behaviour of input trying to be "clever" about the input data type (builtins.input basically just behaves like raw_input).

Use as.integer:

set.seed(1)
x <- runif(5, 0, 100)
x
[1] 26.55087 37.21239 57.28534 90.82078 20.16819


as.integer(x)
[1] 26 37 57 90 20

Test for class:

xx <- as.integer(x)
str(xx)
 int [1:5] 26 37 57 90 20

If an unsigned int and a (signed) int are used in the same expression, the signed int gets implicitly converted to unsigned. This is a rather dangerous feature of the C language, and one you therefore need to be aware of. It may or may not be the cause of your bug. If you want a more detailed answer, you'll have to post some code.

Use the C++ streams.

std::string       plop("123");
std::stringstream str(plop);
int x;

str >> x;

/* Lets not forget to error checking */
if (!str)
{
     // The conversion failed.
     // Need to do something here.
     // Maybe throw an exception
}

PS. This basic principle is how the boost library lexical_cast<> works.

My favorite method is the boost lexical_cast<>

#include <boost/lexical_cast.hpp>

int x = boost::lexical_cast<int>("123");

It provides a method to convert between a string and number formats and back again. Underneath it uses a string stream so anything that can be marshaled into a stream and then un-marshaled from a stream (Take a look at the >> and << operators).

I feel that the overall answer does not handle if the dates 'wrap' around a year. This would be useful in understanding proximity to a date being accurate by day of year. In order to do these row operations, I did the following. (I had this used in a business setting in renewing customer subscriptions).

def get_date_difference(row, x, y):
    try:
        # Calcuating the smallest date difference between the start and the close date
        # There's some tricky logic in here to calculate for determining date difference
        # the other way around (Dec -> Jan is 1 month rather than 11)

        sub_start_date = int(row[x].strftime('%j')) # day of year (1-366)
        close_date = int(row[y].strftime('%j')) # day of year (1-366)

        later_date_of_year = max(sub_start_date, close_date) 
        earlier_date_of_year = min(sub_start_date, close_date)
        days_diff = later_date_of_year - earlier_date_of_year

# Calculates the difference going across the next year (December -> Jan)
        days_diff_reversed = (365 - later_date_of_year) + earlier_date_of_year
        return min(days_diff, days_diff_reversed)

    except ValueError:
        return None

Then the function could be:

dfAC_Renew['date_difference'] = dfAC_Renew.apply(get_date_difference, x = 'customer_since_date', y = 'renewal_date', axis = 1)

Use round()

$float_val = 4.5;

echo round($float_val);

You can also set param for precision and rounding mode, for more info

Update (According to your updated question):

$float_val = 1.0000124668092E+14;
printf('%.0f', $float_val / 1E+14); //Output Rounds Of To 1000012466809201

I wanted a random integer converted into a six-digit hex string with a # at the beginning. To get this I used

"#%6x" % random.randint(0xFFFFFF)

This converts to an integer and handles unicode

CharUnicodeInfo.GetDecimalDigitValue('2')

You can read more here.

In the old days, when we could assume that most computers used ASCII, we would just do

int i = c[0] - '0';

But in these days of Unicode, it's not a good idea. It was never a good idea if your code had to run on a non-ASCII computer.

Edit: Although it looks hackish, evidently it is guaranteed by the standard to work. Thanks @Earwicker.

The plus operator converts operands to int first and then does the addition. So the result is the int. You need to cast it back to short explicitly because conversions from a "longer" type to "shorter" type a made explicit, so that you don't loose data accidentally with an implicit cast.

As to why int16 is cast to int, the answer is, because this is what is defined in C# spec. And C# is this way is because it was designed to closely match to the way how CLR works, and CLR has only 32/64 bit arithmetic and not 16 bit. Other languages on top of CLR may choose to expose this differently.

int i = 0;
bool b = Convert.ToBoolean(i);

It's better to avoid unnecessary autoboxing for 2 reasons.

For one thing, it's a bit slower than int < int, as you're (sometimes) creating an extra object;

void doSomethingWith(Integer integerObject){ ...
  int i = 1000;
  doSomethingWith(i);//gets compiled into doSomethingWith(Integer.valueOf(i));

The bigger issue is that hidden autoboxing can hide exceptions:

void doSomethingWith (Integer count){
  if (count>0)  // gets compiled into count.intValue()>0

Calling this method with null will throw a NullPointerException.

The split between primitives and wrapper objects in java was always described as a kludge for speed. Autoboxing almost hides this, but not quite - it's cleaner just to keep track of the type. So if you've got an Integer object, you can just call compare() or intValue(), and if you've got the primitive just check the value directly.

There is also the java.lang.Integer.toString(int i, int base) method, which would be more appropriate if your code might one day handle bases other than 2 (binary). Keep in mind that this method only gives you an unsigned representation of the integer i, and if it is negative, it will tack on a negative sign at the front. It won't use two's complement.

It seems like you are expecting int and unsigned int to be a 16-bit integer. That's apparently not the case. Most likely, it's a 32-bit integer - which is large enough to avoid the wrap-around that you're expecting.

Note that there is no fully C-compliant way to do this because casting between signed/unsigned for values out of range is implementation-defined. But this will still work in most cases:

unsigned int x = 65529;
int y = (short) x;      //  If short is a 16-bit integer.

or alternatively:

unsigned int x = 65529;
int y = (int16_t) x;    //  This is defined in <stdint.h>

A little bit more expanded than list comprehension but likewise useful:

def str_list_to_int_list(str_list):
    n = 0
    while n < len(str_list):
        str_list[n] = int(str_list[n])
        n += 1
    return(str_list)

e.g.

>>> results = ["1", "2", "3"]
>>> str_list_to_int_list(results)
[1, 2, 3]

Also:

def str_list_to_int_list(str_list):
    int_list = [int(n) for n in str_list]
    return int_list

From Linux kernel (GPLv2):

/*
 * Divide positive or negative dividend by positive divisor and round
 * to closest integer. Result is undefined for negative divisors and
 * for negative dividends if the divisor variable type is unsigned.
 */
#define DIV_ROUND_CLOSEST(x, divisor)(          \
{                           \
    typeof(x) __x = x;              \
    typeof(divisor) __d = divisor;          \
    (((typeof(x))-1) > 0 ||             \
     ((typeof(divisor))-1) > 0 || (__x) > 0) ?  \
        (((__x) + ((__d) / 2)) / (__d)) :   \
        (((__x) - ((__d) / 2)) / (__d));    \
}                           \
)

What Every Computer Scientist Should Know About Floating-Point Arithmetic

Floating-point numbers cannot represent all the numbers. In particular, 2.51 cannot be represented by a floating-point number, and is represented by a number very close to it:

>>> print "%.16f" % 2.51
2.5099999999999998
>>> 2.51*100
250.99999999999997
>>> 4.02*100
401.99999999999994

If you use int, which truncates the numbers, you get:

250
401

Have a look at the Decimal type.

By the way guys, (int)Decimal.MaxValue will overflow. You can't get the "int" part of a decimal because the decimal is too friggen big to put in the int box. Just checked... its even too big for a long (Int64).

If you want the bit of a Decimal value to the LEFT of the dot, you need to do this:

Math.Truncate(number)

and return the value as... A DECIMAL or a DOUBLE.

edit: Truncate is definitely the correct function!

Use atoi() from <stdlib.h>

http://linux.die.net/man/3/atoi

Or, write your own atoi() function which will convert char* to int

int a2i(const char *s)
{
  int sign=1;
  if(*s == '-'){
    sign = -1;
    s++;
  }
  int num=0;
  while(*s){
    num=((*s)-'0')+num*10;
    s++;   
  }
  return num*sign;
}

Between int32 and int32_t, (and likewise between int8 and int8_t) the difference is pretty simple: the C standard defines int8_t and int32_t, but does not define anything named int8 or int32 -- the latter (if they exist at all) is probably from some other header or library (most likely predates the addition of int8_t and int32_t in C99).

Plain int is quite a bit different from the others. Where int8_t and int32_t each have a specified size, int can be any size >= 16 bits. At different times, both 16 bits and 32 bits have been reasonably common (and for a 64-bit implementation, it should probably be 64 bits).

On the other hand, int is guaranteed to be present in every implementation of C, where int8_t and int32_t are not. It's probably open to question whether this matters to you though. If you use C on small embedded systems and/or older compilers, it may be a problem. If you use it primarily with a modern compiler on desktop/server machines, it probably won't be.

Oops -- missed the part about char. You'd use int8_t instead of char if (and only if) you want an integer type guaranteed to be exactly 8 bits in size. If you want to store characters, you probably want to use char instead. Its size can vary (in terms of number of bits) but it's guaranteed to be exactly one byte. One slight oddity though: there's no guarantee about whether a plain char is signed or unsigned (and many compilers can make it either one, depending on a compile-time flag). If you need to ensure its being either signed or unsigned, you need to specify that explicitly.

You can just convert the string like that [str intValue] or [str integerValue]

integerValue Returns the NSInteger value of the receiver’s text.

• (NSInteger)integerValue Return Value The NSInteger value of the receiver’s text, assuming a decimal representation and skipping whitespace at the beginning of the string. Returns 0 if the receiver doesn’t begin with a valid decimal text representation of a number.

for more information refer here

numbers = [1, 2, 3]
numsum = sum(list(numbers))
print(numsum)

This would work, if your are trying to Sum up a list.

As others have said, the minumum/maximum values the column can store and how much storage it takes in bytes is only defined by the type, not the length.

A lot of these answers are saying that the (11) part only affects the display width which isn't exactly true, but mostly.

A definition of int(2) with no zerofill specified will:

• still accept a value of 100
• still display a value of 100 when output (not 0 or 00)
• the display width will be the width of the largest value being output from the select query.

The only thing the (2) will do is if zerofill is also specified:

• a value of 1 will be shown 01.
• When displaying values, the column will always have a width of the maximum possible value the column could take which is 10 digits for an integer, instead of the miniumum width required to display the largest value that column needs to show for in that specific select query, which could be much smaller.
• The column can still take, and show a value exceeding the length, but these values will not be prefixed with 0s.

The best way to see all the nuances is to run:

CREATE TABLE `mytable` (
    `id` int(11) NOT NULL AUTO_INCREMENT,
    `int1` int(10) NOT NULL,
    `int2` int(3) NOT NULL,
    `zf1` int(10) ZEROFILL NOT NULL,
    `zf2` int(3) ZEROFILL NOT NULL,
    PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `mytable` 
(`int1`, `int2`, `zf1`, `zf2`) 
VALUES
(10000, 10000, 10000, 10000),
(100, 100, 100, 100);

select * from mytable;

which will output:

+----+-------+-------+------------+-------+
| id | int1  | int2  | zf1        | zf2   |
+----+-------+-------+------------+-------+
|  1 | 10000 | 10000 | 0000010000 | 10000 |
|  2 |   100 |   100 | 0000000100 |   100 |
+----+-------+-------+------------+-------+

This answer is tested against MySQL 5.7.12 for Linux and may or may not vary for other implementations.

In C++, now int and other data is stored using 2's compliment method. That means the range is:

-2147483648 to 2147483647

or -2^31 to 2^31-1

1 bit is reserved for 0 so positive value is one less than 2^(31)

Converting int64:

n := int64(32)
str := strconv.FormatInt(n, 10)

fmt.Println(str)
// Prints "32"

Could anyone help explain why

In Python 2 a python "int" was equivalent to a C long. In Python 3 an "int" is an arbitrary precision type but numpy still uses "int" it to represent the C type "long" when creating arrays.

The size of a C long is platform dependent. On windows it is always 32-bit. On unix-like systems it is normally 32 bit on 32 bit systems and 64 bit on 64 bit systems.

or give a solution for the code on windows? Thanks so much!

Choose a data type whose size is not platform dependent. You can find the list at https://docs.scipy.org/doc/numpy/reference/arrays.scalars.html#arrays-scalars-built-in the most sensible choice would probably be np.int64

In Java there are two basic types in the JVM. 1) Primitive types and 2) Reference Types. int is a primitive type and Integer is a class type (which is kind of reference type).

Primitive values do not share state with other primitive values. A variable whose type is a primitive type always holds a primitive value of that type.

int aNumber = 4;
int anotherNum = aNumber;
aNumber += 6;
System.out.println(anotherNum); // Prints 4

An object is a dynamically created class instance or an array. The reference values (often just references) are pointers to these objects and a special null reference, which refers to no object. There may be many references to the same object.

Integer aNumber = Integer.valueOf(4);
Integer anotherNumber = aNumber; // anotherNumber references the 
                                 // same object as aNumber

Also in Java everything is passed by value. With objects the value that is passed is the reference to the object. So another difference between int and Integer in java is how they are passed in method calls. For example in

public int add(int a, int b) {
    return a + b;
}
final int two = 2;
int sum = add(1, two);

The variable two is passed as the primitive integer type 2. Whereas in

public int add(Integer a, Integer b) {
    return a.intValue() + b.intValue();
}
final Integer two = Integer.valueOf(2);
int sum = add(Integer.valueOf(1), two);

The variable two is passed as a reference to an object that holds the integer value 2.

@WolfmanDragon: Pass by reference would work like so:

public void increment(int x) {
  x = x + 1;
}
int a = 1;
increment(a);
// a is now 2

When increment is called it passes a reference (pointer) to variable a. And the increment function directly modifies variable a.

And for object types it would work as follows:

public void increment(Integer x) {
  x = Integer.valueOf(x.intValue() + 1);
}
Integer a = Integer.valueOf(1);
increment(a);
// a is now 2

Do you see the difference now?

Math.round also returns an integer value, so you don't need to typecast.

int b = Math.round(float a);

In Java, you really want to use Integer.toString to convert an integer to its corresponding String value. If you are dealing with just the digits 0-9, then you could use something like this:

private static final char[] DIGITS =
    {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};

private static char getDigit(int digitValue) {
   assertInRange(digitValue, 0, 9);
   return DIGITS[digitValue];
}

Or, equivalently:

private static int ASCII_ZERO = 0x30;

private static char getDigit(int digitValue) {
  assertInRange(digitValue, 0, 9);
  return ((char) (digitValue + ASCII_ZERO));
}

If you already have the int typed as an Integer you can do this:

Integer y = 1;
long x = y.longValue();

You want to cast the numbers:

double num3 = (double)num1/(double)num2;

Note: If any of the arguments in C# is a double, a double divide is used which results in a double. So, the following would work too:

double num3 = (double)num1/num2;

For more information see:

Dot Net Perls

Updated answer for Swift 2.0+:

toInt() method gives an error, as it was removed from String in Swift 2.x. Instead, the Int type now has an initializer that accepts a String:

let a: Int? = Int(firstTextField.text)
let b: Int? = Int(secondTextField.text)

Using static cast would probably result in something like this:

// This does not prevent a possible type overflow
const char char_max = -1;

int i = 48;
char c = (i & char_max);

To prevent possible type overflow you could do this:

const char char_max = (char)(((unsigned char) char(-1)) / 2);

int i = 128;
char c = (i & char_max); // Would always result in positive signed values.

Where reinterpret_cast would probably just directly convert to char, without any cast safety. -> Never use reinterpret_cast if you can also use static_cast. If you're casting between classes, static_cast will also ensure, that the two types are matching (the object is a derivate of the cast type).

If your object a polymorphic type and you don't know which one it is, you should use dynamic_cast which will perform a type check at runtime and return nullptr if the types do not match.

IF you need const_cast you most likely did something wrong and should think about possible alternatives to fix const correctness in your code.

Because Convert.ToInt32 rounds:

Return Value: rounded to the nearest 32-bit signed integer. If value is halfway between two whole numbers, the even number is returned; that is, 4.5 is converted to 4, and 5.5 is converted to 6.

...while the cast truncates:

When you convert from a double or float value to an integral type, the value is truncated.

Update: See Jeppe Stig Nielsen's comment below for additional differences (which however do not come into play if score is a real number as is the case here).

If you need a general purpose conversion from a string which per se is not a bool, you should better write a routine similar to the one depicted below. In keeping with the spirit of duck typing, I have not silently passed the error but converted it as appropriate for the current scenario.

>>> def str2bool(st):
try:
    return ['false', 'true'].index(st.lower())
except (ValueError, AttributeError):
    raise ValueError('no Valid Conversion Possible')


>>> str2bool('garbaze')

Traceback (most recent call last):
  File "<pyshell#106>", line 1, in <module>
    str2bool('garbaze')
  File "<pyshell#105>", line 5, in str2bool
    raise TypeError('no Valid COnversion Possible')
TypeError: no Valid Conversion Possible
>>> str2bool('false')
0
>>> str2bool('True')
1

#include <algorithm>

Include this and then you can compile it using...

g++ -Wall -std=c++11 test.cpp -o test

You can also add "cd /d %~dp0" as the first line of a .bat file in the same directory as your source file so all you have to do is double click on the .bat file for an "automated" compilation.

Hope this helps!

One that I use often:

 Integer.parseInt("1234");

Point is, there are plenty of ways to do this, all equally valid. As to which is most optimum/efficient, you'd have to ask someone else.

1.) I need to check if the object is not null; Is the following expression correct;

if (person == null){ }

YES. This is how you check if object is null.

2.) I need to know if the ID contains an Int.

if(person.getId()==null){}

NO Since id is defined as primitive int, it will be default initialized with 0 and it will never be null. There is no need to check primitive types, if they are null. They will never be null. If you want, you can compare against the default value 0 as if(person.getId()==0){}.

The opposite of read is show.

Prelude> show 3
"3"

Prelude> read $ show 3 :: Int
3

Integers (int for short) are the numbers you count with 0, 1, 2, 3 ... and their negative counterparts ... -3, -2, -1 the ones without the decimal part.

So once you introduce a decimal point, your not really dealing with integers. You're dealing with rational numbers. The Python float or decimal types are what you want to represent or approximate these numbers.

You may be used to a language that automatically does this for you(Php). Python, though, has an explicit preference for forcing code to be explicit instead implicit.

Change your code to:

int total=0, number=0;
float percentage=0.0f;

percentage=((float)number/total)*100f;
printf("%.2f", (double)percentage);

%d seems to be the norm for printing integers, I never figured out why, they behave identically.

Double is a wrapper class,

The Double class wraps a value of the primitive type double in an object. An object of type Double contains a single field whose type is double.

In addition, this class provides several methods for converting a double to a String and a String to a double, as well as other constants and methods useful when dealing with a double.

The double data type,

The double data type is a double-precision 64-bit IEEE 754 floating point. Its range of values is 4.94065645841246544e-324d to 1.79769313486231570e+308d (positive or negative). For decimal values, this data type is generally the default choice. As mentioned above, this data type should never be used for precise values, such as currency.

Check each datatype with their ranges : Java's Primitive Data Types.

Important Note : If you'r thinking to use double for precise values, you need to re-think before using it. Java Traps: double

Have you tried strtol()?

strtol - convert string to a long integer

Example:

const char *hexstring = "abcdef0";
int number = (int)strtol(hexstring, NULL, 16);

In case the string representation of the number begins with a 0x prefix, one must should use 0 as base:

const char *hexstring = "0xabcdef0";
int number = (int)strtol(hexstring, NULL, 0);

(It's as well possible to specify an explicit base such as 16, but I wouldn't recommend introducing redundancy.)

While I agree on using the TryParse method, a lot of people dislike the use of out parameter (myself included). With tuple support having been added to C#, an alternative is to create an extension method that will limit the number of times you use out to a single instance:

public static class StringExtensions
{
    public static (int result, bool canParse) TryParse(this string s)
    {
        int res;
        var valid = int.TryParse(s, out res);
        return (result: res, canParse: valid);
    }
}

(Source: C# how to convert a string to int)

I agree with above answers, the best way to get country from ip address is Maxmind.

If you want to write code in java, you might want to use i.e. geoip-api-1.2.10.jar and geoIP dat files (GeoIPCity.dat), which can be found via google.

Following code may be useful for you to get almost all information related to location, I am also using the same code.

public static String getGeoDetailsUsingMaxmind(String ipAddress, String desiredValue) 
    {
        Location getLocation;
        String returnString = "";
        try
        {
            String geoIPCity_datFile = System.getenv("AUTOMATION_HOME").concat("/tpt/GeoIP/GeoIPCity.dat");
            LookupService isp = new LookupService(geoIPCity_datFile);
            getLocation = isp.getLocation(ipAddress);
            isp.close();

            //Getting all location details 
            if(desiredValue.equalsIgnoreCase("latitude") || desiredValue.equalsIgnoreCase("lat"))
            {
                returnString = String.valueOf(getLocation.latitude);
            }
            else if(desiredValue.equalsIgnoreCase("longitude") || desiredValue.equalsIgnoreCase("lon"))
            {
                returnString = String.valueOf(getLocation.longitude);
            }
            else if(desiredValue.equalsIgnoreCase("countrycode") || desiredValue.equalsIgnoreCase("country"))
            {
                returnString = getLocation.countryCode;
            }
            else if(desiredValue.equalsIgnoreCase("countryname"))
            {
                returnString = getLocation.countryName;
            }
            else if(desiredValue.equalsIgnoreCase("region"))
            {
                returnString = getLocation.region;
            }
            else if(desiredValue.equalsIgnoreCase("metro"))
            {
                returnString = String.valueOf(getLocation.metro_code);
            }
            else if(desiredValue.equalsIgnoreCase("city"))
            {
                returnString = getLocation.city;
            }
            else if(desiredValue.equalsIgnoreCase("zip") || desiredValue.equalsIgnoreCase("postalcode"))
            {
                returnString = getLocation.postalCode;
            }
            else
            {
                returnString = "";
                System.out.println("There is no value found for parameter: "+desiredValue);
            }

            System.out.println("Value of: "+desiredValue + " is: "+returnString + " for ip address: "+ipAddress);
        }
        catch (Exception e) 
        {
            System.out.println("Exception occured while getting details from max mind. " + e);
        }
        finally
        {
            return returnString;
        }
    }

Put this bean in your configuration class.

 @Bean
  public Validator localValidatorFactoryBean() {
    return new LocalValidatorFactoryBean();
  }

and then You can use

 <T> BindingResult validate(T t) {
    DataBinder binder = new DataBinder(t);
    binder.setValidator(validator);
    binder.validate();
    return binder.getBindingResult();
}

for validating a bean manually. Then You will get all result in BindingResult and you can retrieve from there.

BTW: Converting is highly important if you are serialized, mainly because the de-serialization breaks the type of objects and turns into stdclass, including DateTime objects.

I updated the example of @Jadrovski, now it allows objects and arrays.

example

$stdobj=new StdClass();
$stdobj->field=20;
$obj=new SomeClass();
fixCast($obj,$stdobj);

example array

$stdobjArr=array(new StdClass(),new StdClass());
$obj=array(); 
$obj[0]=new SomeClass(); // at least the first object should indicates the right class.
fixCast($obj,$stdobj);

code: (its recursive). However, i don't know if its recursive with arrays. May be its missing an extra is_array

public static function fixCast(&$destination,$source)
{
    if (is_array($source)) {
        $getClass=get_class($destination[0]);
        $array=array();
        foreach($source as $sourceItem) {
            $obj = new $getClass();
            fixCast($obj,$sourceItem);
            $array[]=$obj;
        }
        $destination=$array;
    } else {
        $sourceReflection = new \ReflectionObject($source);
        $sourceProperties = $sourceReflection->getProperties();
        foreach ($sourceProperties as $sourceProperty) {
            $name = $sourceProperty->getName();
            if (is_object(@$destination->{$name})) {
                fixCast($destination->{$name}, $source->$name);
            } else {
                $destination->{$name} = $source->$name;
            }
        }
    }
}

The simplest solution out of all Answers:

DESC `table name`

or

DESCRIBE `table name`

or

SHOW COLUMNS FROM `table name`

Single dimensional array decays to a pointer pointer pointing to the first element in the array. While a 2D array decays to a pointer pointing to first row. So, the function prototype should be -

void myFunction(double (*myArray) [10]);

I would prefer std::vector over raw arrays.

There isn't any big deal in your above snippet, but imagine a function with a few more arguments and quite a few more lines of code. Then you decide to rename your data argument as yadda, but miss one of the places it is used in the function's body... Now data refers to the global, and you start having weird behaviour - where you would have a much more obvious NameError if you didn't have a global name data.

Also remember that in Python everything is an object (including modules, classes and functions), so there's no distinct namespaces for functions, modules or classes. Another scenario is that you import function foo at the top of your module, and use it somewhere in your function body. Then you add a new argument to your function and named it - bad luck - foo.

Finally, built-in functions and types also live in the same namespace and can be shadowed the same way.

None of this is much of a problem if you have short functions, good naming and a decent unit test coverage, but well, sometimes you have to maintain less than perfect code and being warned about such possible issues might help.

Since ID is auto increment, you can also specify ID=NULL as,

LOAD XML LOCAL INFILE '/pathtofile/file.xml' INTO TABLE my_tablename SET ID=NULL;

Take hidden field with id or class and value with session and get it in javascript.

Javascript var session = $('#session').val(); //get by jQuery

You need to declare your clients variable as public, e.g.

public string clients;

but you should probably do it as a Property, e.g.

private string clients;
public string Clients{ get{ return clients; } set {clients = value;} }

And then you can call it in your .aspx page like this:

<%=Clients%>

Variables in C# are private by default. Read more on access modifiers in C# on MSDN and properties in C# on MSDN

First of all, the easiest way to run things at startup is to add them to the file /etc/rc.local.

Another simple way is to use @reboot in your crontab. Read the cron manpage for details.

However, if you want to do things properly, in addition to adding a script to /etc/init.d you need to tell ubuntu when the script should be run and with what parameters. This is done with the command update-rc.d which creates a symlink from some of the /etc/rc* directories to your script. So, you'd need to do something like:

update-rc.d yourscriptname start 2

However, real init scripts should be able to handle a variety of command line options and otherwise integrate to the startup process. The file /etc/init.d/README has some details and further pointers.

std::move itself doesn't really do much. I thought that it called the moved constructor for an object, but it really just performs a type cast (casting an lvalue variable to an rvalue so that the said variable can be passed as an argument to a move constructor or assignment operator).

So std::move is just used as a precursor to using move semantics. Move semantics is essentially an efficient way for dealing with temporary objects.

Consider Object A = B + C + D + E + F;

This is nice looking code, but E + F produces a temporary object. Then D + temp produces another temporary object and so on. In each normal "+" operator of a class, deep copies occur.

For example

Object Object::operator+ (const Object& rhs) {
    Object temp (*this);
    // logic for adding
    return temp;
}

The creation of the temporary object in this function is useless - these temporary objects will be deleted at the end of the line anyway as they go out of scope.

We can rather use move semantics to "plunder" the temporary objects and do something like

 Object& Object::operator+ (Object&& rhs) {
     // logic to modify rhs directly
     return rhs;
 }

This avoids needless deep copies being made. With reference to the example, the only part where deep copying occurs is now E + F. The rest uses move semantics. The move constructor or assignment operator also needs to be implemented to assign the result to A.

If you are specifying the output format manually you also need to make sure the args option is last in the list of output fields, otherwise it will be truncated.

ps -A -o args,pid,lstart gives

/usr/lib/postgresql/9.5/bin 29900 Thu May 11 10:41:59 2017
postgres: checkpointer proc 29902 Thu May 11 10:41:59 2017
postgres: writer process    29903 Thu May 11 10:41:59 2017
postgres: wal writer proces 29904 Thu May 11 10:41:59 2017
postgres: autovacuum launch 29905 Thu May 11 10:41:59 2017
postgres: stats collector p 29906 Thu May 11 10:41:59 2017
[kworker/2:0]               30188 Fri May 12 09:20:17 2017
/usr/lib/upower/upowerd     30651 Mon May  8 09:57:58 2017
/usr/sbin/apache2 -k start  31288 Fri May 12 07:35:01 2017
/usr/sbin/apache2 -k start  31289 Fri May 12 07:35:01 2017
/sbin/rpc.statd --no-notify 31635 Mon May  8 09:49:12 2017
/sbin/rpcbind -f -w         31637 Mon May  8 09:49:12 2017
[nfsiod]                    31645 Mon May  8 09:49:12 2017
[kworker/1:0]               31801 Fri May 12 09:49:15 2017
[kworker/u16:0]             32658 Fri May 12 11:00:51 2017

but ps -A -o pid,lstart,args gets you the full command line:

29900 Thu May 11 10:41:59 2017 /usr/lib/postgresql/9.5/bin/postgres -D /tmp/4493-d849-dc76-9215 -p 38103
29902 Thu May 11 10:41:59 2017 postgres: checkpointer process   
29903 Thu May 11 10:41:59 2017 postgres: writer process   
29904 Thu May 11 10:41:59 2017 postgres: wal writer process   
29905 Thu May 11 10:41:59 2017 postgres: autovacuum launcher process   
29906 Thu May 11 10:41:59 2017 postgres: stats collector process   
30188 Fri May 12 09:20:17 2017 [kworker/2:0]
30651 Mon May  8 09:57:58 2017 /usr/lib/upower/upowerd
31288 Fri May 12 07:35:01 2017 /usr/sbin/apache2 -k start
31289 Fri May 12 07:35:01 2017 /usr/sbin/apache2 -k start
31635 Mon May  8 09:49:12 2017 /sbin/rpc.statd --no-notify
31637 Mon May  8 09:49:12 2017 /sbin/rpcbind -f -w
31645 Mon May  8 09:49:12 2017 [nfsiod]
31801 Fri May 12 09:49:15 2017 [kworker/1:0]
32658 Fri May 12 11:00:51 2017 [kworker/u16:0]

Use character classes: [ \t]

I would add one more thing to Marc's answer: The memberOf attribute can't contain wildcards, so you can't say something like "memberof=CN=SPS*", and expect it to find all groups that start with "SPS".

Here you go:

<?php

$html = '<p style="border: 1px solid red;">Test</p>';
echo preg_replace('/<p style="(.+?)">(.+?)<\/p>/i', "<p>$2</p>", $html);

?>

By the way, as pointed out by others, regex are not suggested for this.

You can use this Win32 native port of the patch utility.

It comes along with a bigger selection of other utilities and in contrast to Cygwin and similar it does not need any DLLs or similar. Just pick your tiny executable of choice and store it wherever you want.

Simple usage:

patch.exe -i <patchfile>

Get more help:

patch.exe --help

I know that this post is a bit old but incase anyone finds it still relevant you might want to check out the free geocoding services offered by USC College. This does included address validation via ajax and static calls. The only catch is that they request a link back and only offer allotments of 2500 calls. More than fair. https://webgis.usc.edu/Services/AddressValidation/Default.aspx

you will need to use window.open(url);

references:
http://www.htmlcodetutorial.com/linking/linking_famsupp_120.html
http://www.w3schools.com/jsref/met_win_open.asp

The JSON format can contain only those types of value:

• string
• number
• object
• array
• true
• false
• null

An image is of the type "binary" which is none of those. So you can't directly insert an image into JSON. What you can do is convert the image to a textual representation which can then be used as a normal string.

The most common way to achieve that is with what's called base64. Basically, instead of encoding it as 1 and 0s, it uses a range of 64 characters which makes the textual representation of it more compact. So for example the number '64' in binary is represented as 1000000, while in base64 it's simply one character: =.

There are many ways to encode your image in base64 depending on if you want to do it in the browser or not.

Note that if you're developing a web application, it will be way more efficient to store images separately in binary form, and store paths to those images in your JSON or elsewhere. That also allows your client's browser to cache the images.

The Icon property for a project specifies the icon file (.ico) that will be displayed for the compiled application in Windows Explorer and in the Windows taskbar.

The Icon property can be accessed in the Application pane of the Project Designer; it contains a list of icons that have been added to a project either as resources or as content files.

To specify an application icon

1. With a project selected in Solution Explorer, on the Project menu click Properties.
2. Select the Application pane.
3. Select an icon (.ico) file from the Icon drop-down list.

To specify an application icon and add it to your project

1. With a project selected in Solution Explorer, on the Project menu, click Properties.
2. Select the Application pane.
3. Select Browse from the Icon drop-down list and browse to the location of the icon file that you want.

The icon file is added to your project as a content file and can be seen on top left corner.

And if you want to show separate icons for every form you have to go to each form's properties, select icon attribute and browse for an icon you want.

Here's MSDN link for the same purpose...

Hope this helps.

There's also another way this could happen.

In my app I have a main module that takes care of the ui-router state management, config, and things like that. The actual functionality is all defined in other modules.

I had defined a module

angular.module('account', ['services']);

that had a controller 'DashboardController' in it, but had forgotten to inject it into the main module where I had a state that referenced the DashboardController.

Since the DashboardController wasn't available because of the missing injection, it threw this error.

This is gross, but if you are guaranteed to have at least one, you could do:

SELECT ...
       ...
 WHERE tag IN( @tag1, ISNULL( @tag2, @tag1 ), ISNULL( @tag3, @tag1 ), etc. )

Having IN( 'tag1', 'tag2', 'tag1', 'tag1', 'tag1' ) will be easily optimized away by SQL Server. Plus, you get direct index seeks

Just keep going with your code - you're on the right track:

//call SQL helper class to get initial data 
DataTable dt = sql.ExecuteDataTable("sp_MyProc");

dt.Columns.Add("NewColumn", typeof(System.Int32));

foreach(DataRow row in dt.Rows)
{
    //need to set value to NewColumn column
    row["NewColumn"] = 0;   // or set it to some other value
}

// possibly save your Dataset here, after setting all the new values

The Eclipse Console Window has a Filter Property (in some cases only system.err is active).

Rigt click into Eclipse console window -> Preferences -> Console and ensure that checkbox

Show when Program writes to standard out

is active.

Alternatively you can configure log4j to write alway to System.err like this:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="AppConsole" class="org.apache.log4j.ConsoleAppender">
        <param name="Target" value="System.err" />
        <param name="Encoding" value="ISO-8859-15" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern"
                value="%d{dd.MM.yyyy HH:mm:ss} %5p kontext.%c{1}:%L - %m%n" />
        </layout>
    </appender>
    <root>
        <level value="debug" />
        <appender-ref ref="AppConsole" />
    </root>
</log4j:configuration> 

You want the class Baz, which lives in module foo.bar. With Python 2.7, you want to use importlib.import_module(), as this will make transitioning to Python 3 easier:

import importlib

def class_for_name(module_name, class_name):
    # load the module, will raise ImportError if module cannot be loaded
    m = importlib.import_module(module_name)
    # get the class, will raise AttributeError if class cannot be found
    c = getattr(m, class_name)
    return c

With Python < 2.7:

def class_for_name(module_name, class_name):
    # load the module, will raise ImportError if module cannot be loaded
    m = __import__(module_name, globals(), locals(), class_name)
    # get the class, will raise AttributeError if class cannot be found
    c = getattr(m, class_name)
    return c

Use:

loaded_class = class_for_name('foo.bar', 'Baz')

There are three "default" encodings:

• file.encoding:
  System.getProperty("file.encoding")

• java.nio.Charset:
  Charset.defaultCharset()

• And the encoding of the InputStreamReader:
  InputStreamReader.getEncoding()

You can read more about it on this page.

A man-in-the-middle proxy, like suggested by other answers, is a good solution if you only want to see HTTP/HTTPS traffic.

The best solution for packet sniffing (though it only works for actual iOS devices, not the simulator) I've found is to use rvictl. This blog post has a nice writeup. Basically you do:

rvictl -s <iphone-uid-from-xcode-organizer>

Then you sniff the interface it creates with with Wireshark (or your favorite tool), and when you're done shut down the interface with:

rvictl -x <iphone-uid-from-xcode-organizer>

This is nice because if you want to packet sniff the simulator, you're having to wade through traffic to your local Mac as well, but rvictl creates a virtual interface that just shows you the traffic from the iOS device you've plugged into your USB port.

Note: this only works on a Mac.

For one time action, you can use .dump and .read.

Dump the table my_table from old_db.sqlite

c:\sqlite>sqlite3.exe old_db.sqlite
sqlite> .output mytable_dump.sql
sqlite> .dump my_table
sqlite> .quit

Read the dump into the new_db.sqlite assuming the table there does not exist

c:\sqlite>sqlite3.exe new_db.sqlite
sqlite> .read mytable_dump.sql

Now you have cloned your table. To do this for whole database, simply leave out the table name in the .dump command.

Bonus: The databases can have different encodings.

navigator.onLine is a mess

I face this when trying to make an ajax call to the server.

There are several possible situations when the client is offline:

• the ajax call timouts and you receive error
• the ajax call returns success, but the msg is null
• the ajax call is not executed because browser decides so (may be this is when navigator.onLine becomes false after a while)

The solution I am using is to control the status myself with javascript. I set the condition of a successful call, in any other case I assume the client is offline. Something like this:

var offline;
pendingItems.push(item);//add another item for processing
updatePendingInterval = setInterval("tryUpdatePending()",30000);
tryUpdatePending();

    function tryUpdatePending() {

        offline = setTimeout("$('#offline').show()", 10000);
        $.ajax({ data: JSON.stringify({ items: pendingItems }), url: "WebMethods.aspx/UpdatePendingItems", type: "POST", dataType: "json", contentType: "application/json; charset=utf-8",
          success: function (msg) {
            if ((!msg) || msg.d != "ok")
              return;
            pending = new Array(); //empty the pending array
            $('#offline').hide();
            clearTimeout(offline);
            clearInterval(updatePendingInterval);
          }
        });
      }

Some issues:

1. I'm sure some SMTP servers will let you know immediately if an address you give them does not exist, but some won't as a privacy measure. They'll just accept whatever addresses you give them and silently ignore the ones that don't exist.
2. As the article says, if you do this too often with some servers, they will blacklist you.
3. For some SMTP servers (like gmail), you need to use SSL in order to do anything. This is only true when using gmail's SMTP server to send email.

jQuery.contents() can be used with jQuery.filter to find all child text nodes. With a little twist, you can find grandchildren text nodes as well. No recursion required:

$(function() {_x000D_
  var $textNodes = $("#test, #test *").contents().filter(function() {_x000D_
    return this.nodeType === Node.TEXT_NODE;_x000D_
  });_x000D_
  /*_x000D_
   * for testing_x000D_
   */_x000D_
  $textNodes.each(function() {_x000D_
    console.log(this);_x000D_
  });_x000D_
});

div { margin-left: 1em; }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
_x000D_
<div id="test">_x000D_
  child text 1<br>_x000D_
  child text 2_x000D_
  <div>_x000D_
    grandchild text 1_x000D_
    <div>grand-grandchild text 1</div>_x000D_
    grandchild text 2_x000D_
  </div>_x000D_
  child text 3<br>_x000D_
  child text 4_x000D_
</div>

jsFiddle

Position Independent Code means that the generated machine code is not dependent on being located at a specific address in order to work.

E.g. jumps would be generated as relative rather than absolute.

Pseudo-assembly:

PIC: This would work whether the code was at address 100 or 1000

100: COMPARE REG1, REG2
101: JUMP_IF_EQUAL CURRENT+10
...
111: NOP

Non-PIC: This will only work if the code is at address 100

100: COMPARE REG1, REG2
101: JUMP_IF_EQUAL 111
...
111: NOP

EDIT: In response to comment.

If your code is compiled with -fPIC, it's suitable for inclusion in a library - the library must be able to be relocated from its preferred location in memory to another address, there could be another already loaded library at the address your library prefers.

Depends in how you are hiding your div, diplay=none is different of visibility=hidden and the opacity=0

• Visibility then use ...style.visibility='visible'

• Display then use ...style.display='block' (or others depends how
  you setup ur css, inline, inline-block, flex...)

• Opacity then use ...style.opacity='1';

Real example from my code:

return selected.Select(query => query.Name).Aggregate((a, b) => a + ", " + b);

A query is an object that has a Name property which is a string, and I want the names of all the queries on the selected list, separated by commas.

Here is the optimized solution to do it with SimpleDateFormat parse() method.

SimpleDateFormat formatter = new SimpleDateFormat(
        "EEEE, dd/MM/yyyy/hh:mm:ss");
String strDate = formatter.format(new Date());

try {
    Date pDate = formatter.parse(strDate);
} catch (ParseException e) { // note: parse method can throw ParseException
    e.printStackTrace();
}

Few things to notice

• We don't need to create a Calendar instance to get the current date & time instead use new Date()
• Also it doesn't require 2 instances of SimpleDateFormat as found in the most voted answer for this question. It's just a waste of memory
• Furthermore, catching a generic exception like Exception is a bad practice when we know that the parse method only stands a chance to throw a ParseException. We need to be as specific as possible when dealing with Exceptions. You can refer, throws Exception bad practice?

Binary Search

You can use Collections.binarySearch to search an element in your list (assuming the list is sorted):

Collections.binarySearch(list, new YourObject("a1", "b",
                "c"), new Comparator<YourObject>() {

            @Override
            public int compare(YourObject o1, YourObject o2) {
                return o1.getName().compareTo(o2.getName());
            }
        });

which will return a negative number if the object is not present in the collection or else it will return the index of the object. With this you can search for objects with different searching strategies.

Forgive the flippancy, but if you are doing REST over HTTP then RFC7231 describes exactly what behaviour is expected from GET, PUT, POST and DELETE.

Update (Jul 3 '14):
The HTTP spec intentionally does not define what is returned from POST or DELETE. The spec only defines what needs to be defined. The rest is left up to the implementer to choose.

[self.navigationController pushViewController:someViewController animated:YES];

jQuery:

var inputs = $('#foo');

inputs.each(function(){
          this.style.textTransform = 'uppercase';
       })
       .keyup(function(){
          this.value = this.value.toUpperCase();
       });

1. Set the input's style to capitals (so user doesn't see the change)
2. Automatically adjust the value (so the user doesn't have to hold shift or use caps lock)

I had to add the webkit prefix for safari (but flex not flexbox):

display:-webkit-flex

Answer above is missing an example which might not be obvious (it wasn't to me).

Url could be broken down into parts

https://github.com/liufa/Tuplinator/commit/f36e3c5b3aba23a6c9cf7c01e7485028a23c3811
                  \_____/\________/       \_______________________________________/
                   |        |                              |
            Account name    |                      Hash of revision
                        Project name              

Hash can be found here (you can click it and will get the url from browser).

Hope this saves you some time.

I'm writing common function for change window

this code can be used parallel in all type of project

function changewindow(url,userdata){
    $.ajax({
        type: "POST",
        url: url,
        data: userdata,
        dataType: "html",
        success: function(html){                
            $("#bodycontent").html(html);
        },
        error: function(html){
            alert(html);
        }
    });
}

Have you tried plugin called " Youtube Live Stream Auto Embed"

Its seems to be working. Check it once.

This Code May be Help you : [ Both maximizing and preventing resizing on a JFrame ]

frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
frame.setVisible(true);
frame.setResizable(false);

https://support.procore.com/faq/what-is-the-difference-between-sp-and-idp-initiated-sso

There is much more to this but this is a high level overview on which is which.

Procore supports both SP- and IdP-initiated SSO:

Identity Provider Initiated (IdP-initiated) SSO. With this option, your end users must log into your Identity Provider's SSO page (e.g., Okta, OneLogin, or Microsoft Azure AD) and then click an icon to log into and open the Procore web application. To configure this solution, see Configure IdP-Initiated SSO for Microsoft Azure AD, Configure Procore for IdP-Initated Okta SSO, or Configure IdP-Initiated SSO for OneLogin. OR Service Provider Initiated (SP-initiated) SSO. Referred to as Procore-initiated SSO, this option gives your end users the ability to sign into the Procore Login page and then sends an authorization request to the Identify Provider (e.g., Okta, OneLogin, or Microsoft Azure AD). Once the IdP authenticates the user's identify, the user is logged into Procore. To configure this solution, see Configure Procore-Initiated SSO for Microsoft Azure Active Directory, Configure Procore-Initiated SSO for Okta, or Configure Procore-Initiated SSO for OneLogin.

You want to use two keys independently, so you have two choices:

1. Store the data redundantly with two dicts as {'banana' : {'blue' : 4, ...}, .... } and {'blue': {'banana':4, ...} ...}. Then, searching and sorting is easy but you have to make sure you modify the dicts together.

2. Store it just one dict, and then write functions that iterate over them eg.:

   d = {'banana' : {'blue' : 4, 'yellow':6}, 'apple':{'red':1} }
   
   blueFruit = [(fruit,d[fruit]['blue']) if d[fruit].has_key('blue') for fruit in d.keys()]
   

Opening a file creates it and (unless append ('a') is set) overwrites it with emptyness, such as this:

open(filename, 'w').close()

How about just mapping ....

Array(n).map((value, index) ....) is 80% of the way there. But for some odd reason it does not work. But there is a workaround.

Array(n).map((v,i) => i) // does not work
Array(n).fill().map((v,i) => i) // does dork

For a range

Array(end-start+1).fill().map((v,i) => i + start) // gives you a range

Odd, these two iterators return the same result: Array(end-start+1).entries() and Array(end-start+1).fill().entries()

Have you tried following the advice on the linked help page? The help page at http://g.co/mapsJSApiErrors says:

ApiNotActivatedMapError

The Google Maps JavaScript API is not activated on your API project. You may need to enable the Google Maps JavaScript API under APIs in the Google Developers Console.

See Obtaining an API key.

So check that the key you are using has Google Maps JavaScript API enabled.

First a bit of info in epoch from man gmtime

The ctime(), gmtime() and localtime() functions all take an argument of data type time_t which represents calendar  time.   When  inter-
       preted  as  an absolute time value, it represents the number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal
       Time (UTC).

to understand how epoch should be.

>>> time.time()
1347517171.6514659
>>> time.gmtime(time.time())
(2012, 9, 13, 6, 19, 34, 3, 257, 0)

just ensure the arg you are passing to time.gmtime() is integer.

I guess this should work. I solved my problem with this.

$ sudo yum clean all

$ sudo yum --disablerepo="epel" update nss

As Yaron mentioned, there isn't any difference between where and filter.

filter is an overloaded method that takes a column or string argument. The performance is the same, regardless of the syntax you use.

We can use explain() to see that all the different filtering syntaxes generate the same Physical Plan. Suppose you have a dataset with person_name and person_country columns. All of the following code snippets will return the same Physical Plan below:

df.where("person_country = 'Cuba'").explain()
df.where($"person_country" === "Cuba").explain()
df.where('person_country === "Cuba").explain()
df.filter("person_country = 'Cuba'").explain()

These all return this Physical Plan:

== Physical Plan ==
*(1) Project [person_name#152, person_country#153]
+- *(1) Filter (isnotnull(person_country#153) && (person_country#153 = Cuba))
   +- *(1) FileScan csv [person_name#152,person_country#153] Batched: false, Format: CSV, Location: InMemoryFileIndex[file:/Users/matthewpowers/Documents/code/my_apps/mungingdata/spark2/src/test/re..., PartitionFilters: [], PushedFilters: [IsNotNull(person_country), EqualTo(person_country,Cuba)], ReadSchema: struct<person_name:string,person_country:string>

The syntax doesn't change how filters are executed under the hood, but the file format / database that a query is executed on does. Spark will execute the same query differently on Postgres (predicate pushdown filtering is supported), Parquet (column pruning), and CSV files. See here for more details.

If using Visual Studio 2010 you can right-click on the project for the service, and select properties. Then select the Web tab. Under the Servers section you can configure the URL. There is also a button to create the virtual directory.

Here's what I do:

curl https://raw.githubusercontent.com/creationix/nvm/v0.20.0/install.sh | bash
cd / && . ~/.nvm/nvm.sh && nvm install 0.10.35
. ~/.nvm/nvm.sh && nvm alias default 0.10.35

No Homebrew for this one.

nvm soon will support io.js, but not at time of posting: https://github.com/creationix/nvm/issues/590

Then install everything else, per-project, with a package.json and npm install.

If you have an association on a property pointing to the user (let's say Credit\Entity\UserCreditHistory#user, picked from your example), then the syntax is quite simple:

public function getHistory($users) {
    $qb = $this->entityManager->createQueryBuilder();
    $qb
        ->select('a', 'u')
        ->from('Credit\Entity\UserCreditHistory', 'a')
        ->leftJoin('a.user', 'u')
        ->where('u = :user')
        ->setParameter('user', $users)
        ->orderBy('a.created_at', 'DESC');

    return $qb->getQuery()->getResult();
}

Since you are applying a condition on the joined result here, using a LEFT JOIN or simply JOIN is the same.

If no association is available, then the query looks like following

public function getHistory($users) {
    $qb = $this->entityManager->createQueryBuilder();
    $qb
        ->select('a', 'u')
        ->from('Credit\Entity\UserCreditHistory', 'a')
        ->leftJoin(
            'User\Entity\User',
            'u',
            \Doctrine\ORM\Query\Expr\Join::WITH,
            'a.user = u.id'
        )
        ->where('u = :user')
        ->setParameter('user', $users)
        ->orderBy('a.created_at', 'DESC');

    return $qb->getQuery()->getResult();
}

This will produce a resultset that looks like following:

array(
    array(
        0 => UserCreditHistory instance,
        1 => Userinstance,
    ),
    array(
        0 => UserCreditHistory instance,
        1 => Userinstance,
    ),
    // ...
)

This will try to get the data, if it does not work, it will catch the error and allow you to do anything you need within the catch.

try {
    $content = file_get_contents($site);
} catch(\Exception $e) {
    return 'The file was not found';
}

This question is not new and existing answers give some good theoretical background. I just want to add a more pragmatic answer.

getText is a method of the Context abstract class and in order to call it, one needs an instance of it's subclass (Activity, Service, Application or other). The problem is, that the public static final variables are initialized before any instance of Context is created.

There are several ways to solve this:

1. Make the variable a member variable (field) of the Activity or other subclass of Context by removing the static modifier and placing it within the class body;
2. Keep it static and delay the initialization to a later point (e.g. in the onCreate method);
3. Make it a local variable in the place of actual usage.

You can change the 'template/popover/popover.html' in file 'ui-bootstrap-tpls-0.11.0.js' Write: "bind-html-unsafe" instead of "ng-bind"

It will show all popover with html. *its unsafe html. Use only if you trust the html.

you can use

if(x === undefined)

Homebrew's services tap integrates formulas with the launchctl manager. Adding it is easy:

brew tap homebrew/services

You can then launch MongoDB with this command (this will also start mongodb on boot):

brew services start mongodb

You can also use stop or restart:

brew services stop mongodb
brew services restart mongodb

There is this life changing plugin by tpope called vim-commentary

https://github.com/tpope/vim-commentary

This plugin provides:

• Sanity
• Properly indented comments
• Does not comment out empty/unnecessary lines

Usage:

• Install via Vundle (or Pathogen I guess).
• Highlight your text and press : which will show as :<,'>
• Type Commentary here :<,'>Commentary and press Enter.
• Boom. Your done bud.

string str = "Error mEssage";
Response.Write("<script language=javascript>alert('"+str+"');</script>");

Arrays are static memory allocation, so if you initialize an array of integers:

int[] intArray = new int[15];

The length will be always 15, no matter how many indexes are filled.

And another thing, when you intialize an array of integers, all the indexes will be filled with "0".

Building on rq's answer, I found this line does what I want:

git grep "search for something" $(git log -g --pretty=format:%h -S"search for something")

Which will report the commit ID, filename, and display the matching line, like this:

91ba969:testFile:this is a test

... Does anyone agree that this would be a nice option to be included in the standard git grep command?

Though answers above were very helpful, I've spent a day to make them work, facing various exceptions like "broken channel", "rsa key unknown" and "packet corrupt".

Below is a working reusable class for SFTP FILES UPLOAD/DOWNLOAD using JSch library.

Upload usage:

SFTPFileCopy upload = new SFTPFileCopy(true, /path/to/sourcefile.png", /path/to/destinationfile.png");

Download usage:

SFTPFileCopy download = new SFTPFileCopy(false, "/path/to/sourcefile.png", "/path/to/destinationfile.png");

The class code:

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.UIKeyboardInteractive;
import com.jcraft.jsch.UserInfo;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import javax.swing.JOptionPane;
import menue.Menue;

public class SFTPFileCopy1 {

    public SFTPFileCopy1(boolean upload, String sourcePath, String destPath) throws FileNotFoundException, IOException {
        Session session = null;
        Channel channel = null;
        ChannelSftp sftpChannel = null;
        try {
            JSch jsch = new JSch();
            //jsch.setKnownHosts("/home/user/.putty/sshhostkeys");
            session = jsch.getSession("login", "mysite.com", 22);
            session.setPassword("password");

            UserInfo ui = new MyUserInfo() {
                public void showMessage(String message) {

                    JOptionPane.showMessageDialog(null, message);

                }

                public boolean promptYesNo(String message) {

                    Object[] options = {"yes", "no"};

                    int foo = JOptionPane.showOptionDialog(null,
                            message,
                            "Warning",
                            JOptionPane.DEFAULT_OPTION,
                            JOptionPane.WARNING_MESSAGE,
                            null, options, options[0]);

                    return foo == 0;

                }
            };
            session.setUserInfo(ui);

            session.setConfig("StrictHostKeyChecking", "no");
            session.connect();
            channel = session.openChannel("sftp");
            channel.setInputStream(System.in);
            channel.setOutputStream(System.out);
            channel.connect();
            sftpChannel = (ChannelSftp) channel;

            if (upload) { // File upload.
                byte[] bufr = new byte[(int) new File(sourcePath).length()];
                FileInputStream fis = new FileInputStream(new File(sourcePath));
                fis.read(bufr);
                ByteArrayInputStream fileStream = new ByteArrayInputStream(bufr);
                sftpChannel.put(fileStream, destPath);
                fileStream.close();
            } else { // File download.
                byte[] buffer = new byte[1024];
                BufferedInputStream bis = new BufferedInputStream(sftpChannel.get(sourcePath));
                OutputStream os = new FileOutputStream(new File(destPath));
                BufferedOutputStream bos = new BufferedOutputStream(os);
                int readCount;
                while ((readCount = bis.read(buffer)) > 0) {
                    bos.write(buffer, 0, readCount);
                }
                bis.close();
                bos.close();
            }
        } catch (Exception e) {
            System.out.println(e);
        } finally {
            if (sftpChannel != null) {
                sftpChannel.exit();
            }
            if (channel != null) {
                channel.disconnect();
            }
            if (session != null) {
                session.disconnect();
            }
        }
    }

    public static abstract class MyUserInfo
            implements UserInfo, UIKeyboardInteractive {

        public String getPassword() {
            return null;
        }

        public boolean promptYesNo(String str) {
            return false;
        }

        public String getPassphrase() {
            return null;
        }

        public boolean promptPassphrase(String message) {
            return false;
        }

        public boolean promptPassword(String message) {
            return false;
        }

        public void showMessage(String message) {
        }

        public String[] promptKeyboardInteractive(String destination,
                String name,
                String instruction,
                String[] prompt,
                boolean[] echo) {

            return null;
        }
    }
}

on my Ubuntu 12.04 32 bit. I edit the command to:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86/

And on Ubuntu 12.04 64 bit try:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86_64/

Above things are really helpful.

While creating web services, If you will take case of services consumer will greatly appreciated. I tried to maintain uniformity of the output. Also you can give remark or actual error message. The web service consumer can only check IsSuccess true or not else will sure there is problem, and act as per situation.

  public class Response
    {
        /// <summary>
        /// Gets or sets a value indicating whether this instance is success.
        /// </summary>
        /// <value>
        /// <c>true</c> if this instance is success; otherwise, <c>false</c>.
        /// </value>
        public bool IsSuccess { get; set; } = false;

        /// <summary>
        /// Actual response if succeed 
        /// </summary>
        /// <value>
        /// Actual response if succeed 
        /// </value>
        public object Data { get; set; } = null;

        /// <summary>
        /// Remark if anythig to convey
        /// </summary>
        /// <value>
        /// Remark if anythig to convey
        /// </value>
        public string Remark { get; set; } = string.Empty;
        /// <summary>
        /// Gets or sets the error message.
        /// </summary>
        /// <value>
        /// The error message.
        /// </value>
        public object ErrorMessage { get; set; } = null;


    }  




[HttpGet]
        public IHttpActionResult Employees()
        {
            Response _res = new Response();
            try
            { 
                DalTest objDal = new DalTest(); 
                _res.Data = objDal.GetTestData();
                _res.IsSuccess = true;
                return Ok<Response>(_res);
            }
            catch (Exception ex)
            {
                _res.IsSuccess = false;
                _res.ErrorMessage = ex;
                return ResponseMessage(Request.CreateResponse(HttpStatusCode.InternalServerError, _res )); 
            } 
        }

You are welcome to give suggestion if any :)

When you have opened a folder in a workspace you can do Ctrl+P (Cmd+P on Mac) and start typing the filename, or extension to filter the list of filenames

if you have:

• plugin.ts
• page.css
• plugger.ts

You can type css and press enter and it will open the page.css. If you type .ts the list is filtered and contains two items.

Just right click on the project name and select Android tools and click Rename Application Package name and rename it. It's only for Android projects.

GetThreadId returns the ID of a given native thread. There are ways to make it work with managed threads, I'm sure, all you need to find is the thread handle and pass it to that function.

GetCurrentThreadId returns the ID of the current thread.

GetCurrentThreadId has been deprecated as of .NET 2.0: the recommended way is the Thread.CurrentThread.ManagedThreadId property.

If your code is dealing with XmlElements objects (rather than XmlNodes) then there is the method XmlElement.HasAttribute(string name).

So if you are only looking for attributes on elements (which it looks like from the OP) then it may be more robust to cast as an element, check for null, and then use the HasAttribute method.

foreach (XmlNode xNode in nodeListName)
{
  XmlElement xParentEle = xNode.ParentNode as XmlElement;
  if((xParentEle != null) && xParentEle.HasAttribute("split"))
  {
     parentSplit = xParentEle.Attributes["split"].Value;
  }
}

Here is How you can do in Spring Boot 2.0 by creating custom MongoClient adding Providing more control for Connection ,

Please follow github Link for Full Source Code

@Configuration
@EnableMongoRepositories(basePackages = { "com.frugalis.repository" })
@ComponentScan(basePackages = { "com.frugalis.*" })
@PropertySource("classpath:application.properties")
public class MongoJPAConfig extends AbstractMongoConfiguration {

    @Value("${com.frugalis.mongo.database}")
    private String database;
    @Value("${com.frugalis.mongo.server}")
    private String host;
    @Value("${com.frugalis.mongo.port}")
    private String port;
    @Value("${com.frugalis.mongo.username}")
    private String username;
    @Value("${com.frugalis.mongo.password}")
    private String password;


    @Override
    protected String getDatabaseName() {
        return database;
    }

    @Override
    protected String getMappingBasePackage() {
        return "com.frugalis.entity.mongo";
    }

    @Bean
    public MongoTemplate mongoTemplate() throws Exception {
        return new MongoTemplate(mongoClient(), getDatabaseName());
    }

    @Override
    @Bean
    public MongoClient mongoClient() {

        List<MongoCredential> allCred = new ArrayList<MongoCredential>();
        System.out.println("???????????????????"+username+" "+database+" "+password+" "+host+" "+port);
        allCred.add(MongoCredential.createCredential(username, database, password.toCharArray()));
        MongoClient client = new MongoClient((new ServerAddress(host, Integer.parseInt(port))), allCred);
        client.setWriteConcern(WriteConcern.ACKNOWLEDGED);

        return client;
    }} 

If you are using TypeScript, the code is a little funky because there is no type inference, but this works to get the index of the data that has been supplied to the chart: // events public chartClicked(e:any):void { //console.log(e);

    try {
        console.log('DS ' + e.active['0']._datasetIndex);
        console.log('ID ' +  e.active['0']._index);
        console.log('Label: ' + this.doughnutChartLabels[e.active['0']._index]);
        console.log('Value: ' + this.doughnutChartData[e.active['0']._index]);


    } catch (error) {
        console.log("Error In LoadTopGraph", error);
    }

    try {
        console.log(e[0].active);
    } catch (error) {
        //console.log("Error In LoadTopGraph", error);
    }



}

Alternatively,

1) Without touching System.Reflection namespace,

GETNAME(new { myInput });

public static string GETNAME<T>(T myInput) where T : class
{
    if (myInput == null)
        return string.Empty;

    return myInput.ToString().TrimStart('{').TrimEnd('}').Split('=')[0].Trim();
}

2) The below one can be faster though (from my tests)

GETNAME(new { variable });
public static string GETNAME<T>(T myInput) where T : class
{
    if (myInput == null)
        return string.Empty;

    return typeof(T).GetProperties()[0].Name;
}

You can also extend this for properties of objects (may be with extension methods):

new { myClass.MyProperty1 }.GETNAME();

You can cache property values to improve performance further as property names don't change during runtime.

The Expression approach is going to be slower for my taste. To get parameter name and value together in one go see this answer of mine

For getting the list of filenames in a specified folder, you can use:

fs.readdir(directory_path, callback_function)

This will return a list which you can parse by simple list indexing like file[0],file[1], etc.

I ran into this error after my client PC crashed, the jest --watch command I was running on the server persisted, and I tried to run jest --watch again.

The addition to /etc/sysctl.conf described in the answers above worked around this issue, but it was also important to find my old process via ps aux | grep node and kill it.

Manually cast the sender to the type of your custom control, and then use it to delete or disable etc. Eg, something like this:

private void myCustomControl_Click(object sender, EventArgs e)
{
  ((MyCustomControl)sender).DoWhatever();
}

The 'sender' is just the object that was actioned (eg clicked).

The event args is subclassed for more complex controls, eg a treeview, so that you can know more details about the event, eg exactly where they clicked.

When I was recently looking for an R function returning indexes of top N max/min numbers in a given vector, I was surprised there is no such a function.

And this is something very similar.

The brute force solution using base::order function seems to be the easiest one.

topMaxUsingFullSort <- function(x, N) {
  sort(x, decreasing = TRUE)[1:min(N, length(x))]
}

But it is not the fastest one in case your N value is relatively small compared to length of the vector x.

On the other side if the N is really small, you can use base::whichMax function iteratively and in each iteration you can replace found value by -Inf

# the input vector 'x' must not contain -Inf value 
topMaxUsingWhichMax <- function(x, N) {
  vals <- c()
  for(i in 1:min(N, length(x))) {
    idx      <- which.max(x)
    vals     <- c(vals, x[idx]) # copy-on-modify (this is not an issue because idxs is relative small vector)
    x[idx]   <- -Inf            # copy-on-modify (this is the issue because data vector could be huge)
  }
  vals
}

I believe you see the problem - the copy-on-modify nature of R. So this will perform better for very very very small N (1,2,3) but it will rapidly slow down for larger N values. And you are iterating over all elements in vector x N times.

I think the best solution in clean R is to use partial base::sort.

topMaxUsingPartialSort <- function(x, N) {
  N <- min(N, length(x))
  x[x >= -sort(-x, partial=N)[N]][1:N]
}

Then you can select the last (Nth) item from the result of functions defiend above.

Note: functions defined above are just examples - if you want to use them, you have to check/sanity inputs (eg. N > length(x)).

I wrote a small article about something very similar (get indexes of top N max/min values of a vector) at http://palusga.cz/?p=18 - you can find here some benchmarks of similar functions I defined above.

Try this, what i use every time :

function myFunction() {_x000D_
        var hash = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012346789";_x000D_
        var random8 = '';_x000D_
        for(var i = 0; i < 5; i++){_x000D_
            random8 += hash[parseInt(Math.random()*hash.length)];_x000D_
        }_x000D_
        console.log(random8);_x000D_
    document.getElementById("demo").innerHTML = "Your 5 character string ===> "+random8;_x000D_
}        _x000D_
        

<!DOCTYPE html>_x000D_
<html>_x000D_
<body>_x000D_
_x000D_
<p>Click the button to genarate 5 character random string .</p>_x000D_
_x000D_
<button onclick="myFunction()">Click me</button>_x000D_
_x000D_
<p id="demo"></p>_x000D_
_x000D_
_x000D_
_x000D_
</body>_x000D_
</html>

The easiest way to do that would be to use the Params plugin, introduced in beta5. It has utility methods to make it easy to access different types of parameters. As always, reading the tests can prove valuable to understand how something is supposed to be used.

Get a single value

To get the value of a named parameter in a controller, you will need to select the appropriate method for the type of parameter you are looking for and pass in the name.

Examples:

$this->params()->fromPost('paramname');   // From POST
$this->params()->fromQuery('paramname');  // From GET
$this->params()->fromRoute('paramname');  // From RouteMatch
$this->params()->fromHeader('paramname'); // From header
$this->params()->fromFiles('paramname');  // From file being uploaded

Default values

All of these methods also support default values that will be returned if no parameter with the given name is found.

Example:

$orderBy = $this->params()->fromQuery('orderby', 'name');

When visiting http://example.com/?orderby=birthdate, $orderBy will have the value birthdate.
When visiting http://example.com/, $orderBy will have the default value name.
 

Get all parameters

To get all parameters of one type, just don't pass in anything and the Params plugin will return an array of values with their names as keys.

Example:

$allGetValues = $this->params()->fromQuery(); // empty method call

When visiting http://example.com/?orderby=birthdate&filter=hasphone $allGetValues will be an array like

array(
    'orderby' => 'birthdate',
    'filter'  => 'hasphone',
);

Not using Params plugin

If you check the source code for the Params plugin, you will see that it's just a thin wrapper around other controllers to allow for more consistent parameter retrieval. If you for some reason want/need to access them directly, you can see in the source code how it's done.

Example:

$this->getRequest()->getRequest('name', 'default');
$this->getEvent()->getRouteMatch()->getParam('name', 'default');

NOTE: You could have used the superglobals $_GET, $_POST etc., but that is discouraged.

It was quite simple for me, i just added my framework to my embedded binaries under app targets

Remove Windows Service via Registry

Its very easy to remove a service from registry if you know the right path. Here is how I did that:

1. Run Regedit or Regedt32

2. Go to the registry entry "HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services"

3. Look for the service that you want delete and delete it. You can look at the keys to know what files the service was using and delete them as well (if necessary).

Delete Windows Service via Command Window

Alternatively, you can also use command prompt and delete a service using following command:

sc delete

You can also create service by using following command

sc create "MorganTechService" binpath= "C:\Program Files\MorganTechSPace\myservice.exe"

Note: You may have to reboot the system to get the list updated in service manager.

@doug & FS.'s answer are very good solutions. I want to share the solution for iteration on pandas.dataframe.

import pandas as pd
df=pd.DataFrame([[1, 2], [3, 4], [4, 3], [2, 3]])
fig = plt.figure(figsize=(14,8))
for i in df.columns:
    ax=plt.subplot(2,1,i+1) 
    df[[i]].plot(ax=ax)
    print(i)
plt.show()

Use widget as PasswordInput

from django import forms
class UserForm(forms.ModelForm):
    password = forms.CharField(widget=forms.PasswordInput)
    class Meta:
        model = User

EDIT: This applies to older versions of Visual Studio / MSBuild (specifically MSVC2015?). With more modern versions, MSBuild is included in Visual Studio Build Tools 2019, and compilers are located in different places and detected in different ways.

This is due to a mismatch of installed MSBuild toolsets and registry settings. It can happen if you did one or more of the following:

• Install multiple Visual Studio versions in the wrong order
• Uninstall one or more versions of Visual Studio
• Manually make registry changes or modifications to the Visual Studio installation

The only safe and reliable solution I know of is to reinstall your OS. If your project needs multiple versions of Visual Studio to build, install the oldest version first. Then fix your code so you can use one single tool to build it, or you or your colleagues will be in the same mess again soon.

If this is not an option for you, first read https://stackoverflow.com/a/41786593/2279059 for a better understanding of the problem and what the various "solutions" actually do. Then, depending on your Visual Studio version and setup, one of the other answers or variations of them may eventually help.

Some more hints:

• If you don't want to reinstall your OS but try to fix your registry instead, you may want to try this answer: https://stackoverflow.com/a/38503503/2279059

Did you check NULLIF? http://msdn.microsoft.com/en-us/library/ms177562.aspx

I had faced similar issue, behind corporate firewall. Did the following, and able to clone repository using git shell from my system running Windows 7 SP1.

1. Set 'all_proxy' environment variable for your user. Required by curl.

   export all_proxy=http://DOMAIN\proxyuser:[email protected]:8080
   

2. Set 'https_proxy' environment variable for your user. Required by curl.

   export https_proxy=http://DOMAIN\proxyuser:[email protected]:8080
   

3. I am not sure if this has any impact. But I did this and it worked:

   git config --global http.sslverify false
   

4. Use https:// for cloning

   git clone https://github.com/project/project.git
   

Note-1: Do not use http://. Using that can give the below error. It can be resolved by using https://.

 error: RPC failed; result=56, HTTP code = 301

Note-2: Avoid having @ in your password. Can use $ though.

Here's how you get the image size from the given URL in Python 3:

from PIL import Image
import urllib.request
from io import BytesIO

file = BytesIO(urllib.request.urlopen('http://getwallpapers.com/wallpaper/full/b/8/d/32803.jpg').read())
im = Image.open(file)
width, height = im.size

Short and simple: Because the elements you are looking for do not exist in the document (yet).

For the remainder of this answer I will use getElementById as example, but the same applies to getElementsByTagName, querySelector and any other DOM method that selects elements.

Possible Reasons

There are two reasons why an element might not exist:

1. An element with the passed ID really does not exist in the document. You should double check that the ID you pass to getElementById really matches an ID of an existing element in the (generated) HTML and that you have not misspelled the ID (IDs are case-sensitive!).

   Incidentally, in the majority of contemporary browsers, which implement querySelector() and querySelectorAll() methods, CSS-style notation is used to retrieve an element by its id, for example: document.querySelector('#elementID'), as opposed to the method by which an element is retrieved by its id under document.getElementById('elementID'); in the first the # character is essential, in the second it would lead to the element not being retrieved.

2. The element does not exist at the moment you call getElementById.

The latter case is quite common. Browsers parse and process the HTML from top to bottom. That means that any call to a DOM element which occurs before that DOM element appears in the HTML, will fail.

Consider the following example:

<script>
    var element = document.getElementById('my_element');
</script>

<div id="my_element"></div>

The div appears after the script. At the moment the script is executed, the element does not exist yet and getElementById will return null.

jQuery

The same applies to all selectors with jQuery. jQuery won't find elements if you misspelled your selector or you are trying to select them before they actually exist.

An added twist is when jQuery is not found because you have loaded the script without protocol and are running from file system:

<script src="//somecdn.somewhere.com/jquery.min.js"></script>

this syntax is used to allow the script to load via HTTPS on a page with protocol https:// and to load the HTTP version on a page with protocol http://

It has the unfortunate side effect of attempting and failing to load file://somecdn.somewhere.com...

Solutions

Before you make a call to getElementById (or any DOM method for that matter), make sure the elements you want to access exist, i.e. the DOM is loaded.

This can be ensured by simply putting your JavaScript after the corresponding DOM element

<div id="my_element"></div>

<script>
    var element = document.getElementById('my_element');
</script>

in which case you can also put the code just before the closing body tag (</body>) (all DOM elements will be available at the time the script is executed).

Other solutions include listening to the load ^[MDN] or DOMContentLoaded ^[MDN] events. In these cases it does not matter where in the document you place the JavaScript code, you just have to remember to put all DOM processing code in the event handlers.

Example:

window.onload = function() {
    // process DOM elements here
};

// or

// does not work IE 8 and below
document.addEventListener('DOMContentLoaded', function() {
    // process DOM elements here
});

Please see the articles at quirksmode.org for more information regarding event handling and browser differences.

jQuery

First make sure that jQuery is loaded properly. Use the browser's developer tools to find out whether the jQuery file was found and correct the URL if it wasn't (e.g. add the http: or https: scheme at the beginning, adjust the path, etc.)

Listening to the load/DOMContentLoaded events is exactly what jQuery is doing with .ready() ^[docs]. All your jQuery code that affects DOM element should be inside that event handler.

In fact, the jQuery tutorial explicitly states:

As almost everything we do when using jQuery reads or manipulates the document object model (DOM), we need to make sure that we start adding events etc. as soon as the DOM is ready.

To do this, we register a ready event for the document.

$(document).ready(function() {
   // do stuff when DOM is ready
});

Alternatively you can also use the shorthand syntax:

$(function() {
    // do stuff when DOM is ready
});

Both are equivalent.

Pylint message control is documented in the Pylint manual:

Is it possible to locally disable a particular message?

Yes, this feature has been added in Pylint 0.11. This may be done by adding # pylint: disable=some-message,another-one at the desired block level or at the end of the desired line of code.

You can use the message code or the symbolic names.

For example,

def test():
    # Disable all the no-member violations in this function
    # pylint: disable=no-member
    ...

global VAR # pylint: disable=global-statement

The manual also has further examples.

There is a wiki that documents all Pylint messages and their codes.

I'm no expert with DOM or Javascript/Typescript but I think that the DOM-Tags can't handle real javascript object somehow. But putting the whole object in as a string and parsing it back to an Object/JSON worked for me:

interface TestObject {
  name:string;
  value:number;
}

@Component({
  selector: 'app',
  template: `
      <h4>Select Object via 2-way binding</h4>

      <select [ngModel]="selectedObject | json" (ngModelChange)="updateSelectedValue($event)">
        <option *ngFor="#o of objArray" [value]="o | json" >{{o.name}}</option>
      </select>

      <h4>You selected:</h4> {{selectedObject }}
  `,
  directives: [FORM_DIRECTIVES]
})
export class App {
  objArray:TestObject[];
  selectedObject:TestObject;
  constructor(){
    this.objArray = [{name: 'foo', value: 1}, {name: 'bar', value: 1}];
    this.selectedObject = this.objArray[1];
  }
  updateSelectedValue(event:string): void{
    this.selectedObject = JSON.parse(event);
  }
}

To switch to Landscape mode in android emulator u have 2 ways to accomplish.

1> You can create a relative layout such that when you switch from one mode to other it will change accordingly

2> You can create 2 separate XML file both the views and use it whenever required

Try this on your TA:

# Simulate multiplying two N-bit two's-complement numbers
# into a 2N-bit accumulator
# Use shift-add so that it's O(base_2_log(N)) not O(N)

for numa, numb in ((3, 5), (-3, 5), (3, -5), (-3, -5), (-127, -127)):
    print numa, numb,
    accum = 0
    negate = False
    if numa < 0:
        negate = True
        numa = -numa
    while numa:
        if numa & 1:
            accum += numb
        numa >>= 1
        numb <<= 1
    if negate:
        accum = -accum
    print accum

output:

3 5 15
-3 5 -15
3 -5 -15
-3 -5 15
-127 -127 16129

It should be a Python expression that, when eval'd, creates an object with the exact same properties as this one. For example, if you have a Fraction class that contains two integers, a numerator and denominator, your __repr__() method would look like this:

# in the definition of Fraction class
def __repr__(self):
    return "Fraction(%d, %d)" % (self.numerator, self.denominator)

Assuming that the constructor takes those two values.

They are reserved for future use (see: Java Language Keywords)

The keywords const and goto are reserved, even though they are not currently used.

The reason why there is no goto statement in Java can be found in "The Java Language Environment":

Java has no goto statement. Studies illustrated that goto is (mis)used more often than not simply "because it's there". Eliminating goto led to a simplification of the language--there are no rules about the effects of a goto into the middle of a for statement, for example. Studies on approximately 100,000 lines of C code determined that roughly 90 percent of the goto statements were used purely to obtain the effect of breaking out of nested loops. As mentioned above, multi-level break and continue remove most of the need for goto statements.

Setting the photo as a background image will give us more control over size and placement, leaving the img tag to serve a different purpose...

Below, if we want the div to be the same aspect ratio as the photo, then placeholder.png is a small transparent image with the same aspect ratio as photo.jpg. If the photo is a square, it's a 1px x 1px placeholder, if the photo is a video thumbnail, it's a 16x9 placeholder, etc.

Specific to the question, use a 1x1 placeholder to maintain the div's square ratio, with a background image using background-size to maintain the photo's aspect ratio.

I used background-position: center center; so the photo will be centered in the div. (Aligning the photo in the vertical center or bottom would get ugly with the photo in the img tag.)

div {
    background: url(photo.jpg) center center no-repeat;
    background-size: contain;
    width: 48px; // or a % in responsive layout
}
img {
    width: 100%;
}

<div><img src="placeholder.png"/></div>

To avoid an extra http request, convert the placeholder image to a data: URL.

<img src="data:image/png;base64,..."/>

It can also be a bug in Mojarra 2.3 https://github.com/eclipse-ee4j/mojarra/issues/4734

The LogManager class determines which log4j config to use in a static block which runs when the class is loaded. There are three options intended for end-users:

1. If you specify log4j.defaultInitOverride to false, it will not configure log4j at all.

2. Specify the path to the configuration file manually yourself and override the classpath search. You can specify the location of the configuration file directly by using the following argument to java:

   -Dlog4j.configuration=<path to properties file>

   in your test runner configuration.

3. Allow log4j to scan the classpath for a log4j config file during your test. (the default)

See also the online documentation.

var a = [1,2,3], b = [4,1,5,2];

b.forEach(function(value){
  if (a.indexOf(value)==-1) a.push(value);
});

console.log(a);
// [1, 2, 3, 4, 5]

For more details read up on Array.indexOf.

If you want to rely on jQuery, instead use jQuery.inArray:

$.each(b,function(value){
  if ($.inArray(value,a)==-1) a.push(value);
});

If all your values are simply and uniquely representable as strings, however, you should use an Object instead of an Array, for a potentially massive speed increase (as described in the answer by @JonathanSampson).

Both the data import function (here: read.csv()) as well as a global option offer you to say stringsAsFactors=FALSE which should fix this.

Just use order allow,deny instead and remove the deny from all line.

$('.sys').children('input[type=text], select').each(function () { ... });

EDIT: Actually this code above is equivalent to the children selector .sys > input[type=text] if you want the descendant select (.sys input[type=text]) you need to use the options given by @NiftyDude.

More information:

• jQuery.children()
• multiple selector

Just cast the entire sockaddr structure to a sockaddr_in. Then you can use:

char *ip = inet_ntoa(their_addr.sin_addr)

To retrieve the standard ip representation.

Java IO using stream oriented APIs is performed using a buffer as temporary storage of data within user space. Data read from disk by DMA is first copied to buffers in kernel space, which is then transfer to buffer in user space. Hence there is overhead. Avoiding it can achieve considerable gain in performance.

We could skip this temporary buffer in user space, if there was a way directly to access the buffer in kernel space. Java NIO provides a way to do so.

ByteBuffer is among several buffers provided by Java NIO. Its just a container or holding tank to read data from or write data to. Above behavior is achieved by allocating a direct buffer using allocateDirect() API on Buffer.

Java Documentation of Byte Buffer has useful information.

Little script I have for that. A modification of it helped to filter out some other non-printable characters in cross-platform legacy files.

#!/usr/bin/perl
# run this as
# convert_dos2unix.pl < input_file > output_file
undef $/;
$_ = <>;
s/\r//ge;
print;

data="UTF-8 DATA"
udata=data.decode("utf-8")
asciidata=udata.encode("ascii","ignore")

Remove the multiple="multiple" attribute and add SIZE=6 with the number of elements you want

you may want to check this site

http://www.htmlcodetutorial.com/forms/_SELECT.html

Self Answer (pretty much summary of other's comments and answers):

• In RStudio, Esc works, on windows, Mac, and ubuntu (and I would guess on other linux distributions as well).

• If the process is ran in say ubuntu shell (and this is not R specific), for example using:

  Rscript my_file.R
  

  Ctrl + c kills the process

  Ctrl + z suspends the process

• Within R shell, Ctrl + C kills helps you escape it

<div style="height:50rem; width:100%; margin: auto;">
  <div style="height:50rem; width:20%; margin-left:4%; margin-right:0%; float:left; background-color: black;"></div>
  <div style="height:50rem; width:20%; margin-left:4%; margin-right:0%; float:left;  background-color: black;"></div>
  <div style="height:50rem; width:20%; margin-left:4%; margin-right:0%; float:left;  background-color: black;"></div>
  <div style="height:50rem; width:20%; margin-left:4%; margin-right:0%; float:left;  background-color: black;"></div>
</div>

margin-right isn't needed though.

Here is a solution in Scala:

def subsets[T](s : Set[T]) : Set[Set[T]] = 
  if (s.size == 0) Set(Set()) else { 
    val tailSubsets = subsets(s.tail); 
    tailSubsets ++ tailSubsets.map(_ + s.head) 
} 

I was facing the same problem. For my solution, I added br enclosed between 2 brackets < > enclosed in double quotation marks, and preceded and followed by the + sign:

+"<br>"+

Try this in your browser and see, it certainly works in my Internet Explorer.

I had this same issue using the Unsplash random image feature. The idea of adding a dummy query string to the end of the URL is correct, but in this instance a completely random parameter doesn't work (I tried it). I can imagine it's the same for some other services too, but for unsplash the parameter needs to be sig, so your image URL would be, for example, http://example.net/image.jpg?sig=RANDOM where random is a random string that will NOT be the same when you update it. I used Math.random()*100 but date is suitable too.

You need to do the above because without it, the browser will see that the image at said path has already been loaded, and will use that cached image to speed up loading.

See https://github.com/unsplash/unsplash-source-js/issues/9

If you're in charge (or have any control over the web service), get them to add a unique root element!

If you can't change that at all, then you can do a bit of regex or string-splitting to parse each and pass each element to your XML Reader.

Alternatively, you could manually add a junk root element, by prefixing an opening tag and suffixing a closing tag.

You can also try setting the system variable path to the location of your nuget exe and restarting VS.

1. Open your system PATH variable and add the location of your nuget.exe (for me this is: C:\Program Files (x86)\NuGet\Visual Studio 2013)
2. Restart Visual Studio

I would have posted this as a comment to your answer @done_merson but I didn't have the required reputation to do that.

Here's another straightforward alternative.

> which(strsplit(string, "")[[1]]=="2")
[1]  4 24

Never use the word "pattern" as is it highly ambiguous. Always use "string" or "regexp" (or in shell "globbing pattern"), whichever it is you really mean.

The specific answer you want is:

awk 'f{print;f=0} /regexp/{f=1}' file

or specializing the more general solution of the Nth record after a regexp (idiom "c" below):

awk 'c&&!--c; /regexp/{c=1}' file

The following idioms describe how to select a range of records given a specific regexp to match:

a) Print all records from some regexp:

awk '/regexp/{f=1}f' file

b) Print all records after some regexp:

awk 'f;/regexp/{f=1}' file

c) Print the Nth record after some regexp:

awk 'c&&!--c;/regexp/{c=N}' file

d) Print every record except the Nth record after some regexp:

awk 'c&&!--c{next}/regexp/{c=N}1' file

e) Print the N records after some regexp:

awk 'c&&c--;/regexp/{c=N}' file

f) Print every record except the N records after some regexp:

awk 'c&&c--{next}/regexp/{c=N}1' file

g) Print the N records from some regexp:

awk '/regexp/{c=N}c&&c--' file

I changed the variable name from "f" for "found" to "c" for "count" where appropriate as that's more expressive of what the variable actually IS.

Another corner case that this could happen: if you read/write a JAR file through a URL and later try to delete the same file within the same JVM session.

File f = new File("/tmp/foo.jar");
URL j = f.toURI().toURL();

URL u = new URL("jar:" + j + "!/META-INF/MANIFEST.MF");
URLConnection c = u.openConnection();

// open a Jar entry in auto-closing manner
try (InputStream i = c.getInputStream()) {

    // just read some stuff; for demonstration purposes only
    byte[] first16 = new byte[16];
    i.read(first16);
    System.out.println(new String(first16));
}

// ...

// i is now closed, so we should be good to delete the jar; but...
System.out.println(f.delete());     // says false!

Reason is that the internal JAR file handling logic of Java, tends to cache JarFile entries:

// inner class of `JarURLConnection` that wraps the actual stream returned by `getInputStream()`

class JarURLInputStream extends FilterInputStream {
    JarURLInputStream(InputStream var2) {
        super(var2);
    }

    public void close() throws IOException {
        try {
            super.close();
        } finally {

            // if `getUseCaches()` is set, `jarFile` won't get closed!

            if (!JarURLConnection.this.getUseCaches()) {
                JarURLConnection.this.jarFile.close();
            }
        }
    }
}

And each JarFile (rather, the underlying ZipFile structure) would hold a handle to the file, right from the time of construction up until close() is invoked:

public ZipFile(File file, int mode, Charset charset) throws IOException {
    // ...

    jzfile = open(name, mode, file.lastModified(), usemmap);

    // ...
}

// ...

private static native long open(String name, int mode, long lastModified,
                                boolean usemmap) throws IOException;

There's a good explanation on this NetBeans issue.

Apparently there are two ways to "fix" this:

• You can disable the JAR file caching - for the current URLConnection, or for all future URLConnections (globally) in the current JVM session:

  URL u = new URL("jar:" + j + "!/META-INF/MANIFEST.MF");
  URLConnection c = u.openConnection();
  
  // for only c
  c.setUseCaches(false);
  
  // globally; for some reason this method is not static,
  // so we still need to access it through a URLConnection instance :(
  c.setDefaultUseCaches(false);
  

• [HACK WARNING!] You can manually purge the JarFile from the cache when you are done with it. The cache manager sun.net.www.protocol.jar.JarFileFactory is package-private, but some reflection magic can get the job done for you:

  class JarBridge {
  
      static void closeJar(URL url) throws Exception {
  
          // JarFileFactory jarFactory = JarFileFactory.getInstance();
          Class<?> jarFactoryClazz = Class.forName("sun.net.www.protocol.jar.JarFileFactory");
          Method getInstance = jarFactoryClazz.getMethod("getInstance");
          getInstance.setAccessible(true);
          Object jarFactory = getInstance.invoke(jarFactoryClazz);
  
          // JarFile jarFile = jarFactory.get(url);
          Method get = jarFactoryClazz.getMethod("get", URL.class);
          get.setAccessible(true);
          Object jarFile = get.invoke(jarFactory, url);
  
          // jarFactory.close(jarFile);
          Method close = jarFactoryClazz.getMethod("close", JarFile.class);
          close.setAccessible(true);
          //noinspection JavaReflectionInvocation
          close.invoke(jarFactory, jarFile);
  
          // jarFile.close();
          ((JarFile) jarFile).close();
      }
  }
  
  // and in your code:
  
  // i is now closed, so we should be good to delete the jar
  JarBridge.closeJar(j);
  System.out.println(f.delete());     // says true, phew.
  

Please note: All this is based on Java 8 codebase (1.8.0_144); they may not work with other / later versions.

A slight generalization to Peter's answer -- you can specify a range over the original array's shape if you want to go beyond three dimensional arrays.

e.g. to flatten all but the last two dimensions:

arr = numpy.zeros((3, 4, 5, 6))
new_arr = arr.reshape(-1, *arr.shape[-2:])
new_arr.shape
# (12, 5, 6)

EDIT: A slight generalization to my earlier answer -- you can, of course, also specify a range at the beginning of the of the reshape too:

arr = numpy.zeros((3, 4, 5, 6, 7, 8))
new_arr = arr.reshape(*arr.shape[:2], -1, *arr.shape[-2:])
new_arr.shape
# (3, 4, 30, 7, 8)

This can be done using CSS3 columns quite easily. Here's an example, HTML:

#limheight {_x000D_
    height: 300px; /*your fixed height*/_x000D_
    -webkit-column-count: 3;_x000D_
       -moz-column-count: 3;_x000D_
            column-count: 3; /*3 in those rules is just placeholder -- can be anything*/_x000D_
}_x000D_
_x000D_
#limheight li {_x000D_
    display: inline-block; /*necessary*/_x000D_
}

<ul id = "limheight">_x000D_
 <li><a href="">Glee is awesome 1</a></li>_x000D_
 <li><a href="">Glee is awesome 2</a></li>_x000D_
 <li><a href="">Glee is awesome 3</a></li>_x000D_
 <li><a href="">Glee is awesome 4</a></li>    _x000D_
 <li><a href="">Glee is awesome 5</a></li>_x000D_
 <li><a href="">Glee is awesome 6</a></li>_x000D_
 <li><a href="">Glee is awesome 7</a></li>_x000D_
 <li><a href="">Glee is awesome 8</a></li>_x000D_
 <li><a href="">Glee is awesome 9</a></li>_x000D_
 <li><a href="">Glee is awesome 10</a></li>_x000D_
 <li><a href="">Glee is awesome 11</a></li>_x000D_
 <li><a href="">Glee is awesome 12</a></li>    _x000D_
 <li><a href="">Glee is awesome 13</a></li>_x000D_
 <li><a href="">Glee is awesome 14</a></li>_x000D_
 <li><a href="">Glee is awesome 15</a></li>_x000D_
 <li><a href="">Glee is awesome 16</a></li>_x000D_
 <li><a href="">Glee is awesome 17</a></li>    _x000D_
 <li><a href="">Glee is awesome 18</a></li>_x000D_
 <li><a href="">Glee is awesome 19</a></li>_x000D_
 <li><a href="">Glee is awesome 20</a></li>_x000D_
</ul>

As noticed in comments start with sent_tokenize(), because word_tokenize() works only on a single sentence. You can filter out punctuation with filter(). And if you have an unicode strings make sure that is a unicode object (not a 'str' encoded with some encoding like 'utf-8').

from nltk.tokenize import word_tokenize, sent_tokenize

text = '''It is a blue, small, and extraordinary ball. Like no other'''
tokens = [word for sent in sent_tokenize(text) for word in word_tokenize(sent)]
print filter(lambda word: word not in ',-', tokens)

Thanks for your answers. I missed that my data is stored in a List<String> which is passed to the tested method. The mistake was that I put the string into the first element of the ArrayList. That's why I thought the String consists of just one single line, because the debugger showed me only one entry.

(document.body.outerHTML).constructor will return String. (take off .constructor and that's your string)

That aughta do it :)

If you make a file called Makefile and add a variable like this $(unittest) then you will be able to use this variable inside the Makefile even with wildcards

example :

make unittest=*

I use BOOST_TEST and by giving a wildcard to parameter --run_test=$(unittest) then I will be able to use regular expression to filter out the test I want my Makefile to run

Since the technologies evolve and this question is top ranked in google, we need to include beyond the mono the new asp.net core, which is a complete rewrite of the asp.net to run for production in Linux and Windows and for development for Linux, Windows and Mac:

You can develop and run your ASP.NET Core apps cross-platform on Windows, Mac and Linux. ASP.NET Core is open source at GitHub.

The rules of locating classes in an archive file is that the location of the file's package declaration and the location of the file within the archive have to match. Since your class is located in WEB-INF/classes, it thinks the class is not valid to run in the current context.

The only way you can do what you're asking is to repackage the war so the .class file resides in the mypackage directory in the root of the archive rather than the WEB-INF/classes directory. However, if you do that you won't be able to access the file from any of your web classes anymore.

If you want to reuse this class in both the war and outside from the java command line, consider building an executable jar you can run from the command line, then putting that jar in the war file's WEB-INF/lib directory.

I think the correct way to phrase your question is Is there a way to get the timestamp by specifying the date in UTC?, because timestamp is just a number which is absolute, not relative. The relative (or timezone aware) piece is the date.

I find pandas very convenient for timestamps, so:

import pandas as pd
dt1 = datetime(2008, 1, 1, 0, 0, 0, 0)
ts1 = pd.Timestamp(dt1, tz='utc').timestamp()
# make sure you get back dt1
datetime.utcfromtimestamp(ts1)  

you should run standlone.bat or .sh with -c standalone-full.xml switch may be work.

You can do

$result = Model::where(...)->count(); 

to count the results.

You can also use

if ($result->isEmpty()){}

to check whether or not the result is empty.

Uses the jquery prop() to clear the selected option

$('#mySelect option:selected').prop('selected', false);

In order to use nslookup, host or gethostbyname() then the target's name will need to be registered with DNS or statically defined in the hosts file on the machine running your program. Yes, you could connect to the target with SSH or some other application and query it directly, but for a generic solution you'll need some sort of DNS entry for it.

CREATE TABLE tbl_PersonalDetail
(ID INT IDENTITY ,[Date] nvarchar(20), Name nvarchar(20), GenderID int);

INSERT INTO Tbl_PersonalDetail VALUES(N'18-4-2015', N'Monay', 2),
                                     (N'31-3-2015', N'Monay', 2),
                                     (N'28-12-2015', N'Monay', 2),
                                     (N'19-4-2015', N'Monay', 2)

DECLARE @Date Nvarchar(200)

SET @Date = (SELECT [Date] FROM Tbl_PersonalDetail WHERE ID = 2)

Update Tbl_PersonalDetail SET [Date] = (REPLACE(@Date , '-','/')) WHERE ID = 2 

You should have if row[2] != "0". Otherwise it's not checking to see if the string value is equal to 0.

To return a value from a VBScript function, assign the value to the name of the function, like this:

Function getNumber
    getNumber = "423"
End Function

A neater way of applying @Helzgate's reply is possibly to replace your 'for .. in' with

for (const field of Object.keys(this.formErrors)) {

You forgot to print the result. What you get is the P in RE(P)L and not the actual printed result.

In Py2.x you should so something like

>>> print "\n".join(['I', 'would', 'expect', 'multiple', 'lines'])
I
would
expect
multiple
lines

and in Py3.X, print is a function, so you should do

print("\n".join(['I', 'would', 'expect', 'multiple', 'lines']))

Now that was the short answer. Your Python Interpreter, which is actually a REPL, always displays the representation of the string rather than the actual displayed output. Representation is what you would get with the repr statement

>>> print repr("\n".join(['I', 'would', 'expect', 'multiple', 'lines']))
'I\nwould\nexpect\nmultiple\nlines'

Use:

$facebook->api('/'.$facebook_uid)

instead of

$facebook->api('/me')

it works.

What you're trying to do sounds dangerous, as that's not the intended use of AUTO_INCREMENT.

If you really want to find the lowest unused key value, don't use AUTO_INCREMENT at all, and manage your keys manually. However, this is NOT a recommended practice.

Take a step back and ask "why you need to recycle key values?" Do unsigned INT (or BIGINT) not provide a large enough key space?

Are you really going to have more than 18,446,744,073,709,551,615 unique records over the course of your application's lifetime?

Delete the .metadata folder in your workspace.

From reading the socket.io source code it looks like the "listen" method takes arguments (server, options, fn) and if "server" is an instance of an HTTP/S server it will simply wrap it for you.

So you could presumably give it an empty server which listens for the 'connection' event and handles the socket remoteAddress; however, things might be very difficult if you need to associate that address with an actual socket.io Socket object.

var http = require('http')
  , io = require('socket.io');
io.listen(new http.Server().on('connection', function(sock) {
  console.log('Client connected from: ' + sock.remoteAddress);
}).listen(80));

Might be easier to submit a patch to socket.io wherein their own Socket object is extended with the remoteAddress property assigned at connection time...

You first have to tell Gnuplot to use a style that uses points, e.g. with points or with linespoints. Try for example:

plot sin(x) with points

Output:

Now try:

plot sin(x) with points pointtype 5

Output:

You may also want to look at the output from the test command which shows you the capabilities of the current terminal. Here are the capabilities for my pngairo terminal:

The differences between Model() and Model.objects.create() are the following:

1. INSERT vs UPDATE

   Model.save() does either INSERT or UPDATE of an object in a DB, while Model.objects.create() does only INSERT.

   Model.save() does

   • UPDATE If the object’s primary key attribute is set to a value that evaluates to True

   • INSERT If the object’s primary key attribute is not set or if the UPDATE didn’t update anything (e.g. if primary key is set to a value that doesn’t exist in the database).

2. Existing primary key

   If primary key attribute is set to a value and such primary key already exists, then Model.save() performs UPDATE, but Model.objects.create() raises IntegrityError.

   Consider the following models.py:

   class Subject(models.Model):
      subject_id = models.PositiveIntegerField(primary_key=True, db_column='subject_id')
      name = models.CharField(max_length=255)
      max_marks = models.PositiveIntegerField()
   

   1. Insert/Update to db with Model.save()

      physics = Subject(subject_id=1, name='Physics', max_marks=100)
      physics.save()
      math = Subject(subject_id=1, name='Math', max_marks=50)  # Case of update
      math.save()
      

      Result:

      Subject.objects.all().values()
      <QuerySet [{'subject_id': 1, 'name': 'Math', 'max_marks': 50}]>
      

   2. Insert to db with Model.objects.create()

      Subject.objects.create(subject_id=1, name='Chemistry', max_marks=100)
      IntegrityError: UNIQUE constraint failed: m****t.subject_id
      

   Explanation: In the example, math.save() does an UPDATE (changes name from Physics to Math, and max_marks from 100 to 50), because subject_id is a primary key and subject_id=1 already exists in the DB. But Subject.objects.create() raises IntegrityError, because, again the primary key subject_id with the value 1 already exists.

3. Forced insert

   Model.save() can be made to behave as Model.objects.create() by using force_insert=True parameter: Model.save(force_insert=True).

4. Return value

   Model.save() return None where Model.objects.create() return model instance i.e. package_name.models.Model

Conclusion: Model.objects.create() does model initialization and performs save() with force_insert=True.

Excerpt from the source code of Model.objects.create()

def create(self, **kwargs):
    """
    Create a new object with the given kwargs, saving it to the database
    and returning the created object.
    """
    obj = self.model(**kwargs)
    self._for_write = True
    obj.save(force_insert=True, using=self.db)
    return obj

For more details follow the links:

1. https://docs.djangoproject.com/en/stable/ref/models/querysets/#create

2. https://github.com/django/django/blob/2d8dcba03aae200aaa103ec1e69f0a0038ec2f85/django/db/models/query.py#L440

It is worth mentioning that 2>&1 means that standard error will be redirected too, together with standard output. So

someCommand | tee someFile

gives you just the standard output in the file, but not the standard error: standard error will appear in console only. To get standard error in the file too, you can use

someCommand 2>&1 | tee someFile

(source: In the shell, what is " 2>&1 "? ). Finally, both the above commands will truncate the file and start clear. If you use a sequence of commands, you may want to get output&error of all of them, one after another. In this case you can use -a flag to "tee" command:

someCommand 2>&1 | tee -a someFile

From the man file:

When --cached is given, the staged content has to match either the tip of the branch or the file on disk, allowing the file to be removed from just the index.

So, for a single file:

git rm --cached mylogfile.log

and for a single directory:

git rm --cached -r mydirectory

You can not change the REFERRER property. What you are asking is to spoof the request.

Just in case you want the referrer to be set like you have opened a url directly or for the fist time{http referrer=null} then reload the page

location.reload();

Should I use(or both) for signing apk for play store release? An answer is YES.

As per https://source.android.com/security/apksigning/v2.html#verification :

In Android 7.0, APKs can be verified according to the APK Signature Scheme v2 (v2 scheme) or JAR signing (v1 scheme). Older platforms ignore v2 signatures and only verify v1 signatures.

I tried to generate build with checking V2(Full Apk Signature) option. Then when I tried to install a release build in below 7.0 device and I am unable to install build in the device.

After that I tried to build by checking both version checkbox and generate release build. Then able to install build.

When I were trying install librosa package with pip (pip install librosa), this error were appeared:

ERROR: Cannot uninstall 'llvmlite'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

I tried to remove llvmlite, but pip uninstall could not remove it. So, I used capability of ignore of pip by this code:

pip install librosa --ignore-installed llvmlite

Indeed, you can use this rule for ignoring a package you don't want to consider:

pip install {package you want to install} --ignore-installed {installed package you don't want to consider}

Maybe like that:

[HttpPost]
public ActionResult Register(Member member)
{
    try
    {
       if (!ModelState.IsValid)
       {
          ModelState.AddModelError("keyName", "Form is not valid");
          return View();
       }
       MembersManager.RegisterMember(member);
    }
    catch (Exception ex)
    {
       ModelState.AddModelError("keyName", ex.Message);
       return View(member);
    }
}

And in display add:

<div class="alert alert-danger">
  @Html.ValidationMessage("keyName")
</div>

OR

<div class="alert alert-danger">
  @Html.ValidationSummary(false)
</div>

create table test (a int, b int , c int, d int);
alter table test drop column b, d;

Be aware that DROP COLUMN does not physically remove the data, and for fixed length types (int, numeric, float, datetime, uniqueidentifier etc) the space is consumed even for records added after the columns were dropped. To get rid of the wasted space do ALTER TABLE ... REBUILD.

The problem is that you can't use a list as the key in a dict, since dict keys need to be immutable. Use a tuple instead.

This is a list:

[x, y]

This is a tuple:

(x, y)

Note that in most cases, the ( and ) are optional, since , is what actually defines a tuple (as long as it's not surrounded by [] or {}, or used as a function argument).

You might find the section on tuples in the Python tutorial useful:

Though tuples may seem similar to lists, they are often used in different situations and for different purposes. Tuples are immutable, and usually contain an heterogeneous sequence of elements that are accessed via unpacking (see later in this section) or indexing (or even by attribute in the case of namedtuples). Lists are mutable, and their elements are usually homogeneous and are accessed by iterating over the list.

And in the section on dictionaries:

Unlike sequences, which are indexed by a range of numbers, dictionaries are indexed by keys, which can be any immutable type; strings and numbers can always be keys. Tuples can be used as keys if they contain only strings, numbers, or tuples; if a tuple contains any mutable object either directly or indirectly, it cannot be used as a key. You can’t use lists as keys, since lists can be modified in place using index assignments, slice assignments, or methods like append() and extend().

In case you're wondering what the error message means, it's complaining because there's no built-in hash function for lists (by design), and dictionaries are implemented as hash tables.

You can change the passwd file directly for the particular user or use the below command

chsh -s /usr/local/bin/bash username

Then log out and log in

#include <stdio.h>

#define BLUE(string) "\x1b[34m" string "\x1b[0m"
#define RED(string) "\x1b[31m" string "\x1b[0m"

int main(void)
{
    printf("this is " RED("red") "!\n");

    // a somewhat more complex ...
    printf("this is " BLUE("%s") "!\n","blue");

    return 0;
}

reading Wikipedia:

• \x1b[0m resets all attributes
• \x1b[31m sets foreground color to red
• \x1b[44m would set the background to blue.
• both : \x1b[31;44m
• both but inversed : \x1b[31;44;7m
• remember to reset afterwards \x1b[0m ...

VOLUME is used in Dockerfile to expose the volume to be used by other containers. Example, create Dockerfile as:

FROM ubuntu:14.04

RUN mkdir /myvol  
RUN echo "hello world" > /myvol/greeting  
VOLUME /myvol

build the image:

$ docker build -t testing_volume .

Run the container, say container1:

$ docker run -it <image-id of above image> bash

Now run another container with volumes-from option as (say-container2)

$ docker run -it --volumes-from <id-of-above-container> ubuntu:14.04 bash

You will get all data from container1 /myvol directory into container2 at same location.

-v option is given at run time of container which is used to mount container's directory on host. It is simple to use, just provide -v option with argument as <host-path>:<container-path>. The whole command may be as $ docker run -v <host-path>:<container-path> <image-id>

The WHERE clause is misplaced, it has to follow the table references and JOIN operations.

Something like this:

 FROM tartikel p1 
 JOIN tartikelpict p2 
   ON p1.kArtikel = p2.kArtikel 
  AND p2.nNr = 1
WHERE p1.dErstellt >= DATE(NOW()) - INTERVAL 7 DAY
ORDER BY p1.kArtikel DESC

EDIT (three plus years later)

The above essentially answers the question "I tried to add a WHERE clause to my query and now the query is returning an error, how do I fix it?"

As to a question about writing a condition that checks a date range of "last 7 days"...

That really depends on interpreting the specification, what the datatype of the column in the table is (DATE or DATETIME) and what data is available... what should be returned.

To summarize: the general approach is to identify a "start" for the date/datetime range, and "end" of that range, and reference those in a query. Let's consider something easier... all rows for "yesterday".

If our column is DATE type. Before we incorporate an expression into a query, we can test it in a simple SELECT

 SELECT DATE(NOW()) + INTERVAL -1 DAY 

and verify the result returned is what we expect. Then we can use that same expression in a WHERE clause, comparing it to a DATE column like this:

 WHERE datecol = DATE(NOW()) + INTERVAL -1 DAY

For a DATETIME or TIMESTAMP column, we can use >= and < inequality comparisons to specify a range

 WHERE datetimecol >= DATE(NOW()) + INTERVAL -1 DAY
   AND datetimecol <  DATE(NOW()) + INTERVAL  0 DAY

For "last 7 days" we need to know if that mean from this point right now, back 7 days ... e.g. the last 7*24 hours , including the time component in the comparison, ...

 WHERE datetimecol >= NOW() + INTERVAL -7 DAY
   AND datetimecol <  NOW() + INTERVAL  0 DAY

the last seven complete days, not including today

 WHERE datetimecol >= DATE(NOW()) + INTERVAL -7 DAY
   AND datetimecol <  DATE(NOW()) + INTERVAL  0 DAY

or past six complete days plus so far today ...

 WHERE datetimecol >= DATE(NOW()) + INTERVAL -6 DAY
   AND datetimecol <  NOW()       + INTERVAL  0 DAY

I recommend testing the expressions on the right side in a SELECT statement, we can use a user-defined variable in place of NOW() for testing, not being tied to what NOW() returns so we can test borders, across week/month/year boundaries, and so on.

SET @clock = '2017-11-17 11:47:47' ;

SELECT DATE(@clock)
     , DATE(@clock) + INTERVAL -7 DAY 
     , @clock + INTERVAL -6 DAY 

Once we have expressions that return values that work for "start" and "end" for our particular use case, what we mean by "last 7 days", we can use those expressions in range comparisons in the WHERE clause.

(Some developers prefer to use the DATE_ADD and DATE_SUB functions in place of the + INTERVAL val DAY/HOUR/MINUTE/MONTH/YEAR syntax.

And MySQL provides some convenient functions for working with DATE, DATETIME and TIMESTAMP datatypes... DATE, LAST_DAY,

Some developers prefer to calculate the start and end in other code, and supply string literals in the SQL query, such that the query submitted to the database is

  WHERE datetimecol >= '2017-11-10 00:00'
    AND datetimecol <  '2017-11-17 00:00'

And that approach works too. (My preference would be to explicitly cast those string literals into DATETIME, either with CAST, CONVERT or just the + INTERVAL trick...

  WHERE datetimecol >= '2017-11-10 00:00' + INTERVAL 0 SECOND
    AND datetimecol <  '2017-11-17 00:00' + INTERVAL 0 SECOND

The above all assumes we are storing "dates" in appropriate DATE, DATETIME and/or TIMESTAMP datatypes, and not storing them as strings in variety of formats e.g. 'dd/mm/yyyy', m/d/yyyy, julian dates, or in sporadically non-canonical formats, or as a number of seconds since the beginning of the epoch, this answer would need to be much longer.

In my case i have used following code for enabling gzip compression in apache web server.

  # Compress HTML File, CSS File, JavaScript File, Text File, XML File and Fonts
    AddOutputFilterByType DEFLATE text/plain
    AddOutputFilterByType DEFLATE text/html
    AddOutputFilterByType DEFLATE text/xml
    AddOutputFilterByType DEFLATE application/json
    AddOutputFilterByType DEFLATE application/x-httpd-php
    AddOutputFilterByType DEFLATE text/css
    AddOutputFilterByType DEFLATE application/xml
    AddOutputFilterByType DEFLATE application/xhtml+xml
    AddOutputFilterByType DEFLATE application/rss+xml
    AddOutputFilterByType DEFLATE application/javascript
    AddOutputFilterByType DEFLATE application/x-javascript
    AddOutputFilterByType DEFLATE font/otf
    AddOutputFilterByType DEFLATE font/ttf

I have taken reference from http://www.tutsway.com/enable-gzip-compression-using-htacess.php.

Here you can find some useful info about cURL & cookies http://docstore.mik.ua/orelly/webprog/pcook/ch11_04.htm .

You can also use this well done method https://github.com/alixaxel/phunction/blob/master/phunction/Net.php#L89 like a function:

function CURL($url, $data = null, $method = 'GET', $cookie = null, $options = null, $retries = 3)
{
    $result = false;

    if ((extension_loaded('curl') === true) && (is_resource($curl = curl_init()) === true))
    {
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_FAILONERROR, true);
        curl_setopt($curl, CURLOPT_AUTOREFERER, true);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

        if (preg_match('~^(?:DELETE|GET|HEAD|OPTIONS|POST|PUT)$~i', $method) > 0)
        {
            if (preg_match('~^(?:HEAD|OPTIONS)$~i', $method) > 0)
            {
                curl_setopt_array($curl, array(CURLOPT_HEADER => true, CURLOPT_NOBODY => true));
            }

            else if (preg_match('~^(?:POST|PUT)$~i', $method) > 0)
            {
                if (is_array($data) === true)
                {
                    foreach (preg_grep('~^@~', $data) as $key => $value)
                    {
                        $data[$key] = sprintf('@%s', rtrim(str_replace('\\', '/', realpath(ltrim($value, '@'))), '/') . (is_dir(ltrim($value, '@')) ? '/' : ''));
                    }

                    if (count($data) != count($data, COUNT_RECURSIVE))
                    {
                        $data = http_build_query($data, '', '&');
                    }
                }

                curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
            }

            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, strtoupper($method));

            if (isset($cookie) === true)
            {
                curl_setopt_array($curl, array_fill_keys(array(CURLOPT_COOKIEJAR, CURLOPT_COOKIEFILE), strval($cookie)));
            }

            if ((intval(ini_get('safe_mode')) == 0) && (ini_set('open_basedir', null) !== false))
            {
                curl_setopt_array($curl, array(CURLOPT_MAXREDIRS => 5, CURLOPT_FOLLOWLOCATION => true));
            }

            if (is_array($options) === true)
            {
                curl_setopt_array($curl, $options);
            }

            for ($i = 1; $i <= $retries; ++$i)
            {
                $result = curl_exec($curl);

                if (($i == $retries) || ($result !== false))
                {
                    break;
                }

                usleep(pow(2, $i - 2) * 1000000);
            }
        }

        curl_close($curl);
    }

    return $result;
}

And pass this as $cookie parameter:

$cookie_jar = tempnam('/tmp','cookie');

Put the value in the plugin:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.1</version>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
    </configuration>
</plugin>

The error was use:

<source>${java.version}</source>
<target>${java.version}</target>

people.OrderBy(person => person.lastname).ToList();

After searching for a while I realized that this error in my Windows 10 64 bits was related to JavaScript. In order to see this go to your browser DevTools and confirm that first. In my case it shows an error like "MIME type ('application/javascript') is not executable".

If that is the case I've found a solution. Here's the deal:

1. Borrowing user "ilango100" on https://github.com/jupyterlab/jupyterlab/issues/6098:

I had the exact same issue a while ago. I think this issue is specific to Windows. It is due to the wrong MIME type being set in Windows registry for javascript files. I solved the issue by editing the Windows registry with correct content type:

regedit -> HKEY_LOCAL_MACHINE\Software\Classes -> You will see lot of folders for each file extension -> Just scroll down to ".js" registry and select it -> On the right, if the "Content Type" value is other than application/javascript, then this is causing the problem. Right click on Content Type and change the value to application/javascript

enter image description here

Try again in the browser."

After that I've realized that the error changes. It doesn't even open automatically in the browser anymore. PGAdmin, however, will be open on the side bar (close to the calendar/clock). By trying to open in the browser directly ("New PGAdmin 4 window...") it doesn't work either.

FINAL SOLUTION: click on "Copy server URL" and paste it on your browser. It worked for me!

EDIT: Copying server URL might not be necessary, as explained by Eric Mutta in the comment below.

Stack Overflow has solved a similar problem with long lines of code by using a DIV and having overflow-x:auto. CSS can't break up words for you.

If for some reason you can't put your resources files in App_GlobalResources, then you can open resources files directly using ResXResourceReader or an XML Reader.

Here's sample code for using the ResXResourceReader:

   public static string GetResourceString(string ResourceName, string strKey)
   {


       //Figure out the path to where your resource files are located.
       //In this example, I'm figuring out the path to where a SharePoint feature directory is relative to a custom SharePoint layouts subdirectory.  

       string currentDirectory = Path.GetDirectoryName(HttpContext.Current.Server.MapPath(HttpContext.Current.Request.ServerVariables["SCRIPT_NAME"]));

       string featureDirectory = Path.GetFullPath(currentDirectory + "\\..\\..\\..\\FEATURES\\FEATURENAME\\Resources");

       //Look for files containing the name
       List<string> resourceFileNameList = new List<string>();

       DirectoryInfo resourceDir = new DirectoryInfo(featureDirectory);

       var resourceFiles = resourceDir.GetFiles();

       foreach (FileInfo fi in resourceFiles)
       {
           if (fi.Name.Length > ResourceName.Length+1 && fi.Name.ToLower().Substring(0,ResourceName.Length + 1) == ResourceName.ToLower()+".")
           {
               resourceFileNameList.Add(fi.Name);

           }
        }

       if (resourceFileNameList.Count <= 0)
       { return ""; }


       //Get the current culture
       string strCulture = CultureInfo.CurrentCulture.Name;

       string[] cultureStrings = strCulture.Split('-');

       string strLanguageString = cultureStrings[0];


       string strResourceFileName="";
       string strDefaultFileName = resourceFileNameList[0];
       foreach (string resFileName in resourceFileNameList)
       {
           if (resFileName.ToLower() == ResourceName.ToLower() + ".resx")
           {
               strDefaultFileName = resFileName;
           }

           if (resFileName.ToLower() == ResourceName.ToLower() + "."+strCulture.ToLower() + ".resx")
           {
               strResourceFileName = resFileName;
               break;
           }
           else if (resFileName.ToLower() == ResourceName.ToLower() + "." + strLanguageString.ToLower() + ".resx")
           {
               strResourceFileName = resFileName;
               break;
           }
       }

       if (strResourceFileName == "")
       {
           strResourceFileName = strDefaultFileName;
       }



       //Use resx resource reader to read the file in.
       //https://msdn.microsoft.com/en-us/library/system.resources.resxresourcereader.aspx

       ResXResourceReader rsxr = new ResXResourceReader(featureDirectory + "\\"+ strResourceFileName);         

       //IDictionaryEnumerator idenumerator = rsxr.GetEnumerator();
       foreach (DictionaryEntry d in rsxr)
       {
           if (d.Key.ToString().ToLower() == strKey.ToLower())
           {
               return d.Value.ToString();
           }
       }


       return "";
   }

Like Andrew said /exclude parameter of xcopy should be existing file that has list of excludes.

Documentation of xcopy says:

Using /exclude

List each string in a separate line in each file. If any of the listed strings match any part of the absolute path of the file to be copied, that file is then excluded from the copying process. For example, if you specify the string "\Obj\", you exclude all files underneath the Obj directory. If you specify the string ".obj", you exclude all files with the .obj extension.

Example:

xcopy c:\t1 c:\t2 /EXCLUDE:list-of-excluded-files.txt

and list-of-excluded-files.txt should exist in current folder (otherwise pass full path), with listing of files/folders to exclude - one file/folder per line. In your case that would be:

exclusion.txt

Using moment.js UTC method;

const moment = require('moment');
const utc = moment.utc(new Date(string));

Beautify does a good job. It provides a "Beautify on save" option, so that you may use ctrl+s to reformate html, less, css, etc

Go to your Microsoft SDKs directory. A path like this:

C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6 Tools

Open the WCF Configuration Editor (Microsoft Service Configuration Editor) from that directory:

SvcConfigEditor.exe

(another option to open this tool is by navigating in Visual Studio 2017 to "Tools" > "WCF Service Configuration Editor")

Open your .config file or create a new one using the editor and navigate to Diagnostics.

There you can click the "Enable MessageLogging".

More info: https://msdn.microsoft.com/en-us/library/ms732009(v=vs.110).aspx

With the trace viewer from the same directory you can open the trace log files:

SvcTraceViewer.exe

You can also enable tracing using WMI. More info: https://msdn.microsoft.com/en-us/library/ms730064(v=vs.110).aspx

It's as simple as is:

WebView webview = (WebView) findViewById(R.id.webview);
webview.loadUrl("file:///android_asset/some.html");

And your some.html needs to contain something like:

<link rel="stylesheet" type="text/css" href="style.css" />

I am not sure if this fits your oracle version. On my 10g I can use pipelined table functions:

set serveroutput on

create type number_list as table of number;

-- since you want this solution
create or replace function split_csv (i_csv varchar2) return number_list pipelined 
  is 
    mystring varchar2(2000):= i_csv;
  begin
    for r in
    ( select regexp_substr(mystring,'[^,]+',1,level) element
        from dual
     connect by level <= length(regexp_replace(mystring,'[^,]+')) + 1
    )
    loop
      --dbms_output.put_line(r.element);
      pipe row(to_number(r.element, '999999.99'));
    end loop;
  end;
/

insert into foo
select column_a,column_b from 
  (select column_value column_a, rownum rn from table(split_csv('0.75, 0.64, 0.56, 0.45'))) a 
 ,(select column_value column_b, rownum rn from table(split_csv('0.25, 0.5, 0.65, 0.8'))) b
 where a.rn = b.rn
;

To send an email from iPhone application you need to do below list of task.

Step 1: Import #import <MessageUI/MessageUI.h> In your controller class where you want to send an email.

Step 2: Add the delegate to your controller like shown below

 @interface <yourControllerName> : UIViewController <MFMessageComposeViewControllerDelegate, MFMailComposeViewControllerDelegate>

Step 3: Add below method for send email.

 - (void) sendEmail {
 // Check if your app support the email.
 if ([MFMailComposeViewController canSendMail]) {
    // Create an object of mail composer.
    MFMailComposeViewController *mailComposer =      [[MFMailComposeViewController alloc] init];
    // Add delegate to your self.
    mailComposer.mailComposeDelegate = self;
    // Add recipients to mail if you do not want to add default recipient then remove below line.
    [mailComposer setToRecipients:@[<add here your recipient objects>]];
    // Write email subject.
    [mailComposer setSubject:@“<Your Subject Here>”];
    // Set your email body and if body contains HTML then Pass “YES” in isHTML.
    [mailComposer setMessageBody:@“<Your Message Body>” isHTML:NO];
    // Show your mail composer.
    [self presentViewController:mailComposer animated:YES completion:NULL];
 }
 else {
 // Here you can show toast to user about not support to sending email.
}
}

Step 4: Implement MFMailComposeViewController Delegate

- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(nullable NSError *)error {
[controller dismissViewControllerAnimated:TRUE completion:nil];


switch (result) {
   case MFMailComposeResultSaved: {
    // Add code on save mail to draft.
    break;
}
case MFMailComposeResultSent: {
    // Add code on sent a mail.
    break;
}
case MFMailComposeResultCancelled: {
    // Add code on cancel a mail.
    break;
}
case MFMailComposeResultFailed: {
    // Add code on failed to send a mail.
    break;
}
default:
    break;
}
}

The best way is to import the image first and then use it.

import React, { Component } from 'react';
import logo from '../logo.svg';
export default class Header extends Component {
  render() {
    return (
      <div className="row">
        <div className="logo">
          <img src={logo} width="100" height="50" />
        </div>
      </div>
    );
  }
} 

Spring Data is a convenience library on top of JPA that abstracts away many things and brings Spring magic (like it or not) to the persistence store access. It is primarily used for working with relational databases. In short, it allows you to declare interfaces that have methods like findByNameOrderByAge(String name); that will be parsed in runtime and converted into appropriate JPA queries.

Its placement atop of JPA makes its use tempting for:

1. Rookie developers who don't know SQL or know it badly. This is a recipe for disaster but they can get away with it if the project is trivial.

2. Experienced engineers who know what they do and want to spindle up things fast. This might be a viable strategy (but read further).

From my experience with Spring Data, its magic is too much (this is applicable to Spring in general). I started to use it heavily in one project and eventually hit several corner cases where I couldn't get the library out of my way and ended up with ugly workarounds. Later I read other users' complaints and realized that these issues are typical for Spring Data. For example, check this issue that led to hours of investigation/swearing:

 public TourAccommodationRate createTourAccommodationRate(
        @RequestBody TourAccommodationRate tourAccommodationRate
    ) {
        if (tourAccommodationRate.getId() != null) {
            throw new BadRequestException("id MUST NOT be specified in a body during entry creation");
        }

        // This is an ugly hack required for the Room slim model to work. The problem stems from the fact that
        // when we send a child entity having the many-to-many (M:N) relation to the containing entity, its
        // information is not fetched. As a result, we get NPEs when trying to access all but its Id in the
        // code creating the corresponding slim model. By detaching the entity from the persistence context we
        // force the ORM to re-fetch it from the database instead of taking it from the cache

        tourAccommodationRateRepository.save(tourAccommodationRate);
        entityManager.detach(tourAccommodationRate);
        return tourAccommodationRateRepository.findOne(tourAccommodationRate.getId());
    }

I ended up going lower level and started using JDBI - a nice library with just enough "magic" to save you from the boilerplate. With it, you have complete control over SQL queries and almost never have to fight the library.

In terms of how this is implemented, this changes the method - from OrderBy/ThenBy to OrderByDescending/ThenByDescending. However, you can apply the sort separately to the main query...

var qry = from .... // or just dataList.AsEnumerable()/AsQueryable()

if(sortAscending) {
    qry = qry.OrderBy(x=>x.Property);
} else {
    qry = qry.OrderByDescending(x=>x.Property);
}

Any use? You can create the entire "order" dynamically, but it is more involved...

Another trick (mainly appropriate to LINQ-to-Objects) is to use a multiplier, of -1/1. This is only really useful for numeric data, but is a cheeky way of achieving the same outcome.

format(99999999,scientific = F)

gives

99999999

Put that file in assets.

For project created in Android Studio project you need to create assets folder under the main folder.

Read that file as:

public String loadJSONFromAsset(Context context) {
        String json = null;
        try {
            InputStream is = context.getAssets().open("file_name.json");

            int size = is.available();

            byte[] buffer = new byte[size];

            is.read(buffer);

            is.close();

            json = new String(buffer, "UTF-8");


        } catch (IOException ex) {
            ex.printStackTrace();
            return null;
        }
        return json;

    }

and then you can simply read this string return by this function as

JSONObject obj = new JSONObject(json_return_by_the_function);

For further details regarding JSON see http://www.vogella.com/articles/AndroidJSON/article.html

Hope you will get what you want.

A class can be used several times, while an ID can only be used once, so you should use classes for items that you know you're going to use a lot. An example would be if you wanted to give all the paragraphs on your webpage the same styling, you would use classes.

Standards specify that any given ID name can only be referenced once within a page or document. Use IDs when there is only one occurence per page. Use classes when there are one or more occurences per page.

This method is in BalusC's StringUtil class. his blog

i use it very often and will trim any string of any value:

/**
 * Trim the given string with the given trim value.
 * @param string The string to be trimmed.
 * @param trim The value to trim the given string off.
 * @return The trimmed string.
 */
public static String trim(String string, String trim) {
    if (string == null) {
        return null;
    }

    if (trim.length() == 0) {
        return string;
    }

    int start = 0;
    int end = string.length();
    int length = trim.length();

    while (start + length <= end && string.substring(
            start, start + length).equals(trim)) {
        start += length;
    }
    while (start + length <= end && string.substring(
            end - length, end).equals(trim)) {
        end -= length;
    }

    return string.substring(start, end);
}

ex:

trim("1, 2, 3, ", ", ");

You can use

df <- read.csv("filename.csv", header=TRUE)

# To loop each column
for (i in 1:ncol(df))
    {
    dosomething(df[,i])
    }
# To loop each row
for (i in 1:nrow(df))
    {
    dosomething(df[i,])
    }

Also, you may want to have a look to the apply function (type ?apply or help(apply))if you want to use the same function on each row/column

var bordT = $('img').outerWidth() - $('img').innerWidth();
var paddT = $('img').innerWidth() - $('img').width();
var margT = $('img').outerWidth(true) - $('img').outerWidth();

var formattedBord = bordT + 'px';
var formattedPadd = paddT + 'px';
var formattedMarg = margT + 'px';

Check the jQuery API docs for information on each:

• outerWidth
• innerWidth
• width

Here's the edited jsFiddle showing the result.

You can perform the same type of operations for the Height to get its margin, border, and padding.

Short answer:

. is for current directory

.. is for upper directory as in cd .. command on shell.

Simple yet tricky, I write this answer primarily for myself not to forget next time.

ademSite/
+-- index.html
+-- style.css

The link to CSS in index.html:

<link rel="stylesheet" href="style.css"> or <link rel="stylesheet" href="./style.css">

ademSite/
+-- index.html
+-- stylefiles
    +-- style.css

This case it should be:

<link rel="stylesheet" href="stylefiles/style.css"> or <link rel="stylesheet" href="./stylefiles/style.css">

+-- html
¦   +-- index.html
+-- stylefiles
    +-- style.css

In this case path must be: <link rel="stylesheet" href="../stylefiles/style.css">

document.location is an object, not a string. It returns (by default) the full path, but it actually holds more info than that.

Shortcut for solution: document.location.toString().substring(2,3);

Or use document.location.href or window.location.href

The other li elements are not siblings of the a element.

$('#menu li a').on('click', function(){
    $(this).addClass('current').parent().siblings().children().removeClass('current');
}); 

This macro does the whole job.

Sub Absolute_Reference_Copy_Paste()
'By changing "=" in formulas to "#" the content is no longer seen as a formula.
' C+S+e (my keyboard shortcut)

Dim Dummy As Range
Dim FirstSelection As Range
Dim SecondSelection As Range
Dim SheetFirst As Worksheet
Dim SheetSecond As Worksheet

On Error GoTo Whoa

Application.EnableEvents = False

' Set starting selection variable.
Set FirstSelection = Selection
Set SheetFirst = FirstSelection.Worksheet

' Reset the Find function so the scope of the search area is the current worksheet.
Set Dummy = Worksheets(1).Range("A1:A1").Find("Dummy", LookIn:=xlValues)

' Change "=" to "#" in selection.
Selection.Replace What:="=", Replacement:="#", LookAt:=xlPart, _
    SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False

' Select the area you want to paste the formulas; must be same size as original
  selection and outside of the original selection.
Set SecondSelection = Application.InputBox("Select a range", "Obtain Range Object", Type:=8)
Set SheetSecond = SecondSelection.Worksheet

' Copy the original selection and paste it into the newly selected area. The active
  selection remains FirstSelection.
FirstSelection.Copy SecondSelection

' Restore "=" in FirstSelection.
Selection.Replace What:="#", Replacement:="=", LookAt:=xlPart, _
SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False

' Select SecondSelection.
SheetSecond.Activate
SecondSelection.Select

' Restore "=" in SecondSelection.
Selection.Replace What:="#", Replacement:="=", LookAt:=xlPart, _
SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False

' Return active selection to the original area: FirstSelection.
SheetFirst.Activate
FirstSelection.Select

Application.EnableEvents = True

Exit Sub

Whoa:
' If something goes wrong after "=" has been changed in FirstSelection, restore "=".
FirstSelection.Select
Selection.Replace What:="#", Replacement:="=", LookAt:=xlPart, _
    SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False

End Sub

Note that you must match the size and shape of the original selection when you make your new selection.

Lots of answers already exist here! I am answering this question with additional and reliable solutions:

Using PowerManager.WakeLock is not so reliable a solution, as the app requires additional permissions.

<uses-permission android:name="android.permission.WAKE_LOCK" />

Also, if it accidentally remains holding the wake lock, it can leave the screen on.

So, I recommend not using the PowerManager.WakeLock solution. Instead of this, use any of the following solutions:

First:

We can use getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); in onCreate()

@Override
        protected void onCreate(Bundle icicle) {
            super.onCreate(icicle);    
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        }

Second:

we can use keepScreenOn

1. implementation using setKeepScreenOn() in java code:

@Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        View v = getLayoutInflater().inflate(R.layout.driver_home, null);// or any View (incase generated programmatically ) 
        v.setKeepScreenOn(true);
        setContentView(v);
       }

Docs http://developer.android.com/reference/android/view/View.html#setKeepScreenOn(boolean)

2. Adding keepScreenOn to xml layout

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:keepScreenOn="true" >

Docs http://developer.android.com/reference/android/view/View.html#attr_android%3akeepScreenOn

Notes (some useful points):

1. It doesn't matter that keepScreenOn should be used on a Main/Root/Parent View. It can be used with any child view and will work the same way it works in a parent view.
2. The only thing that matters is that the view's visibility must be visible. Otherwise, it will not work!

Here is a solution which:

• Is self contained
• Does not require VBA
• Is not limited in the same way as IF regarding bucket maximums
• Does not require precise values as LOOKUP does

=INDEX({"Small","Medium","Large"},LARGE(IF([INPUT_VALUE]>{0,11,21},{1,2,3}),1))

Replace [INPUT_VALUE] with the appropriate cell reference and make sure to press Ctrl+Shift+Enter as this is an array formula.

Each of the array constants can be expanded to be arbitrarily long; as long as the formula does not exceed Excel's maximum of 8,192 characters. The first constant should contain the return values, the second should contain ordered thresholds,and the third should simply be ascending integers.

You can iterate over the CheckedItems property:

foreach(object itemChecked in checkedListBox1.CheckedItems)
{
    MyCompanyClass company = (MyCompanyClass)itemChecked;    
    MessageBox.Show("ID: \"" + company.ID.ToString());
}

http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.checkeditems.aspx

I think troelskn is close. I would do this instead:

class ClassToTest
{
   protected function testThisMethod()
   {
     // Implement stuff here
   }
}

Then, implement something like this:

class TestClassToTest extends ClassToTest
{
  public function testThisMethod()
  {
    return parent::testThisMethod();
  }
}

You then run your tests against TestClassToTest.

It should be possible to automatically generate such extension classes by parsing the code. I wouldn't be surprised if PHPUnit already offers such a mechanism (though I haven't checked).

The original poster states:

The best answer someone could give me was to use git revert X times until I reach the desired commit.

So let's say I want to revert back to a commit that's 20 commits old, I'd have to run it 20 times.

Is there an easier way to do this?

I can't use reset cause this repo is public.

It's not necessary to use git revert X times. git revert can accept a commit range as an argument, so you only need to use it once to revert a range of commits. For example, if you want to revert the last 20 commits:

git revert --no-edit HEAD~20..

The commit range HEAD~20.. is short for HEAD~20..HEAD, and means "start from the 20^th parent of the HEAD commit, and revert all commits after it up to HEAD".

That will revert that last 20 commits, assuming that none of those are merge commits. If there are merge commits, then you cannot revert them all in one command, you'll need to revert them individually with

git revert -m 1 <merge-commit>

Note also that I've tested using a range with git revert using git version 1.9.0. If you're using an older version of git, using a range with git revert may or may not work.

In this case, git revert is preferred over git checkout.

Note that unlike this answer that says to use git checkout, git revert will actually remove any files that were added in any of the commits that you're reverting, which makes this the correct way to revert a range of revisions.

Documentation

• git-revert(1) Manual Page.
• Commit Ranges.

How about this...

>>> a = range(12)
>>> a
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
>>> a[7]
6

Working with predicate for pretty long time. Here is my conclusion (SWIFT)

//Customizable! (for me was just important if at least one)
request.fetchLimit = 1


//IF IS EQUAL

//1 OBJECT
request.predicate = NSPredicate(format: "name = %@", txtFieldName.text)

//ARRAY
request.predicate = NSPredicate(format: "name = %@ AND nickName = %@", argumentArray: [name, nickname])


// IF CONTAINS

//1 OBJECT
request.predicate = NSPredicate(format: "name contains[c] %@", txtFieldName.text)

//ARRAY
request.predicate = NSPredicate(format: "name contains[c] %@ AND nickName contains[c] %@", argumentArray: [name, nickname])

Better:

if cells(i,1)="" then 
nextEmpty=i: 
exit for

Using double quotes for HTML

i.e.

<div class="colorFont"></div>

Using single quotes for JavaScript

i.e.

$('#container').addClass('colorFont');
$('<div class="colorFont2></div>');

you can do this easily without manual editing or using fancy text editors. Here's a vbscript.

Set objFS = CreateObject("Scripting.FileSystemObject")
strFolder="c:\test"
Set objFolder = objFS.GetFolder(strFolder)
For Each strFile In objFolder.Files
    If objFS.GetExtensionName(strFile) = "jpg" Then    
        strFileName = strFile.Name
        If InStr(strFileName,"Vacation2010") > 0 Then           
            strNewFileName = Replace(strFileName,"Vacation2010","December")
            strFile.Name = strNewFileName
        End If 
    End If  
Next 

save as myscript.vbs and

C:\test> cscript //nologo myscript.vbs 

Googling gives me this:

Command A & Command B

Execute Command A, then execute Command B (no evaluation of anything)

Command A | Command B

Execute Command A, and redirect all its output into the input of Command B

Command A && Command B

Execute Command A, evaluate the errorlevel after running and if the exit code (errorlevel) is 0, only then execute Command B

Command A || Command B

Execute Command A, evaluate the exit code of this command and if it's anything but 0, only then execute Command B

Using KeyGenerator would be the preferred method. As Duncan indicated, I would certainly give the key size during initialization. KeyFactory is a method that should be used for pre-existing keys.

OK, so lets get to the nitty-gritty of this. In principle AES keys can have any value. There are no "weak keys" as in (3)DES. Nor are there any bits that have a specific meaning as in (3)DES parity bits. So generating a key can be as simple as generating a byte array with random values, and creating a SecretKeySpec around it.

But there are still advantages to the method you are using: the KeyGenerator is specifically created to generate keys. This means that the code may be optimized for this generation. This could have efficiency and security benefits. It might be programmed to avoid a timing side channel attacks that would expose the key, for instance. Note that it may already be a good idea to clear any byte[] that hold key information as they may be leaked into a swap file (this may be the case anyway though).

Furthermore, as said, not all algorithms are using fully random keys. So using KeyGenerator would make it easier to switch to other algorithms. More modern ciphers will only accept fully random keys though; this is seen as a major benefit over e.g. DES.

Finally, and in my case the most important reason, it that the KeyGenerator method is the only valid way of handling AES keys within a secure token (smart card, TPM, USB token or HSM). If you create the byte[] with the SecretKeySpec then the key must come from memory. That means that the key may be put in the secure token, but that the key is exposed in memory regardless. Normally, secure tokens only work with keys that are either generated in the secure token or are injected by e.g. a smart card or a key ceremony. A KeyGenerator can be supplied with a provider so that the key is directly generated within the secure token.

As indicated in Duncan's answer: always specify the key size (and any other parameters) explicitly. Do not rely on provider defaults as this will make it unclear what your application is doing, and each provider may have its own defaults.

Strangely, the answer is to keep adding back the property. I was half expecting a setter method. :S

System.out.println("Before: " + obj.get("DebugLogId")); // original "02352"

obj.addProperty("DebugLogId", "YYY");

System.out.println("After: " + obj.get("DebugLogId")); // now "YYY"

A little more than was requsted but I use the extra timer code to track and alert if CPU usage is 90% or higher for a sustained period of 1 minute or longer.

public class Form1
{

    int totalHits = 0;

    public object getCPUCounter()
    {

        PerformanceCounter cpuCounter = new PerformanceCounter();
        cpuCounter.CategoryName = "Processor";
        cpuCounter.CounterName = "% Processor Time";
        cpuCounter.InstanceName = "_Total";

                     // will always start at 0
        dynamic firstValue = cpuCounter.NextValue();
        System.Threading.Thread.Sleep(1000);
                    // now matches task manager reading
        dynamic secondValue = cpuCounter.NextValue();

        return secondValue;

    }


    private void Timer1_Tick(Object sender, EventArgs e)
    {
        int cpuPercent = (int)getCPUCounter();
        if (cpuPercent >= 90)
        {
            totalHits = totalHits + 1;
            if (totalHits == 60)
            {
                Interaction.MsgBox("ALERT 90% usage for 1 minute");
                totalHits = 0;
            }                        
        }
        else
        {
            totalHits = 0;
        }
        Label1.Text = cpuPercent + " % CPU";
        //Label2.Text = getRAMCounter() + " RAM Free";
        Label3.Text = totalHits + " seconds over 20% usage";
    }
}

Yet another Googlemare Landmine.... Somehow, if you mess up, the icon line on your .gen file dies. (Empirical proof of mine after struggling 2 hours)

Insert a new icon 72x72 icon on the hdpi folder with a different name from the original, and update the name on the manifest also.

The icon somehow resurrects on the Gen file and voila!! time to move on.

In case you need a Distinct method on multiple properties, you can check out my PowerfulExtensions library. Currently it's in a very young stage, but already you can use methods like Distinct, Union, Intersect, Except on any number of properties;

This is how you use it:

using PowerfulExtensions.Linq;
...
var distinct = myArray.Distinct(x => x.A, x => x.B);

In case the container is already running:

docker exec -it container_id_or_name ash

Try this:

XmlDocument doc = new XmlDocument();
doc.Load(@"C:\Path\To\Xml\File.xml");

Or alternatively if you have the XML in a string use the LoadXml method.

Once you have it loaded, you can use SelectNodes and SelectSingleNode to query specific values, for example:

XmlNode node = doc.SelectSingleNode("//Company/Email/text()");
// node.Value contains "[email protected]"

Finally, note that your XML is invalid as it doesn't contain a single root node. It must be something like this:

<Data>
    <Employee>
        <Name>Test</Name>
        <ID>123</ID>
    </Employee>
    <Company>
        <Name>ABC</Name>
        <Email>[email protected]</Email>
    </Company>
</Data>