Try this code :

import numpy as np

a1 = np.array([])

n = int(input(""))

for i in range(0,n):
    a = int(input(""))
    a1 = np.append(a, a1)
    a = 0

print(a1)

Also you can use array instead of "a"

for each string in your list, use .strip() which removes whitespace from the beginning or end of the string:

for i in contents:
    alist.append(i.strip())

But depending on your use case, you might be better off using something like numpy.loadtxt or even numpy.genfromtxt if you need a nice array of the data you're reading from the file.

Use Mail::factory in the Mail PEAR package. Example.

+1 on S.Lott's suggestion of a named container class.

For Python 2.6 and up, a named tuple provides a useful way of easily creating these container classes, and the results are "lightweight and require no more memory than regular tuples".

in My project i am getting error int htc device.now this code is universal. I think this is help for you.

    public class CustomContentObserver extends ContentObserver {        
    public CustomContentObserver(Handler handler) {
        super(handler);
        System.out.println("Content obser");
    }     

    public void onChange(boolean selfChange) {
         super.onChange(selfChange);
         String lastCallnumber;

         currentDate = sdfcur.format(calender.getTime());
         System.out.println("Content obser onChange()");
         Log.d("PhoneService", "custom StringsContentObserver.onChange( " + selfChange + ")");
        //if(!callFlag){                   
         String[] projection = new String[]{CallLog.Calls.NUMBER,
                    CallLog.Calls.TYPE,
                    CallLog.Calls.DURATION,
                    CallLog.Calls.CACHED_NAME,
                    CallLog.Calls._ID};

            Cursor c;   
            c=mContext.getContentResolver().query(CallLog.Calls.CONTENT_URI, projection, null, null, CallLog.Calls._ID + " DESC");
            if(c.getCount()!=0){
                c.moveToFirst();
                 lastCallnumber = c.getString(0);
                 String type=c.getString(1);
                 String duration=c.getString(2);
                 String name=c.getString(3);
                 String id=c.getString(4);
                 System.out.println("CALLLLing:"+lastCallnumber+"Type:"+type);

                 Database db=new Database(mContext);
                 Cursor cur =db.getFirstRecord(lastCallnumber);
                 final String endCall=lastCallnumber;
                 //checking incoming/outgoing call
                 if(type.equals("3")){
                    //missed call
                    }else if(type.equals("1")){
                    //incoming call

                 }else if(type.equals("2")){
                    //outgoing call
                 }                  

            }
            c.close();
    }

}

Extension to parse decimal number from string.

• No matter number will be on the beginning, in the end, or in the middle of a string.
• No matter if there will be only number or lot of "garbage" letters.
• No matter what is delimiter configured in the cultural settings on the PC: it will parse dot and comma both correctly.

• Ability to set decimal symbol manually.

  public static class StringExtension
  {
      public static double DoubleParseAdvanced(this string strToParse, char decimalSymbol = ',')
      {
          string tmp = Regex.Match(strToParse, @"([-]?[0-9]+)([\s])?([0-9]+)?[." + decimalSymbol + "]?([0-9 ]+)?([0-9]+)?").Value;
  
          if (tmp.Length > 0 && strToParse.Contains(tmp))
          {
              var currDecSeparator = System.Windows.Forms.Application.CurrentCulture.NumberFormat.NumberDecimalSeparator;
  
              tmp = tmp.Replace(".", currDecSeparator).Replace(decimalSymbol.ToString(), currDecSeparator);
  
              return double.Parse(tmp);
          }
  
          return 0;
      }
  }
  

How to use:

"It's 4.45 O'clock now".DoubleParseAdvanced(); // will return 4.45
"It's 4,45 O'clock now".DoubleParseAdvanced(); // will return 4.45
"It's 4:45 O'clock now".DoubleParseAdvanced(':'); // will return 4.45

Firstly, it will help if you set the headers of your PHP to serve JSON:

header('Content-type: application/json');

Secondly, it will help to adjust your ajax call:

$.ajax({
    url: "main.php",
    type: "POST",
    dataType: "json",
    data: {"action": "loadall", "id": id},
    success: function(data){
        console.log(data);
    },
    error: function(error){
         console.log("Error:");
         console.log(error);
    }
});

If successful, the response you receieve should be picked up as true JSON and an object should be logged to console.

NOTE: If you want to pick up pure html, you might want to consider using another method to JSON, but I personally recommend using JSON and rendering it into html using templates (such as Handlebars js).

For Ubuntu/Debian OS,

apt-get install -y pkg-config

For Redhat/Yum OS,

yum install -y pkgconfig

For Archlinux OS,

pacman -S pkgconf

Simple:

[1,2,3].map(x => [x, x * 10])
// [[1, 10], [2, 20], [3, 30]]

[1,2,3].flatMap(x => [x, x * 10])
// [1, 10, 2, 20, 3, 30]]

I'm surprised nobody has mentioned the new Fetch API, supported by all browsers except IE11 at the time of writing. It simplifies the XMLHttpRequest syntax you see in many of the other examples.

The API includes a lot more, but start with the fetch() method. It takes two arguments:

1. A URL or an object representing the request.
2. Optional init object containing the method, headers, body etc.

Simple GET:

const userAction = async () => {
  const response = await fetch('http://example.com/movies.json');
  const myJson = await response.json(); //extract JSON from the http response
  // do something with myJson
}

Recreating the previous top answer, a POST:

const userAction = async () => {
  const response = await fetch('http://example.com/movies.json', {
    method: 'POST',
    body: myBody, // string or object
    headers: {
      'Content-Type': 'application/json'
    }
  });
  const myJson = await response.json(); //extract JSON from the http response
  // do something with myJson
}

Below is a very simple Java solution which supports the push operation efficient.

Algorithm -

1. Declare two Queues q1 and q2.

2. Push operation - Enqueue element to queue q1.

3. Pop operation - Ensure that queue q2 is not empty. If it is empty, then dequeue all the elements from q1 except the last element and enqueue it to q2 one by one. Dequeue the last element from q1 and store it as the popped element. Swap the queues q1 and q2. Return the stored popped element.

4. Peek operation - Ensure that queue q2 is not empty. If it is empty, then dequeue all the elements from q1 except the last element and enqueue it to q2 one by one. Dequeue the last element from q1 and store it as the peeked element. Enqueue it back to queue q2 and swap the queues q1 and q2. Return the stored peeked element.

Below is the code for above algorithm -

class MyStack {

    java.util.Queue<Integer> q1;
    java.util.Queue<Integer> q2;
    int SIZE = 0;

    /** Initialize your data structure here. */
    public MyStack() {
        q1 = new LinkedList<Integer>();
        q2 = new LinkedList<Integer>();

    }

    /** Push element x onto stack. */
    public void push(int x) {
        q1.add(x);
        SIZE ++;

    }

    /** Removes the element on top of the stack and returns that element. */
    public int pop() {
        ensureQ2IsNotEmpty();
        int poppedEle = q1.remove();
        SIZE--;
        swapQueues();
        return poppedEle;
    }

    /** Get the top element. */
    public int top() {
        ensureQ2IsNotEmpty();
        int peekedEle = q1.remove();
        q2.add(peekedEle);
        swapQueues();
        return peekedEle;
    }

    /** Returns whether the stack is empty. */
    public boolean empty() {
        return q1.isEmpty() && q2.isEmpty();

    }

    /** move all elements from q1 to q2 except last element */
    public void ensureQ2IsNotEmpty() {
        for(int i=0; i<SIZE-1; i++) {
            q2.add(q1.remove());
        }
    }

    /** Swap queues q1 and q2 */
    public void swapQueues() {
        Queue<Integer> temp = q1;
        q1 = q2;
        q2 = temp;
    }
}

Here, I summarize a few ways which may return different results to your question, so be careful:

# First assign your "id"s to an R object.
# Here's a hypothetical example:
id <- c("a","b","b","c","c","c","d","d","d","d")

#To return ALL MINUS ONE duplicated values:
id[duplicated(id)]
## [1] "b" "c" "c" "d" "d" "d"

#To return ALL duplicated values by specifying fromLast argument:
id[duplicated(id) | duplicated(id, fromLast=TRUE)]
## [1] "b" "b" "c" "c" "c" "d" "d" "d" "d"

#Yet another way to return ALL duplicated values, using %in% operator:
id[ id %in% id[duplicated(id)] ]
## [1] "b" "b" "c" "c" "c" "d" "d" "d" "d"

Hope these help. Good luck.

if (!$("#checkSurfaceEnvironment-1").is(":checked")) {
    // do something if the checkbox is NOT checked
}

os.Executable: https://tip.golang.org/pkg/os/#Executable

filepath.EvalSymlinks: https://golang.org/pkg/path/filepath/#EvalSymlinks

Full Demo:

package main

import (
    "fmt"
    "os"
    "path/filepath"
)

func main() {
    var dirAbsPath string
    ex, err := os.Executable()
    if err == nil {
        dirAbsPath = filepath.Dir(ex)
        fmt.Println(dirAbsPath)
        return
    }

    exReal, err := filepath.EvalSymlinks(ex)
    if err != nil {
        panic(err)
    }
    dirAbsPath = filepath.Dir(exReal)
    fmt.Println(dirAbsPath)
}

No, you can't instantite an abstract class.We instantiate only anonymous class.In abstract class we declare abstract methods and define concrete methods only.

Maybe by manually appending the dir inside the PYTHONPATH?

sys.path.append(dirname)

I tried all the things specified here and found yet another answer. I had to compile my application with 32-bit DLLs. I had built the libraries both in 32-bit and 64-bit but had my PATH set to 64-bit libraries. After I recompiled my application (with a number of changes in my code as well) I got this dreaded error and struggled for two days. Finally, after trying a number of other things, I changed my PATH to have the 32-bit DLLs before the 64-bit DLLs (they have the same names). And it worked. I am just adding it here for completeness.

I'm not familiar with resolve, but I've used the others:

Recursive

Recursive is the default for non-fast-forward merges. We're all familiar with that one.

Octopus

I've used octopus when I've had several trees that needed to be merged. You see this in larger projects where many branches have had independent development and it's all ready to come together into a single head.

An octopus branch merges multiple heads in one commit as long as it can do it cleanly.

For illustration, imagine you have a project that has a master, and then three branches to merge in (call them a, b, and c).

A series of recursive merges would look like this (note that the first merge was a fast-forward, as I didn't force recursion):

However, a single octopus merge would look like this:

commit ae632e99ba0ccd0e9e06d09e8647659220d043b9
Merge: f51262e... c9ce629... aa0f25d...

Ours

Ours == I want to pull in another head, but throw away all of the changes that head introduces.

This keeps the history of a branch without any of the effects of the branch.

(Read: It is not even looked at the changes between those branches. The branches are just merged and nothing is done to the files. If you want to merge in the other branch and every time there is the question "our file version or their version" you can use git merge -X ours)

Subtree

Subtree is useful when you want to merge in another project into a subdirectory of your current project. Useful when you have a library you don't want to include as a submodule.

In my case, it was the open_basedir which was defined. I commented it out (default) and my issue was resolved. I can now set the upload directory anywhere.

Extracts myArchive.tar to /destinationDirectory

Commands:

cd /destinationDirectory
pax -rv -f myArchive.tar -s ',^/,,'

I would start with upgrade of CMAKE version.

You can use INCLUDE_DIRECTORIES for header location and LINK_DIRECTORIES + TARGET_LINK_LIBRARIES for libraries

INCLUDE_DIRECTORIES(your/header/dir)
LINK_DIRECTORIES(your/library/dir)
rosbuild_add_executable(kinectueye src/kinect_ueye.cpp)
TARGET_LINK_LIBRARIES(kinectueye lib1 lib2 lib2 ...)

note that lib1 is expanded to liblib1.so (on Linux), so use ln to create appropriate links in case you do not have them

The backgroundTint attribute will help you to add a tint(shade) to the background. You can provide a color value for the same in the form of - "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

The backgroundTintMode on the other hand will help you to apply the background tint. It must have constant values like src_over, src_in, src_atop, etc.

Refer this to get a clear idea of the the constant values that can be used. Search for the backgroundTint attribute and the description along with various attributes will be available.

You have to perform following steps to do this, which are as follows

• Map your domain upto public folder of your project (i.e. /var/www/html/yourproject/public) (if using linux)

• Go to your public folder edit your .htaccess file there

AddHandler application/x-httpd-php72 .php
<IfModule mod_rewrite.c>
    <IfModule mod_negotiation.c>
        Options -MultiViews -Indexes
    </IfModule>

    RewriteEngine On

    # Handle Authorization Header
    RewriteCond %{HTTP:Authorization} .
    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

    # Redirect non-www to www
    RewriteCond %{HTTP_HOST} !^www\.
    RewriteRule .* https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

    # Redirect non-http to https
    RewriteCond %{HTTPS} off
    RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

    # Redirect Trailing Slashes If Not A Folder...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_URI} (.+)/$
    RewriteRule ^ %1 [L,R=301]

    # Handle Front Controller...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^ index.php [L]

    # Remove index.php
    RewriteCond %{THE_REQUEST} ^GET.*index\.php [NC]
    RewriteRule (.*?)index\.php/*(.*) /$1$2 [R=301,NE,L]
</IfModule>

• The last three rules are for if you are directly accessing any route without https, it protect that.

A = {1,5,3,4,6,7,9,8} B = {2,8,5,4,3,6,9}

cross join act as Cartesian product A ? B = {1,2}, {1,8}...,{5,2}, {5,8},{5,5}.....{3,3}...,{6,6}....{8,9} and returned this long result set..

when processing inner join its done through Cartesian product and choose matching pairs.. if think this ordered pairs as two table's primary keys and on clause search for A = B then inner join choose {5,5}, {4,4}, {6,6}, {9,9} and returned asked column in select clause related to these id's.

if cross join on a = b then it's result same result set as inner join. in that case also use inner join.

You can use this jQuery function instead of plus Bootstrap tooltip

function DDLSToolTipping(ddlsArray) {
    $(ddlsArray).each(function (index, ddl) {
        DDLToolTipping(ddl)
    });
}

function DDLToolTipping(ddlID, maxLength, allowDots) {
    if (maxLength == null) { maxLength = 12 }
    if (allowDots == null) { allowDots = true }

    var selectedOption = $(ddlID).find('option:selected').text();

    if (selectedOption.length > maxLength) {
        $(ddlID).attr('data-toggle', "tooltip")
                .attr('title', selectedOption);

        if (allowDots) {
            $(ddlID).prev('sup').remove();
            $(ddlID).before(
            "<sup style='font-size: 9.5pt;position: relative;top: -1px;left: -17px;z-index: 1000;background-color: #f7f7f7;border-radius: 229px;font-weight: bold;color: #666;'>...</sup>"
               )
        }
    }

    else if ($(ddlID).attr('title') != null) {
        $(ddlID).removeAttr('data-toggle')
                .removeAttr('title');
    }
}

I have not spent the time to make 100% certain, but it worked for my inputs enough to be accepted by online JSON validators:

org.apache.velocity.tools.generic.EscapeTool.EscapeTool().java("input")

although it does not look any better than org.codehaus.jettison.json.JSONObject.quote("your string")

I simply use velocity tools in my project already - my "manual JSON" building was within a velocity template

set Text box Border style to None then write this code to container form "paint" event

private void Form1_Paint(object sender, PaintEventArgs e)
{
    System.Drawing.Rectangle rect = new Rectangle(TextBox1.Location.X, 
    TextBox1.Location.Y, TextBox1.ClientSize.Width, TextBox1.ClientSize.Height);
                
                rect.Inflate(1, 1); // border thickness
                System.Windows.Forms.ControlPaint.DrawBorder(e.Graphics, rect, 
    Color.DeepSkyBlue, ButtonBorderStyle.Solid);
}

string a = "", b = a , c = a, d = a, e = a, f =a;

You must close the project, hover over the project in the welcome screen, then press the delete button.

Using attr() pointing to an external domain may trigger an error like this in Chrome: "Refused to display document because display forbidden by X-Frame-Options". The workaround to this can be to move the whole iframe HTML code into the script (eg. using .html() in jQuery).

Example:

var divMapLoaded = false;
$("#container").scroll(function() {
    if ((!divMapLoaded) && ($("#map").position().left <= $("#map").width())) {
    $("#map-iframe").html("<iframe id=\"map-iframe\" " +
        "width=\"100%\" height=\"100%\" frameborder=\"0\" scrolling=\"no\" " +
        "marginheight=\"0\" marginwidth=\"0\" " +
        "src=\"http://www.google.it/maps?t=m&amp;cid=0x3e589d98063177ab&amp;ie=UTF8&amp;iwloc=A&amp;brcurrent=5,0,1&amp;ll=41.123115,16.853177&amp;spn=0.005617,0.009943&amp;output=embed\"" +
        "></iframe>");
    divMapLoaded = true;
}

Ok, I feel a bit stupid here... what's the reason not to just do it with something like
[(a+1,b) for (a,b) in enumerate(r)] ? If you won't function, no problem either:

>>> r = range(2000, 2005)
>>> [(a+1,b) for (a,b) in enumerate(r)]
[(1, 2000), (2, 2001), (3, 2002), (4, 2003), (5, 2004)]

>>> enumerate1 = lambda r:((a+1,b) for (a,b) in enumerate(r)) 

>>> list(enumerate1(range(2000,2005)))   # note - generator just like original enumerate()
[(1, 2000), (2, 2001), (3, 2002), (4, 2003), (5, 2004)]

if you are overriding onMeasure, don't forget to update the new sizes

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    setMeasuredDimension(newWidth, newHeight);
}

Update your remote if you still haven't done so:

$ git remote update
$ git branch -r

Have you tried Convert.ChangeType?

If the method always returns a string, which I find odd, but that's besides the point, then perhaps this changed code would do what you want:

private static T ReadData<T>(XmlReader reader, string value)
{
    reader.MoveToAttribute(value);
    object readData = reader.ReadContentAsObject();
    return (T)Convert.ChangeType(readData, typeof(T));
}

Without telling us what language this dll/assembly is from, we can only guess.

So how about .NET Reflector

For anybody else stumbling over this, the same happened to me while trying to send a SOAP request header to a SOAP service. The issue was a wrong order in the code, I requested the input stream first before sending the XML body. In the code snipped below, the line InputStream in = conn.getInputStream(); came immediately after ByteArrayOutputStream out = new ByteArrayOutputStream(); which is the incorrect order of things.

ByteArrayOutputStream out = new ByteArrayOutputStream();
// send SOAP request as part of HTTP body 
byte[] data = request.getHttpBody().getBytes("UTF-8");
conn.getOutputStream().write(data); 

if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
  Log.d(TAG, "http response code is " + conn.getResponseCode());
  return null;
}

InputStream in = conn.getInputStream();

FileNotFound in this case was an unfortunate way to encode HTTP response code 400.

Use:

$ dos2unix file
$ grep -v "^$" file

Or just simply awk:

awk 'NF' file

If you don't have dos2unix, then you can use tools like tr:

tr -d '\r' < "$file" > t ; mv t "$file"

Why not just return the worksheet name with address = cell.Worksheet.Name then you can concatenate the address back on like this address = cell.Worksheet.Name & "!" & cell.Address

_.map using lodash like loop to achieve this

 var result={};
_.map({one: 1, two: 2, three: 3}, function(num, key){ result[key]=num * 3; });
console.log(result)

//output
{one: 1, two: 2, three: 3}

Reduce is clever looks like above answare

_.reduce({one: 1, two: 2, three: 3}, function(result, num, key) {
  result[key]=num * 3
  return result;
}, {});

//output
{one: 1, two: 2, three: 3}

You can actually grab the value straight from the event. Its a bit obtuse how to get to it though.

Return false if you don't want it to go through.

$(this).on('paste', function(e) {

  var pasteData = e.originalEvent.clipboardData.getData('text')

});

skip` didn't work, so my workaround is

$LinesCount = $(get-content $file).Count
get-content $file |
    select -Last $($LinesCount-1) | 
    set-content "$file-temp"
move "$file-temp" $file -Force

The With clause would do the trick. Something like this:

WITH SELECTION AS (SELECT id FROM products LIMIT 1)
SELECT a.id, c.id, c.title FROM selection a JOIN categories c ON (c.id = a.id);

Here i Convert "Joris416" Swift Code to Objective-c,

-(void) popoverstart
{
    ViewController *controller = [self.storyboard instantiateViewControllerWithIdentifier:@"PopoverView"];
    UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:controller];
    nav.modalPresentationStyle = UIModalPresentationPopover;
    UIPopoverPresentationController *popover = nav.popoverPresentationController;
    controller.preferredContentSize = CGSizeMake(300, 200);
    popover.delegate = self;
    popover.sourceView = self.view;
    popover.sourceRect = CGRectMake(100, 100, 0, 0);
    popover.permittedArrowDirections = UIPopoverArrowDirectionAny;
    [self presentViewController:nav animated:YES completion:nil];
}

-(UIModalPresentationStyle) adaptivePresentationStyleForPresentationController: (UIPresentationController * ) controller
{
    return UIModalPresentationNone;
}

Remember to ADD
UIPopoverPresentationControllerDelegate, UIAdaptivePresentationControllerDelegate

Here is a theoretical answer. That can be found here

A { get set } property cannot be a constant stored property. It should be a computed property and both get and set should be implemented.

You can add a new series, and name it at the same time. The name will be the index of the new row, and all the values will automatically be NaN.

df.append(pd.Series(name='Afterthought'))

I generally create a "run tests" script in the project directory (the one that is common to both the source directory and test) that loads my "All Tests" suite. This is usually boilerplate code, so I can reuse it from project to project.

run_tests.py:

import unittest
import test.all_tests
testSuite = test.all_tests.create_test_suite()
text_runner = unittest.TextTestRunner().run(testSuite)

test/all_tests.py (from How do I run all Python unit tests in a directory?)

import glob
import unittest

def create_test_suite():
    test_file_strings = glob.glob('test/test_*.py')
    module_strings = ['test.'+str[5:len(str)-3] for str in test_file_strings]
    suites = [unittest.defaultTestLoader.loadTestsFromName(name) \
              for name in module_strings]
    testSuite = unittest.TestSuite(suites)
    return testSuite

With this setup, you can indeed just include antigravity in your test modules. The downside is you would need more support code to execute a particular test... I just run them all every time.

The following rather compact solution uses the PCRE positive lookahead assertion to match the last occurrence of the substring of interest, that is, an occurrence of the substring which is not followed by any other occurrences of the same substring. Thus the example replaces the last 'fox' with 'dog'.

$string = 'The quick brown fox, fox, fox jumps over the lazy fox!!!';
echo preg_replace('/(fox(?!.*fox))/', 'dog', $string);

OUTPUT: 

The quick brown fox, fox, fox jumps over the lazy dog!!!

Recursion in Python works just as recursion in an other language, with the recursive construct defined in terms of itself:

For example a recursive class could be a binary tree (or any tree):

class tree():
    def __init__(self):
        '''Initialise the tree'''
        self.Data = None
        self.Count = 0
        self.LeftSubtree = None
        self.RightSubtree = None

    def Insert(self, data):
        '''Add an item of data to the tree'''
        if self.Data == None:
            self.Data = data
            self.Count += 1
        elif data < self.Data:
            if self.LeftSubtree == None:
                # tree is a recurive class definition
                self.LeftSubtree = tree()
            # Insert is a recursive function
            self.LeftSubtree.Insert(data)
        elif data == self.Data:
            self.Count += 1
        elif data > self.Data:
            if self.RightSubtree == None:
                self.RightSubtree = tree()
            self.RightSubtree.Insert(data)

if __name__ == '__main__':
    T = tree()
    # The root node
    T.Insert('b')
    # Will be put into the left subtree
    T.Insert('a')
    # Will be put into the right subtree
    T.Insert('c')

As already mentioned a recursive structure must have a termination condition. In this class, it is not so obvious because it only recurses if new elements are added, and only does it a single time extra.

Also worth noting, python by default has a limit to the depth of recursion available, to avoid absorbing all of the computer's memory. On my computer this is 1000. I don't know if this changes depending on hardware, etc. To see yours :

import sys
sys.getrecursionlimit()

and to set it :

import sys #(if you haven't already)
sys.setrecursionlimit()

edit: I can't guarentee that my binary tree is the most efficient design ever. If anyone can improve it, I'd be happy to hear how

It depends. How critical is the content you are streaming? If critical use TCP. This may cause issues in bandwidth, video quality (you might have to use a lower quality to deal with latency), and latency. But if you need the content to guaranteed get there, use it.

Otherwise UDP should be fine if the stream is not critical and would be preferred because UDP tends to have less overhead.

To change it permanently in Windows (10), edit the my.ini file. To find the my.ini file, look at the path in the Windows server. E.g. for my MySQL 5.7 instance, the service is MYSQL57, and in this service's properties the Path to executable is:

"C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe" --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" MySQL57

I.e. edit the my.ini file in C:\ProgramData\MySQL\MySQL Server 5.7\. Note that C:\ProgramData\ is a hidden folder in Windows (10). My file has the following lines of interest:

# Set the SQL mode to strict
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

Remove STRICT_TRANS_TABLES, from this sql-mode line, save the file and restart the MYSQL57 service. Verify the result by executing SHOW VARIABLES LIKE 'sql_mode'; in a (new) MySQL Command Line Client window.

(I found the other answers and documents on the web useful, but none of them seem to tell you where to find the my.ini file in Windows.)

IntelliJ just inserts them automagically; no shortcut required. If the class name is ambiguous, it'll show me the list of possibilities to choose from. It reads my mind....

Things have changed a lot in the last 7 years, we have native web components in most browsers now. IMO the core of the problem is sharing state between elements, once you have that its trivial to update the ui when state changes and vice versa.

To share data between elements you can create a StateObserver class, and extend your web components from that. A minimal implementation looks something like this:

// create a base class to handle state_x000D_
class StateObserver extends HTMLElement {_x000D_
 constructor () {_x000D_
   super()_x000D_
    StateObserver.instances.push(this)_x000D_
  }_x000D_
 stateUpdate (update) {_x000D_
   StateObserver.lastState = StateObserver.state_x000D_
    StateObserver.state = update_x000D_
    StateObserver.instances.forEach((i) => {_x000D_
     if (!i.onStateUpdate) return_x000D_
     i.onStateUpdate(update, StateObserver.lastState)_x000D_
    })_x000D_
  }_x000D_
}_x000D_
_x000D_
StateObserver.instances = []_x000D_
StateObserver.state = {}_x000D_
StateObserver.lastState = {}_x000D_
_x000D_
// create a web component which will react to state changes_x000D_
class CustomReactive extends StateObserver {_x000D_
 onStateUpdate (state, lastState) {_x000D_
   if (state.someProp === lastState.someProp) return_x000D_
    this.innerHTML = `input is: ${state.someProp}`_x000D_
  }_x000D_
}_x000D_
customElements.define('custom-reactive', CustomReactive)_x000D_
_x000D_
class CustomObserved extends StateObserver {_x000D_
 connectedCallback () {_x000D_
   this.querySelector('input').addEventListener('input', (e) => {_x000D_
     this.stateUpdate({ someProp: e.target.value })_x000D_
    })_x000D_
  }_x000D_
}_x000D_
customElements.define('custom-observed', CustomObserved)

<custom-observed>_x000D_
  <input>_x000D_
</custom-observed>_x000D_
<br />_x000D_
<custom-reactive></custom-reactive>

fiddle here

I like this approach because:

• no dom traversal to find data- properties
• no Object.observe (deprecated)
• no Proxy (which provides a hook but no communication mechanism anyway)
• no dependencies, (other than a polyfill depending on your target browsers)
• it's reasonably centralised & modular... describing state in html, and having listeners everywhere would get messy very quickly.
• it's extensible. This basic implementation is 20 lines of code, but you could easily build up some convenience, immutability, and state shape magic to make it easier to work with.

When we use lazy-init="default" as an attribute in element, the container picks up the value specified by default-lazy-init="true|false" attribute of element and uses it as lazy-init="true|false".

If default-lazy-init attribute is not present in element than lazy-init="default" in element will behave as if lazy-init-"false".

C++11 FAQ mentions below points:

conventional enums implicitly convert to int, causing errors when someone does not want an enumeration to act as an integer.

enum color
{
    Red,
    Green,
    Yellow
};

enum class NewColor
{
    Red_1,
    Green_1,
    Yellow_1
};

int main()
{
    //! Implicit conversion is possible
    int i = Red;

    //! Need enum class name followed by access specifier. Ex: NewColor::Red_1
    int j = Red_1; // error C2065: 'Red_1': undeclared identifier

    //! Implicit converison is not possible. Solution Ex: int k = (int)NewColor::Red_1;
    int k = NewColor::Red_1; // error C2440: 'initializing': cannot convert from 'NewColor' to 'int'

    return 0;
}

conventional enums export their enumerators to the surrounding scope, causing name clashes.

// Header.h

enum vehicle
{
    Car,
    Bus,
    Bike,
    Autorickshow
};

enum FourWheeler
{
    Car,        // error C2365: 'Car': redefinition; previous definition was 'enumerator'
    SmallBus
};

enum class Editor
{
    vim,
    eclipes,
    VisualStudio
};

enum class CppEditor
{
    eclipes,       // No error of redefinitions
    VisualStudio,  // No error of redefinitions
    QtCreator
};

The underlying type of an enum cannot be specified, causing confusion, compatibility problems, and makes forward declaration impossible.

// Header1.h
#include <iostream>

using namespace std;

enum class Port : unsigned char; // Forward declare

class MyClass
{
public:
    void PrintPort(enum class Port p);
};

void MyClass::PrintPort(enum class Port p)
{
    cout << (int)p << endl;
}

.

// Header.h
enum class Port : unsigned char // Declare enum type explicitly
{
    PORT_1 = 0x01,
    PORT_2 = 0x02,
    PORT_3 = 0x04
};

.

// Source.cpp
#include "Header1.h"
#include "Header.h"

using namespace std;
int main()
{
    MyClass m;
    m.PrintPort(Port::PORT_1);

    return 0;
}

Other answers are doing a good job of summarizing the requirements of main. I want to gather references to where those requirements are documented.

The most authoritative source is the VM spec (second edition cited). As main is not a language feature, it is not considered in the Java Language Specification.

• 2.17.1 Execution - Virtual Machine Start-up
• 5.2 Virtual Machine Start-up

Another good resource is the documentation for the application launcher itself:

• java - the Java application launcher

You can use some different schemes for that. I've always tested for arguments.length:

function myFunc(requiredArg, optionalArg){
  optionalArg = myFunc.arguments.length<2 ? 'defaultValue' : optionalArg;

  ...

-- doing so, it can't possibly fail, but I don't know if your way has any chance of failing, just now I can't think up a scenario, where it actually would fail ...

And then Paul provided one failing scenario !-)

I had the same problem. I was running out of space.

Deleting old device simulators did NOT help.

My space issue was caused by xCode. It kept a copy of every iOS version on my macOS since I had installed xCode.

Delete the iOS version you don't want and free up disk space. I saved 50GB+ of space.

NOTE -> can't you see ~/Library inside Finder? It is hidden by default. Use Terminal and type cd ~/Library/Developer/Xcode/iOS\ DeviceSupport/ or google how to see hidden folders.

NOTE -> if you have multiple users on a single macOS machine, make sure to find the directory ONLY with the user account that originally installed xCode.

I've just found this solution:

if(@getimagesize($remoteImageURL)){
    //image exists!
}else{
    //image does not exist.
}

Source: http://www.dreamincode.net/forums/topic/11197-checking-if-file-exists-on-remote-server/

United Kingdom Phone Formats

For the application I developed, I found that people entered their phone number 'correctly' from a human readable form, but inserted varous random characters such as '-' '/' '+44' etc. The problem was that the cloud app that it needed to talk to was quite specific about the format. Rather than use a regular expression (can be frustrating for the user) I created an object class which processes the entered number into the correct format before being processed by the persistence module.

The format of the output ensures that any receiving software interprets the output as text rather than an integer (which would then immediately lose the leading zero) and the format is consistent with British Telecoms guidelines on number formatting - which also aids human memorability by dividing a long number into small, easily memorised, groups.

+441234567890 produces (01234) 567 890
02012345678 produces (020) 1234 5678
1923123456 produces (01923) 123 456
01923123456 produces (01923) 123 456
01923hello this is text123456 produces (01923) 123 456

The significance of the exchange segment of the number - in parentheses - is that in the UK, and most other countries, calls between numbers in the same exchange can be made omitting the exchange segment. This does not apply to 07, 08 and 09 series phone numbers however.

I'm sure that there are more efficient solutions, but this one has proved extremely reliable. More formats can easily be accomodated by adding to the teleNum function at the end.

The procedure is invoked from the calling script thus

$telephone = New Telephone;
$formattedPhoneNumber = $telephone->toIntegerForm($num)

`

<?php
class   Telephone 
{   
    public function toIntegerForm($num) {
        /*
         * This section takes the number, whatever its format, and purifies it to just digits without any space or other characters
         * This ensures that the formatter only has one type of input to deal with
         */
        $number = str_replace('+44', '0', $num);
        $length = strlen($number);
        $digits = '';
        $i=0;
        while ($i<$length){
            $digits .= $this->first( substr($number,$i,1) , $i);
            $i++;
        }
        if (strlen($number)<10) {return '';}
        return $this->toTextForm($digits);
    }
    public function toTextForm($number) {

        /*
         * This works on the purified number to then format it according to the group code
         * Numbers starting 01 and 07 are grouped 5 3 3
         * Other numbers are grouped 3 4 4 
         * 
         */
        if (substr($number,0,1) == '+') { return $number; }
        $group = substr($number,0,2);
        switch ($group){
            case "02" :
                $formattedNumber = $this->teleNum($number, 3, 4); // If number commences '02N' then output will be (02N) NNNN NNNN
                break;
            default :
                $formattedNumber = $this->teleNum($number, 5, 3); // Otherwise the ooutput will be (0NNNN) NNN NNN
        }
        return $formattedNumber;

    }
    private function first($digit,$position){
        if ($digit == '+' && $position == 0) {return $digit;};
        if (!is_numeric($digit)){
            return '';
        }
        if ($position == 0) {
            return ($digit == '0' ) ? $digit :  '0'.$digit;
        } else {
            return $digit;
        } 
    }
    private function teleNum($number,$a,$b){
        /*
         * Formats the required output 
         */
        $c=strlen($number)-($a+$b);
        $bit1 = substr($number,0,$a);
        $bit2 = substr($number,$a,$b);
        $bit3 = substr($number,$a+$b,$c);
        return '('.$bit1.') '.$bit2." ".$bit3;
    }
}

pgrep -q some_process && echo 1 || echo 0

more oneliners here

To do this with multiple images you need to run though an .each() function. This works but I'm not sure how efficient it is.

$('img').hide();
$('img').each( function(){
    $(this).on('load', function () {
        $(this).fadeIn();
    });
});

Use the Following code to remove all subviews.

for (UIView *view in [self.view subviews]) 
{
 [view removeFromSuperview];
}

What is the difference between them?

Image: the generic Linux kernel binary image file.

zImage: a compressed version of the Linux kernel image that is self-extracting.

uImage: an image file that has a U-Boot wrapper (installed by the mkimage utility) that includes the OS type and loader information.
A very common practice (e.g. the typical Linux kernel Makefile) is to use a zImage file. Since a zImage file is self-extracting (i.e. needs no external decompressors), the wrapper would indicate that this kernel is "not compressed" even though it actually is.

Note that the author/maintainer of U-Boot considers the (widespread) use of using a zImage inside a uImage questionable:

Actually it's pretty stupid to use a zImage inside an uImage. It is much better to use normal (uncompressed) kernel image, compress it using just gzip, and use this as poayload for mkimage. This way U-Boot does the uncompresiong instead of including yet another uncompressor with each kernel image.

(quoted from https://lists.yoctoproject.org/pipermail/yocto/2013-October/016778.html)

Which type of kernel image do I have to use?

You could choose whatever you want to program for.
For economy of storage, you should probably chose a compressed image over the uncompressed one.
Beware that executing the kernel (presumably the Linux kernel) involves more than just loading the kernel image into memory. Depending on the architecture (e.g. ARM) and the Linux kernel version (e.g. with or without DTB), there are registers and memory buffers that may have to be prepared for the kernel. In one instance there was also hardware initialization that U-Boot performed that had to be replicated.

ADDENDUM

I know that u-boot needs a kernel in uImage format.

That is accurate for all versions of U-Boot which only have the bootm command.
But more recent versions of U-Boot could also have the bootz command that can boot a zImage.

Consider the following:

class Bad(object):
    def __eq__(self, other):
        return True

c = Bad()
c is None # False, equivalent to id(c) == id(None)
c == None # True, equivalent to c.__eq__(None)

Consider the graph shown below with the source as Vertex A. First try running Dijkstra’s algorithm yourself on it.

When I refer to Dijkstra’s algorithm in my explanation I will be talking about the Dijkstra's Algorithm as implemented below,

So starting out the values (the distance from the source to the vertex) initially assigned to each vertex are,

We first extract the vertex in Q = [A,B,C] which has smallest value, i.e. A, after which Q = [B, C]. Note A has a directed edge to B and C, also both of them are in Q, therefore we update both of those values,

Now we extract C as (2<5), now Q = [B]. Note that C is connected to nothing, so line16 loop doesn't run.

Finally we extract B, after which . Note B has a directed edge to C but C isn't present in Q therefore we again don't enter the for loop in line16,

So we end up with the distances as

Note how this is wrong as the shortest distance from A to C is 5 + -10 = -5, when you go .

So for this graph Dijkstra's Algorithm wrongly computes the distance from A to C.

This happens because Dijkstra's Algorithm does not try to find a shorter path to vertices which are already extracted from Q.

What the line16 loop is doing is taking the vertex u and saying "hey looks like we can go to v from source via u, is that (alt or alternative) distance any better than the current dist[v] we got? If so lets update dist[v]"

Note that in line16 they check all neighbors v (i.e. a directed edge exists from u to v), of u which are still in Q. In line14 they remove visited notes from Q. So if x is a visited neighbour of u, the path is not even considered as a possible shorter way from source to v.

In our example above, C was a visited neighbour of B, thus the path was not considered, leaving the current shortest path unchanged.

This is actually useful if the edge weights are all positive numbers, because then we wouldn't waste our time considering paths that can't be shorter.

So I say that when running this algorithm if x is extracted from Q before y, then its not possible to find a path - which is shorter. Let me explain this with an example,

As y has just been extracted and x had been extracted before itself, then dist[y] > dist[x] because otherwise y would have been extracted before x. (line 13 min distance first)

And as we already assumed that the edge weights are positive, i.e. length(x,y)>0. So the alternative distance (alt) via y is always sure to be greater, i.e. dist[y] + length(x,y)> dist[x]. So the value of dist[x] would not have been updated even if y was considered as a path to x, thus we conclude that it makes sense to only consider neighbors of y which are still in Q (note comment in line16)

But this thing hinges on our assumption of positive edge length, if length(u,v)<0 then depending on how negative that edge is we might replace the dist[x] after the comparison in line18.

So any dist[x] calculation we make will be incorrect if x is removed before all vertices v - such that x is a neighbour of v with negative edge connecting them - is removed.

Because each of those v vertices is the second last vertex on a potential "better" path from source to x, which is discarded by Dijkstra’s algorithm.

So in the example I gave above, the mistake was because C was removed before B was removed. While that C was a neighbour of B with a negative edge!

Just to clarify, B and C are A's neighbours. B has a single neighbour C and C has no neighbours. length(a,b) is the edge length between the vertices a and b.

In C, you can use the built in qsort command:

int compare( const void* a, const void* b)
{
     int int_a = * ( (int*) a );
     int int_b = * ( (int*) b );

     if ( int_a == int_b ) return 0;
     else if ( int_a < int_b ) return -1;
     else return 1;
}

qsort( a, 6, sizeof(int), compare )

see: http://www.cplusplus.com/reference/clibrary/cstdlib/qsort/

To answer the second part of your question: an optimal (comparison based) sorting algorithm is one that runs with O(n log(n)) comparisons. There are several that have this property (including quick sort, merge sort, heap sort, etc.), but which one to use depends on your use case.

As a side note, you can sometime do better than O(n log(n)) if you know something about your data - see the wikipedia article on Radix Sort

For all the Kotlin developers out there:

Here is the Android Studio proposed solution to send data to your Fragment (= when you create a Blank-Fragment with File -> New -> Fragment -> Fragment(Blank) and you check "include fragment factory methods").

Put this in your Fragment:

class MyFragment: Fragment {

...

    companion object {

            @JvmStatic
            fun newInstance(isMyBoolean: Boolean) = MyFragment().apply {
                arguments = Bundle().apply {
                    putBoolean("REPLACE WITH A STRING CONSTANT", isMyBoolean)
                }
            }
     }
}

.apply is a nice trick to set data when an object is created, or as they state here:

Calls the specified function [block] with this value as its receiver and returns this value.

Then in your Activity or Fragment do:

val fragment = MyFragment.newInstance(false)
... // transaction stuff happening here

and read the Arguments in your Fragment such as:

private var isMyBoolean = false

override fun onAttach(context: Context?) {
    super.onAttach(context)
    arguments?.getBoolean("REPLACE WITH A STRING CONSTANT")?.let {
        isMyBoolean = it
    }
}

To "send" data back to your Activity, simply define a function in your Activity and do the following in your Fragment:

(activity as? YourActivityClass)?.callYourFunctionLikeThis(date) // your function will not be called if your Activity is null or is a different Class

Enjoy the magic of Kotlin!

.NET DDD Sample from Domain-Driven Design Book by Eric Evans can be found here: http://dddsamplenet.codeplex.com

Cheers,

Jakub G

Use 'dd-mon-yyyy' if you are using the 2nd date format specified in your answer. Ex:

to_date(<column name>,'dd-mon-yyyy')

Implement LocalizedError:

struct StringError : LocalizedError
{
    var errorDescription: String? { return mMsg }
    var failureReason: String? { return mMsg }
    var recoverySuggestion: String? { return "" }
    var helpAnchor: String? { return "" }

    private var mMsg : String

    init(_ description: String)
    {
        mMsg = description
    }
}

Note that simply implementing Error, for instance, as described in one of the answers, will fail (at least in Swift 3), and calling localizedDescription will result in the string "The operation could not be completed. (.StringError error 1.)"

IEnumerable and IEnumerator are both interfaces. IEnumerable has just one method called GetEnumerator. This method returns (as all methods return something including void) another type which is an interface and that interface is IEnumerator. When you implement enumerator logic in any of your collection class, you implement IEnumerable (either generic or non generic). IEnumerable has just one method whereas IEnumerator has 2 methods (MoveNext and Reset) and a property Current. For easy understanding consider IEnumerable as a box that contains IEnumerator inside it (though not through inheritance or containment). See the code for better understanding:

class Test : IEnumerable, IEnumerator
{
    IEnumerator IEnumerable.GetEnumerator()
    {
        throw new NotImplementedException();
    }

    public object Current
    {
        get { throw new NotImplementedException(); }
    }

    public bool MoveNext()
    {
        throw new NotImplementedException();
    }

    public void Reset()
    {
        throw new NotImplementedException();
    }
}

There is an excellent tutorial on how to create a library for the Arduino platform. A library is basically a class, so it should show you how its all done.

On Arduino you can use classes, but there are a few restrictions:

• No new and delete keywords
• No exceptions
• No libstdc++, hence no standard functions, templates or classes

You also need to make new files for your classes, you can't just declare them in your main sketch. You also will need to close the Arduino IDE when recompiling a library. That is why I use Eclipse as my Arduino IDE.

you can use

<a href="\\computername\folder">Open folder</a>

in Internet Explorer

It works even in API 8 you can use this code:

 Notification n = 
   new Notification(R.drawable.yourownpicturehere, getString(R.string.noticeMe), 
System.currentTimeMillis());

PendingIntent i=PendingIntent.getActivity(this, 0,
             new Intent(this, NotifyActivity.class),
                               0);
n.setLatestEventInfo(getApplicationContext(), getString(R.string.title), getString(R.string.message), i);
n.number=++count;
n.flags |= Notification.FLAG_AUTO_CANCEL;
n.flags |= Notification.DEFAULT_SOUND;
n.flags |= Notification.DEFAULT_VIBRATE;
n.ledARGB = 0xff0000ff;
n.flags |= Notification.FLAG_SHOW_LIGHTS;

// Now invoke the Notification Service
String notifService = Context.NOTIFICATION_SERVICE;
NotificationManager mgr = 
   (NotificationManager) getSystemService(notifService);
mgr.notify(NOTIFICATION_ID, n);

Or I suggest to follow an excellent tutorial about this

In my case, just using flex-shrink: 0 didn't work. But adding flex-grow: 1 to it worked.

.item {
    flex-shrink: 0;
    flex-grow: 1;
}

An additional way to get around the problem is by leveraging Flash Player's Local Only security sandbox and ExternalInterface methods. One can have JavaScript request a Flash application published using the Local Only security sandbox to load the file from the hard drive, and Flash can pass the data back to JavaScript via Flash's ExternalInterface class. I've tested this in Chrome, FF and IE9, and it works well. I'd be happy to share the code if anyone is interested.

EDIT: I've started a google code (ironic?) project for the implementation: http://code.google.com/p/flash-loader/

To answer the first part of your question: Microsoft published their Entity Framework version history here.

I used the above examples to craft my own function. But the missing piece for me was automatically escaping magic characters.

Here is my contribution:

function split(text, delim)
    -- returns an array of fields based on text and delimiter (one character only)
    local result = {}
    local magic = "().%+-*?[]^$"

    if delim == nil then
        delim = "%s"
    elseif string.find(delim, magic, 1, true) then
        -- escape magic
        delim = "%"..delim
    end

    local pattern = "[^"..delim.."]+"
    for w in string.gmatch(text, pattern) do
        table.insert(result, w)
    end
    return result
end

Bootstrap V3:

Once i was searching for laravel features then i got to know this amazing form validation. Later on, i amended glyphicon icon features. Now, it looks great.

<div class="col-md-12">
<div class="form-group has-error has-feedback">
    <input id="enter email" name="email" type="text" placeholder="Enter email" class="form-control ">
    <span class="glyphicon glyphicon-remove form-control-feedback"></span>       
    <span class="help-block"><p>The Email field is required.</p></span>                                        
</div>
</div>
<div class="clearfix"></div>

<div class="col-md-6">
<div class="form-group has-error has-feedback">
    <input id="account_holder_name" name="name" type="text" placeholder="Name" class="form-control ">
    <span class="glyphicon glyphicon-remove form-control-feedback"></span>                                            
    <span class="help-block"><p>The Name field is required.</p></span>                                        
</div>
</div>
<div class="col-md-6">
<div class="form-group has-error has-feedback">
 <input id="check_np" name="check_no" type="text" placeholder="Check no" class="form-control ">
 <span class="glyphicon glyphicon-remove form-control-feedback"></span>
<span class="help-block"><p>The Check No. field is required.</p></span>                                       
</div>
</div>

This is what it looks like:

Once i completed it i thought i should implement it in Codeigniter as well. So here is the Codeigniter-3 validation with Bootstrap:

Controller

function addData()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('email','Email','trim|required|valid_email|max_length[128]');
if($this->form_validation->run() == FALSE)
{
//validation fails. Load your view.
$this->loadViews('Load your view','pass your data to view if any');
}
else
{  
 //validation pass. Your code here.
}
}

View

<div class="col-md-12">
<?php 
 $email_error = (form_error('email') ? 'has-error has-feedback' : '');
 if(!empty($email_error)){
 $emailData = '<span class="help-block">'.form_error('email').'</span>';
 $emailClass = $email_error;
 $emailIcon = '<span class="glyphicon glyphicon-remove form-control-feedback"></span>';
}
else{
    $emailClass = $emailIcon = $emailData = '';
 } 
 ?>
<div class="form-group <?= $emailClass ?>">
<input id="enter email" name="email" type="text" placeholder="Enter email" class="form-control ">
<?= $emailIcon ?>
<?= $emailData ?>
</div>
</div>

Output:

Perhaps use information_schema:

SELECT EXISTS(
    SELECT * 
    FROM information_schema.tables 
    WHERE 
      table_schema = 'company3' AND 
      table_name = 'tableincompany3schema'
);

Please,

try and check if the triggering button has attribute type="button". Working example:

  <button type="button" id="trigger" style="visibility:visible;" onclick="modal_btn_click()">Trigger Modal Click</button>

  <!-- Modal -->
  <div class="modal fade" id="myModal" role="dialog">
    <div class="modal-dialog modal-sm">
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal">&times;</button>
          <h4 class="modal-title">Modal Header</h4>
        </div>
        <div class="modal-body">
          <p>This is a small modal.</p>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        </div>
      </div>
    </div>
  </div>

   <script >
           function modal_btn_click() {

               $('#myModal').modal({ show: true });
           }
   </script>

Solution(s) for this, found in the official wampserver.com forums:

SOLUTION #1:

This problem is caused by Windows (7) in combination with any software that also uses port 80 (like Skype or IIS (which is installed on most developer machines)). A video solution can be found here (34.500+ views, damn, this seems to be a big thing ! EDIT: The video now has ~60.000 views ;) )

To make it short: open command line tool, type "netstat -aon" and look for any lines that end of ":80". Note thatPID on the right side. This is the process id of the software which currently usesport 80. Press AltGr + Ctrl + Del to get into the Taskmanager. Switch to the tab where you can see all services currently running, ordered by PID. Search for that PID you just notices and stop that thing (right click). To prevent this in future, you should config the software's port settings (skype can do that).

SOLUTION #2:

left click the wamp icon in the taskbar, go to apache > httpd.conf and edit this file: change "listen to port .... 80" to 8080. Restart. Done !

SOLUTION #3:

Port 80 blocked by "Microsoft Web Deployment Service", simply deinstall this, more info here

By the way, it's not Microsoft's fault, it's a stupid usage of ports by most WAMP stacks.

IMPORTANT: you have to use localhost or 127.0.0.1 now with port 8080, this means 127.0.0.1:8080 or localhost:8080.

To declare a string literal as an output column, leave the Table off and just use Test. It doesn't need to be associated with a table among your joins, since it will be accessed only by its column alias. When using a metadata function like getColumnMeta(), the table name will be an empty string because it isn't associated with a table.

SELECT
  `field1`, 
  `field2`, 
  'Test' AS `field3` 
FROM `Test`;

Note: I'm using single quotes above. MySQL is usually configured to honor double quotes for strings, but single quotes are more widely portable among RDBMS.

If you must have a table alias name with the literal value, you need to wrap it in a subquery with the same name as the table you want to use:

SELECT
  field1,
  field2,
  field3
FROM 
  /* subquery wraps all fields to put the literal inside a table */
  (SELECT field1, field2, 'Test' AS field3 FROM Test) AS Test

Now field3 will come in the output as Test.field3.

You can update all gems by just performing:

sudo gem update

I use templates for long text:

email-template.txt contains

hello {name}!
how are you? 

In PHP I do this:

$email = file_get_contents('email-template.txt');
$email = str_replace('{name},', 'Simon', $email);

When you write 'array[index]' in C it translates it to machine instructions.

The translation is goes something like:

1. 'get the address of array'
2. 'get the size of the type of objects array is made up of'
3. 'multiply the size of the type by index'
4. 'add the result to the address of array'
5. 'read what's at the resulting address'

The result addresses something which may, or may not, be part of the array. In exchange for the blazing speed of machine instructions you lose the safety net of the computer checking things for you. If you're meticulous and careful it's not a problem. If you're sloppy or make a mistake you get burnt. Sometimes it might generate an invalid instruction that causes an exception, sometimes not.

@tableName Table variables are alive for duration of the script running only i.e. they are only session level objects.

To test this, open two query editor windows under sql server management studio, and create table variables with same name but different structures. You will get an idea. The @tableName object is thus temporary and used for our internal processing of data, and it doesn't contribute to the actual database structure.

There is another type of table object which can be created for temporary use. They are #tableName objects declared like similar create statement for physical tables:

Create table #test (Id int, Name varchar(50))

This table object is created and stored in temp database. Unlike the first one, this object is more useful, can store large data and takes part in transactions etc. These tables are alive till the connection is open. You have to drop the created object by following script before re-creating it.

IF OBJECT_ID('tempdb..#test') IS NOT NULL
  DROP TABLE #test 

Hope this makes sense !

cPickle comes with the standard library… in python 2.x. You are on python 3.x, so if you want cPickle, you can do this:

>>> import _pickle as cPickle

However, in 3.x, it's easier just to use pickle.

No need to install anything. If something requires cPickle in python 3.x, then that's probably a bug.

In the case where one is using the ADO.NET Entity Framework, EchoStorm's solution also works perfectly. But it took me a few minutes to wrap my head around it. Assuming you have a database context, dc, and want to find rows in table x not linked in table y, the complete answer answer looks like:

var linked =
  from x in dc.X
  from y in dc.Y
  where x.MyProperty == y.MyProperty
  select x;
var notLinked =
  dc.X.Except(linked);

In response to Andy's comment, yes, one can have two from's in a LINQ query. Here's a complete working example, using lists. Each class, Foo and Bar, has an Id. Foo has a "foreign key" reference to Bar via Foo.BarId. The program selects all Foo's not linked to a corresponding Bar.

class Program
{
    static void Main(string[] args)
    {
        // Creates some foos
        List<Foo> fooList = new List<Foo>();
        fooList.Add(new Foo { Id = 1, BarId = 11 });
        fooList.Add(new Foo { Id = 2, BarId = 12 });
        fooList.Add(new Foo { Id = 3, BarId = 13 });
        fooList.Add(new Foo { Id = 4, BarId = 14 });
        fooList.Add(new Foo { Id = 5, BarId = -1 });
        fooList.Add(new Foo { Id = 6, BarId = -1 });
        fooList.Add(new Foo { Id = 7, BarId = -1 });

        // Create some bars
        List<Bar> barList = new List<Bar>();
        barList.Add(new Bar { Id = 11 });
        barList.Add(new Bar { Id = 12 });
        barList.Add(new Bar { Id = 13 });
        barList.Add(new Bar { Id = 14 });
        barList.Add(new Bar { Id = 15 });
        barList.Add(new Bar { Id = 16 });
        barList.Add(new Bar { Id = 17 });

        var linked = from foo in fooList
                     from bar in barList
                     where foo.BarId == bar.Id
                     select foo;
        var notLinked = fooList.Except(linked);
        foreach (Foo item in notLinked)
        {
            Console.WriteLine(
                String.Format(
                "Foo.Id: {0} | Bar.Id: {1}",
                item.Id, item.BarId));
        }
        Console.WriteLine("Any key to continue...");
        Console.ReadKey();
    }
}

class Foo
{
    public int Id { get; set; }
    public int BarId { get; set; }
}

class Bar
{
    public int Id { get; set; }
}

I would recommend using DialogFragment.

Sure, creating a "Yes/No" dialog with it is pretty complex considering that it should be rather simple task, but creating a similar dialog box with Dialog is surprisingly complicated as well.

(Activity lifecycle makes it complicated - you must let Activity manage the lifecycle of the dialog box - and there is no way to pass custom parameters e.g. the custom message to Activity.showDialog if using API levels under 8)

The nice thing is that you can usually build your own abstraction on top of DialogFragment pretty easily.

this is pretty good as well

clear breaks
clear computes

Prompt
Prompt Tablespace Usage
Prompt

SET lines 120 pages 500 
col percent_used format 999.99

SELECT a.TABLESPACE_NAME,
  NVL(ROUND((a.BYTES  /1024)/1024/1024,2),2) GB_TOTAL,
  NVL(ROUND((b.BYTES  /1024)/1024/1024,2),2) GB_FREE,
  NVL(ROUND((b.largest/1024),2),0) KB_Chunk,
  NVL(ROUND(((a.BYTES -NVL(b.BYTES,1))/a.BYTES)*100,4),0) percent_used
FROM
  (SELECT TABLESPACE_NAME,
    NVL(SUM(BYTES),0) BYTES
  FROM dba_data_files
  GROUP BY TABLESPACE_NAME
  ) a,
  (SELECT TABLESPACE_NAME,
    NVL(SUM(BYTES),1) BYTES ,
    NVL(MAX(BYTES),1) largest
  FROM dba_free_space
  GROUP BY TABLESPACE_NAME
  ) b
WHERE a.TABLESPACE_NAME=b.TABLESPACE_NAME(+)
ORDER BY ((a.BYTES-b.BYTES)/a.BYTES) DESC;

output

TABLESPACE_NAME                  GB_TOTAL    GB_FREE   KB_CHUNK PERCENT_USED
------------------------------ ---------- ---------- ---------- ------------
SYSTEM                                .84        .02       9216        97.36
SYSAUX                                .57        .05      32768        91.10
UNDOTBS1                              .06        .05      36864        23.13
USERS                                   0          0       4096        20.00

I resolve this with:

def ping(self, host):
    res = False

    ping_param = "-n 1" if system_name().lower() == "windows" else "-c 1"

    resultado = os.popen("ping " + ping_param + " " + host).read()

    if "TTL=" in resultado:
        res = True
    return res

"TTL" is the way to know if the ping is correctly. Saludos

There is but one difference. You have to take care or name mangling win C++. But on windows you have to take care about 1) decrating the functions to be exported from the DLL 2) write a so called .def file which lists all the exported symbols.

In Windows while compiling a DLL have have to use

__declspec(dllexport)

but while using it you have to write __declspec(dllimport)

So the usual way of doing that is something like

#ifdef BUILD_DLL
#define EXPORT __declspec(dllexport)
#else
#define EXPORT __declspec(dllimport)
#endif

The naming is a bit confusing, because it is often named EXPORT.. But that's what you'll find in most of the headers somwhere. So in your case you'd write (with the above #define)

int DLL_EXPORT add.... int DLL_EXPORT mult...

Remember that you have to add the Preprocessor directive BUILD_DLL during building the shared library.

Regards Friedrich

Here's a complete example of how it can be done. However you need flashback query privileges on the child table.

Here's the setup.

create table parent_tab
  (parent_id number primary key,
  val varchar2(20));

create table child_tab
    (child_id number primary key,
    parent_id number,
    child_val number,
     constraint child_par_fk foreign key (parent_id) references parent_tab);

insert into parent_tab values (1,'Red');
insert into parent_tab values (2,'Green');
insert into parent_tab values (3,'Blue');
insert into parent_tab values (4,'Black');
insert into parent_tab values (5,'White');

insert into child_tab values (10,1,100);
insert into child_tab values (20,3,100);
insert into child_tab values (30,3,100);
insert into child_tab values (40,4,100);
insert into child_tab values (50,5,200);

commit;

select * from parent_tab
where parent_id not in (select parent_id from child_tab);

Now delete a subset of the children (ones with parents 1,3 and 4 - but not 5).

delete from child_tab where child_val = 100;

Then get the parent_ids from the current COMMITTED state of the child_tab (ie as they were prior to your deletes) and remove those that your session has NOT deleted. That gives you the subset that have been deleted. You can then delete those out of the parent_tab

delete from parent_tab
where parent_id in
  (select parent_id from child_tab as of scn dbms_flashback.get_system_change_number
  minus
  select parent_id from child_tab);

'Green' is still there (as it didn't have an entry in the child table anyway) and 'Red' is still there (as it still has an entry in the child table)

select * from parent_tab
where parent_id not in (select parent_id from child_tab);

select * from parent_tab;

It is an exotic/unusual operation, so if i was doing it I'd probably be a bit cautious and lock both child and parent tables in exclusive mode at the start of the transaction. Also, if the child table was big it wouldn't be particularly performant so I'd opt for a PL/SQL solution like Rajesh's.

I don't know if I'm on the right path, but I got it working on ng 2.4.8 with the following form/submit tags:

<form #heroForm="ngForm" (ngSubmit)="add(newHero); heroForm.reset()">
<!-- place your input stuff here -->
<button type="submit" class="btn btn-default" [disabled]="!heroForm.valid">Add hero</button>

Seems to do the trick and sets the form's fields to "pristine" again.

jquery is your friend here.

http://docs.jquery.com/UI/Tree

If you want to make your own, here is some high level guidance:

Display all of your data as <ul /> elements with the inner data as nested <ul />, and then use the jquery:

$('.ulClass').click(function(){ $(this).children().toggle(); });

I believe that is correct. Something like that.

EDIT:

Here is a complete example.

<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
</head>
                                                                                                                                                                                <body>
<ul>
    <li><span class="Collapsable">item 1</span><ul>
        <li><span class="Collapsable">item 1</span></li>
        <li><span class="Collapsable">item 2</span><ul>
            <li><span class="Collapsable">item 1</span></li>
            <li><span class="Collapsable">item 2</span></li>
            <li><span class="Collapsable">item 3</span></li>
            <li><span class="Collapsable">item 4</span></li>
        </ul>
        </li>
        <li><span class="Collapsable">item 3</span></li>
        <li><span class="Collapsable">item 4</span><ul>
            <li><span class="Collapsable">item 1</span></li>
            <li><span class="Collapsable">item 2</span></li>
            <li><span class="Collapsable">item 3</span></li>
            <li><span class="Collapsable">item 4</span></li>
        </ul>
        </li>
    </ul>
    </li>
    <li><span class="Collapsable">item 2</span><ul>
        <li><span class="Collapsable">item 1</span></li>
        <li><span class="Collapsable">item 2</span></li>
        <li><span class="Collapsable">item 3</span></li>
        <li><span class="Collapsable">item 4</span></li>
    </ul>
    </li>
    <li><span class="Collapsable">item 3</span><ul>
        <li><span class="Collapsable">item 1</span></li>
        <li><span class="Collapsable">item 2</span></li>
        <li><span class="Collapsable">item 3</span></li>
        <li><span class="Collapsable">item 4</span></li>
    </ul>
    </li>
    <li><span class="Collapsable">item 4</span></li>
</ul>
<script type="text/javascript">
    $(".Collapsable").click(function () {

        $(this).parent().children().toggle();
        $(this).toggle();

    });

</script>

There are some references and pointers in the comments on this page at PHP.net:

Torsten says

"Section C.8 of the XHTML spec's compatability guidelines apply to the use of the name attribute as a fragment identifier. If you check the DTD you'll find that the 'name' attribute is still defined as CDATA for form elements."

Jetboy says

"according to this: http://www.w3.org/TR/xhtml1/#C_8 the type of the name attribute has been changed in XHTML 1.0, meaning that square brackets in XHTML's name attribute are not valid.

Regardless, at the time of writing, the W3C's validator doesn't pick this up on a XHTML document."

Use setState in your view to change employed property of state. This is example of React render engine.

 someFunctionWhichChangeParamEmployed(isEmployed) {
      this.setState({
          employed: isEmployed
      });
 }

 getInitialState() {
      return {
          employed: true
      }
 },

 render(){
    if (this.state.employed) {
        return (
            <div>
                <MyInput ref="job-title" name="job-title" />
            </div>
        );
    } else {
        return (
            <div>
                <span>Diff me!</span>
                <MyInput ref="unemployment-reason" name="unemployment-reason" />
                <MyInput ref="unemployment-duration" name="unemployment-duration" />
            </div>
        );
    }
}

You may use also

select * from pg_tables where schemaname = 'information_schema'

In generall pg* tables allow you to see everything in the db, not constrained to your permissions (if you have access to the tables of course).

Use a literal control and write your html like this:

literal1.text = "<h2><p>Notify:</p> alert</h2>";

PROJECT eliminates columns while SELECT eliminates rows.

npm install now supports this

npm install --save ../path/to/mymodule

For this to work mymodule must be configured as a module with its own package.json. See Creating NodeJS modules.

As of npm 2.0, local dependencies are supported natively. See danilopopeye's answer to a similar question. I've copied his response here as this question ranks very high in web search results.

This feature was implemented in the version 2.0.0 of npm. For example:

{
  "name": "baz",
  "dependencies": {
    "bar": "file:../foo/bar"
  }
}

Any of the following paths are also valid:

../foo/bar
~/foo/bar
./foo/bar
/foo/bar

syncing updates

Since npm install copies mymodule into node_modules, changes in mymodule's source will not automatically be seen by the dependent project.

There are two ways to update the dependent project with

• Update the version of mymodule and then use npm update: As you can see above, the package.json "dependencies" entry does not include a version specifier as you would see for normal dependencies. Instead, for local dependencies, npm update just tries to make sure the latest version is installed, as determined by mymodule's package.json. See chriskelly's answer to this specific problem.

• Reinstall using npm install. This will install whatever is at mymodule's source path, even if it is older, or has an alternate branch checked out, whatever.

No, it is not RESTful. The only reason why you should be putting a verb (force_delete) into the URI is if you would need to overload GET/POST methods in an environment where PUT/DELETE methods are not available. Judging from your use of the DELETE method, this is not the case.

HTTP error code 409/Conflict should be used for situations where there is a conflict which prevents the RESTful service to perform the operation, but there is still a chance that the user might be able to resolve the conflict himself. A pre-deletion confirmation (where there are no real conflicts which would prevent deletion) is not a conflict per se, as nothing prevents the API from performing the requested operation.

As Alex said (I don't know who downvoted him, he is correct), this should be handled in the UI, because a RESTful service as such just processes requests and should be therefore stateless (i.e. it must not rely on confirmations by holding any server-side information about of a request).

Two examples how to do this in UI would be to:

• pre-HTML5:* show a JS confirmation dialog to the user, and send the request only if the user confirms it
• HTML5:* use a form with action DELETE where the form would contain only "Confirm" and "Cancel" buttons ("Confirm" would be the submit button)

(*) Please note that HTML versions prior to 5 do not support PUT and DELETE HTTP methods natively, however most modern browsers can do these two methods via AJAX calls. See this thread for details about cross-browser support.

Update (based on additional investigation and discussions):

The scenario where the service would require the force_delete=true flag to be present violates the uniform interface as defined in Roy Fielding's dissertation. Also, as per HTTP RFC, the DELETE method may be overridden on the origin server (client), implying that this is not done on the target server (service).

So once the service receives a DELETE request, it should process it without needing any additional confirmation (regardless if the service actually performs the operation).

I have developed a solution with the freely available classes ( AnimatedGifEncoder, GifDecoder, and LWZEncoder) available for handling GIF Animation.
You can download the jgifcode jar and run the GifImageUtil class. Link: http://www.jgifcode.com

Export from Eclipse

1. Update your Eclipse ADT Plugin to 22.0 or higher, then go to File | Export

2. Go to Android now then click on Generate Gradle build files, then it would generate gradle file for you.

   

3. Select your project you want to export

   

4. Click on finish now

   

Import into Android Studio

1. In Android Studio, close any projects currently open. You should see the Welcome to Android Studio window.

2. Click Import Project.

3. Locate the project you exported from Eclipse, expand it, select it and click OK.

Alternative ways of iteration through array/string with side effects

var str = '21,32,234,223';_x000D_
var substr = str.split(',');_x000D_
_x000D_
substr.reduce((a,x)=> console.log('reduce',x), 0)        // return undefined_x000D_
_x000D_
substr.every(x=> { console.log('every',x); return true}) // return true_x000D_
_x000D_
substr.some(x=> { console.log('some',x); return false})  // return false_x000D_
_x000D_
substr.map(x=> console.log('map',x));                    // return array_x000D_
 _x000D_
str.replace(/(\d+)/g, x=> console.log('replace',x))      // return string

Actually, the correct solution is:

composer require vendor/package

Taken from the CLI documentation for Composer:

The require command adds new packages to the composer.json file from the current directory.

php composer.phar require

After adding/changing the requirements, the modified requirements will be installed or updated.

If you do not want to choose requirements interactively, you can just pass them to the command.

php composer.phar require vendor/package:2.* vendor/package2:dev-master

While it is true that composer update installs new packages found in composer.json, it will also update the composer.lock file and any installed packages according to any fuzzy logic (> or * chars after the colons) found in composer.json! This can be avoided by using composer update vendor/package, but I wouldn't recommend making a habit of it, as you're one forgotten argument away from a potentially broken project…

Keep things sane and stick with composer require vendor/package for adding new dependencies!

You can catch it like any other exception:

try {
  foo();
}
catch (const std::bad_alloc&) {
  return -1;
}

Quite what you can usefully do from this point is up to you, but it's definitely feasible technically.

In general you cannot, and should not try, to respond to this error. bad_alloc indicates that a resource cannot be allocated because not enough memory is available. In most scenarios your program cannot hope to cope with that, and terminating soon is the only meaningful behaviour.

Worse, modern operating systems often over-allocate: on such systems, malloc and new can return a valid pointer even if there is not enough free memory left – std::bad_alloc will never be thrown, or is at least not a reliable sign of memory exhaustion. Instead, attempts to access the allocated memory will then result in a segmentation fault, which is not catchable (you can handle the segmentation fault signal, but you cannot resume the program afterwards).

The only thing you could do when catching std::bad_alloc is to perhaps log the error, and try to ensure a safe program termination by freeing outstanding resources (but this is done automatically in the normal course of stack unwinding after the error gets thrown if the program uses RAII appropriately).

In certain cases, the program may attempt to free some memory and try again, or use secondary memory (= disk) instead of RAM but these opportunities only exist in very specific scenarios with strict conditions:

1. The application must ensure that it runs on a system that does not overcommit memory, i.e. it signals failure upon allocation rather than later.
2. The application must be able to free memory immediately, without any further accidental allocations in the meantime.

It’s exceedingly rare that applications have control over point 1 — userspace applications never do, it’s a system-wide setting that requires root permissions to change.¹

OK, so let’s assume you’ve fixed point 1. What you can now do is for instance use a LRU cache for some of your data (probably some particularly large business objects that can be regenerated or reloaded on demand). Next, you need to put the actual logic that may fail into a function that supports retry — in other words, if it gets aborted, you can just relaunch it:

lru_cache<widget> widget_cache;

double perform_operation(int widget_id) {
    std::optional<widget> maybe_widget = widget_cache.find_by_id(widget_id);
    if (not maybe_widget) {
        maybe_widget = widget_cache.store(widget_id, load_widget_from_disk(widget_id));
    }
    return maybe_widget->frobnicate();
}

…

for (int num_attempts = 0; num_attempts < MAX_NUM_ATTEMPTS; ++num_attempts) {
    try {
        return perform_operation(widget_id);
    } catch (std::bad_alloc const&) {
        if (widget_cache.empty()) throw; // memory error elsewhere.
        widget_cache.remove_oldest();
    }
}

// Handle too many failed attempts here.

But even here, using std::set_new_handler instead of handling std::bad_alloc provides the same benefit and would be much simpler.

¹ If you’re creating an application that does control point 1, and you’re reading this answer, please shoot me an email, I’m genuinely curious about your circumstances.

What is the C++ Standard specified behavior of new in c++?

The usual notion is that if new operator cannot allocate dynamic memory of the requested size, then it should throw an exception of type std::bad_alloc.
However, something more happens even before a bad_alloc exception is thrown:

C++03 Section 3.7.4.1.3: says

An allocation function that fails to allocate storage can invoke the currently installed new_handler(18.4.2.2), if any. [Note: A program-supplied allocation function can obtain the address of the currently installed new_handler using the set_new_handler function (18.4.2.3).] If an allocation function declared with an empty exception-specification (15.4), throw(), fails to allocate storage, it shall return a null pointer. Any other allocation function that fails to allocate storage shall only indicate failure by throw-ing an exception of class std::bad_alloc (18.4.2.1) or a class derived from std::bad_alloc.

Consider the following code sample:

#include <iostream>
#include <cstdlib>

// function to call if operator new can't allocate enough memory or error arises
void outOfMemHandler()
{
    std::cerr << "Unable to satisfy request for memory\n";

    std::abort();
}

int main()
{
    //set the new_handler
    std::set_new_handler(outOfMemHandler);

    //Request huge memory size, that will cause ::operator new to fail
    int *pBigDataArray = new int[100000000L];

    return 0;
}

In the above example, operator new (most likely) will be unable to allocate space for 100,000,000 integers, and the function outOfMemHandler() will be called, and the program will abort after issuing an error message.

As seen here the default behavior of new operator when unable to fulfill a memory request, is to call the new-handler function repeatedly until it can find enough memory or there is no more new handlers. In the above example, unless we call std::abort(), outOfMemHandler() would be called repeatedly. Therefore, the handler should either ensure that the next allocation succeeds, or register another handler, or register no handler, or not return (i.e. terminate the program). If there is no new handler and the allocation fails, the operator will throw an exception.

What is the new_handler and set_new_handler?

new_handler is a typedef for a pointer to a function that takes and returns nothing, and set_new_handler is a function that takes and returns a new_handler.

Something like:

typedef void (*new_handler)();
new_handler set_new_handler(new_handler p) throw();

set_new_handler's parameter is a pointer to the function operator new should call if it can't allocate the requested memory. Its return value is a pointer to the previously registered handler function, or null if there was no previous handler.

How to handle out of memory conditions in C++?

Given the behavior of newa well designed user program should handle out of memory conditions by providing a proper new_handlerwhich does one of the following:

Make more memory available: This may allow the next memory allocation attempt inside operator new's loop to succeed. One way to implement this is to allocate a large block of memory at program start-up, then release it for use in the program the first time the new-handler is invoked.

Install a different new-handler: If the current new-handler can't make any more memory available, and of there is another new-handler that can, then the current new-handler can install the other new-handler in its place (by calling set_new_handler). The next time operator new calls the new-handler function, it will get the one most recently installed.

(A variation on this theme is for a new-handler to modify its own behavior, so the next time it's invoked, it does something different. One way to achieve this is to have the new-handler modify static, namespace-specific, or global data that affects the new-handler's behavior.)

Uninstall the new-handler: This is done by passing a null pointer to set_new_handler. With no new-handler installed, operator new will throw an exception ((convertible to) std::bad_alloc) when memory allocation is unsuccessful.

Throw an exception convertible to std::bad_alloc. Such exceptions are not be caught by operator new, but will propagate to the site originating the request for memory.

Not return: By calling abort or exit.

Building on top of the Mozdev post that natevw references I've started a small project to render HTML to canvas in Firefox, Chrome & Safari. So for example you can simply do:

rasterizeHTML.drawHTML('<span class="color: green">This is HTML</span>' 
                     + '<img src="local_img.png"/>', canvas);

Source code and a more extensive example is here.

To mark as obsolete with a warning:

[Obsolete]
private static void SomeMethod()

You get a warning when you use it:

And with IntelliSense:

If you want a message:

[Obsolete("My message")]
private static void SomeMethod()

Here's the IntelliSense tool tip:

Finally if you want the usage to be flagged as an error:

[Obsolete("My message", true)]
private static void SomeMethod()

When used this is what you get:

Note: Use the message to tell people what they should use instead, not why it is obsolete.

If you want to open Google Maps in a browser:

http://maps.google.com/?q=<lat>,<lng>

To open the Google Maps app on an iOS mobile device, use the Google Maps URL Scheme:

comgooglemaps://?q=<lat>,<lng>

To open the Google Maps app on Android, use the geo: intent:

geo:<lat>,<lng>?z=<zoom>

The solution seems to be to add multiple @font-face rules, for example:

@font-face {
    font-family: "DejaVu Sans";
    src: url("fonts/DejaVuSans.ttf");
}
@font-face {
    font-family: "DejaVu Sans";
    src: url("fonts/DejaVuSans-Bold.ttf");
    font-weight: bold;
}
@font-face {
    font-family: "DejaVu Sans";
    src: url("fonts/DejaVuSans-Oblique.ttf");
    font-style: italic, oblique;
}
@font-face {
    font-family: "DejaVu Sans";
    src: url("fonts/DejaVuSans-BoldOblique.ttf");
    font-weight: bold;
    font-style: italic, oblique;
}

By the way, it would seem Google Chrome doesn't know about the format("ttf") argument, so you might want to skip that.

(This answer was correct for the CSS 2 specification. CSS3 only allows for one font-style rather than a comma-separated list.)

Generally speaking, for boolean or bit data types, you would use 0 or 1 like so:

UPDATE tbl SET bitCol = 1 WHERE bitCol = 0

See also:

• Which MySQL data type to use for storing boolean values
• How do you create a yes/no boolean field in SQL server?

    public class HomeController : Controller  
    {  
        public ActionResult Index()  
        {  
            ViewBag.TempValue = "Index Action called at HomeController";  
            return View();  
        }  

        [ChildActionOnly]  
        public ActionResult ChildAction(string param)  
        {  
            ViewBag.Message = "Child Action called. " + param;  
            return View();  
        }  
    }  


The code is initially invoking an Index action that in turn returns two Index views and at the View level it calls the ChildAction named “ChildAction”.

    @{
        ViewBag.Title = "Index";    
    }    
    <h2>    
        Index    
    </h2>  

    <!DOCTYPE html>    
    <html>    
    <head>    
        <title>Error</title>    
    </head>    
    <body>    
        <ul>  
            <li>    
                @ViewBag.TempValue    
            </li>    
            <li>@ViewBag.OnExceptionError</li>    
            @*<li>@{Html.RenderAction("ChildAction", new { param = "first" });}</li>@**@    
            @Html.Action("ChildAction", "Home", new { param = "first" })    
        </ul>    
    </body>    
    </html>  


      Copy and paste the code to see the result .thanks 

For CentOS: When installing php-gd you need to specify the version. I fixed it by running: sudo yum install php55-gd

One Short Answere is:

1. Both are same. But
2. 'new' only works with the basic 'init' initializer, and will not work with other initializers (eg initWithString:).

In my case conda Path was properly set (in .bashrc) by the conda installation bash. But to make it works I had to give executable file permissions to files in bin sub folder with chmod +x *.

My system info:

conda 4.2.9

Operating System: Debian GNU/Linux 8 (jessie)

Kernel: Linux 3.16.0-4-amd64

Architecture: x86-64

I think its simpler:

$('submit').click(function(e){
if (e.isValid())
   e.preventDefault();
//your code.
}

this will stop the submit until form is valid.

YES! You can most certainly close your application so it is no longer running in the background. Like others have commented finish() is the Google recommended way that doesn't really mean your program is closed.

System.exit(0);

That right there will close your application out leaving nothing running in the background.However,use this wisely and don't leave files open, database handles open, etc.These things would normally be cleaned up through the finish() command.

I personally HATE when I choose Exit in an application and it doesn't really exit.

With angular cli

npm install angular-material-icons --save

or

npm install material-design-icons-iconfont --save

material-design-icons-iconfont is the latest updated version of the icons. angular-material-icons is not updated for a long time

Wait wait wait install to be done and then add it to angular.json -> projects -> architect -> styles

 "styles": [
          "node_modules/material-design-icons/iconfont/material-icons.css",
          "src/styles.scss"
        ],

or if you installed material-desing-icons-iconfont then

"styles": [
              "node_modules/material-design-icons-iconfont/dist/material-design-icons.css",
              "src/styles.scss"
            ],

All of the given answers so far create a possibly unexpected result for a string like ",1,0,-1,, ,,2":

",1,0,-1,,  ,,2".split(",").map(Number).filter(x => !isNaN(x))
// [0, 1, 0, -1, 0, 0, 0, 2]

To solve this, I've come up with the following fix:

",1,0,-1,,  ,,2".split(',').filter(x => x.trim() !== "").map(Number).filter(x => !isNaN(x))
// [1, 0, -1, 2]

Please note that due to

isNaN("") // false!

and

isNaN(" ") // false

we cannot combine both filter steps.

=IF(ISNUMBER(SEARCH(LEFT(H2,3),I2)),"YES","NO")))

You can use the checked attribute for this:

<input type="radio" checked="checked">

After checking the default locations on Win7 with mysql --help and unable to find any config file, I manually searched for my.ini and found it at C:\ProgramData\MySQL\MySQL Server x.y (yep, ProgramData, not Program Files).

Though I used an own my.ini at Program Files, the other configuration overwrote my settings.

1. Open your project using VS code editor .

2. Change the default shell in vs code terminal to git bash.

3. now your project is open with bash console and right path, put "source venv\Scripts\activate" in Windows

Am using Mountain Lion. What I did was Look for /usr/local and Get Info. On it there is Sharing and Permissions. Make sure that its only the user and Admin are the only ones who have read and write permissions. Anyone else should have read access only. That sorted my problem.

Its normally helpful is your Run disk utilities and repair permissions too.

Here is my solution:

<td>
   <a href="/yourURL"></a>
   <div class="item-container">
      <img class="icon" src="/iconURL" />
      <p class="name">
         SomeText
      </p>
   </div>
</td>

(LESS)

td {
  padding: 1%;
  vertical-align: bottom;
  position:relative;

     a {
        height: 100%;
        display: block;
        position: absolute;
        top:0;
        bottom:0;
        right:0;
        left:0;
       }

     .item-container {
         /*...*/
     }
}

Like this you can still benefit from some table cell properties like vertical-align. (Tested on Chrome)

Try to create remote origin first, maybe is missing because you change name of the remote repo

git remote add origin URL_TO_YOUR_REPO

You can use something like componentDidUpdate

componentDidUpdate() {
  var elem = testNode //your ref to the element say testNode in your case; 
  elem.scrollTop = elem.scrollHeight;
};

Number((6.688689).toFixed(1)); // 6.7

var number = 6.688689;
var roundedNumber = Math.round(number * 10) / 10;

Use toFixed() function.

(6.688689).toFixed(); // equal to "7"
(6.688689).toFixed(1); // equal to "6.7"
(6.688689).toFixed(2); // equal to "6.69"

I got both errors: mostly reading initial communication packet and reading authorization packet one time. It seems random, but sometimes I was able to establish a connection after reboots, but after some time the error creeped back.

Avoiding the 5GHz WiFi in the client seems to have fixed the issue. That's what worked for me (server was always connected to 2.4GHz).

I tried everything from server versions, odbc connector versions, firewall settings, installing some windows update (and then uninstalling them), some of the answers posted here, etc... lost my entire sleep time for today. Super tired day awaits me.

You have to dot source them:

. .\build_funtions.ps1
. .\build_builddefs.ps1

Note the extra .

This heyscriptingguy article should be of help - How to Reuse Windows PowerShell Functions in Scripts

In JavaScript try:

encodeURIComponent() 

and in PHP:

urldecode($_POST['field']);

Simplest way:

jQuery(html).text();

That retrieves all the text from a string of html.

A slight modification of this to change the \voffset works for me:

\newenvironment{changemargin}[1]{
  \begin{list}{}{
    \setlength{\voffset}{#1}
  }
  \item[]}{\end{list}}

And then put your figures in a \begin{changemargin}{-1cm}...\end{changemargin} environment.

A simple solution for a delayed auto submit:

<body onload="setTimeout(function() { document.frm1.submit() }, 5000)">
   <form action="https://www.google.com" name="frm1">
      <input type="hidden" name="q" value="Hello world" />
   </form>
</body>

This will only remove the tab, newlines, spaces and nothing else.

import re
myString = "I want to Remove all white \t spaces, new lines \n and tabs \t"
output   = re.sub(r"[\n\t\s]*", "", myString)

OUTPUT:

IwantoRemoveallwhiespaces,newlinesandtabs

Good day!

Here is a great way to solve this problem:

Create a rectangle drawable with rounded corners like this:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> 
    <stroke android:width="2dp"
            android:color="#888888"/> 

    <corners android:bottomRightRadius="6dp" 
             android:bottomLeftRadius="6dp" 
             android:topLeftRadius="6dp" 
             android:topRightRadius="6dp"/> 
</shape>

save it in the drawable folder with the name rounded_border.xml

Then create a relative layout that uses the rounded_border as a background like this:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    android:background="@drawable/rounded_border">
   <ListView 
       android:id="@+id/list_view"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"/>

</RelativeLayout>

save that in your layout folder and name it table_with_border.xml

then whenever you need such a table pull it into a view using the include syntax like this:

<include
        android:id="@+id/rounded_table"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        layout="@layout/table_with_border" />

You will probably want to add some spacing around the edges - so just wrap the include in a LinearLayout and add some padding around the edges.

Simple and easy way to get a pretty border around a table.

To prevent having further issues with SSL you should add all those to Path :

 SETX PATH "%PATH%;C:\<path>\Anaconda3;C:\<path>\Anaconda3\Scripts;C:\<path>\Anaconda3\Library\bin"

Requests (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.") Error in PyCharm requesting website

In my copy, Shift + Tab does this, as long as I have a code selection, and am in a code window.

try this

let when = DispatchTime.now() + 1.5
    DispatchQueue.main.asyncAfter(deadline: when) {
        //some code
    }

Make a factory in your module and add a reference of the factory in controller and use its variables in the controller and now get the value of data in another controller by adding reference where ever you want

I have also faced this exact problem. But I have got a solution and it worked perfectly. I have needed to pass the parameters which are already produced by javascript function. So below code is working for me. I used ColdFusion for the backend. I just directly used the parameters as a variable.

                    $.ajax({
                    url: "https://myexampleurl.com/myactionfile.cfm",
                    type: "POST",
                    data : {paramert1: variable1,parameter2: variable2},
                    success: function(data){
                        console.log(data);                              
                    } )};

Here is what I ended up doing to work around the error.

First, I set up the database recovery model as SIMPLE. More information here.

Then, by deleting some old files I was able to make 5GB of free space which gave the log file more space to grow.

I reran the DELETE statement sucessfully without any warning.

I thought that by running the DELETE statement the database would inmediately become smaller thus freeing space in my hard drive. But that was not true. The space freed after a DELETE statement is not returned to the operating system inmediatedly unless you run the following command:

DBCC SHRINKDATABASE (MyDb, 0);
GO

More information about that command here.

This my another solution using priority constraint. The idea is set the width to 0.

1. create container view (orange) and set width.

2. create content view (red) and set trailing space 10pt to superview (orange). Notice trailing space constraints, there are 2 trailing constraint with different priority. Low(=10) and High(<=10). This is important to avoid ambiguity.

3. Set orange view's width to 0 to hide the view.

use ng-pattern, so that ng-valid and ng-dirty can act correctly

Email:<input type="email" name="email1" ng-model="emailReg">
Repeat Email:<input type="email" name="email2" ng-model="emailReg2" ng-pattern="emailReg">

<span ng-show="registerForm.email2.$error.pattern">Emails have to match!</span>

What you should do, is put CallFunction into *.cpp file, where you include B.h.

After edit, files will look like:

B.h:

#pragma once //or other specific to compiler...
using namespace std;

class A 
{
public:
    void CallFunction ();
};

class B: public A
{
public:
    virtual void bFunction()
        {
            //stuff done here
        }
};

B.cpp

#include "B.h"
void A::CallFunction(){
//use B object here...
}

Referencing to your explanation, that you have tried to change B b; into pointer- it would be okay, if you wouldn't use it in that same place. You can use pointer of undefined class(but declared), because ALL pointers have fixed byte size(4), so compiler doesn't have problems with that. But it knows nothing about the object they are pointing to(simply: knows the size/boundary, not the content).

So as long as you are using the knowledge, that all pointers are same size, you can use them anywhere. But if you want to use the object, they are pointing to, the class of this object must be already defined and known by compiler.

And last clarification: objects may differ in size, unlike pointers. Pointer is a number/index, which indicates the place in RAM, where something is stored(for example index: 0xf6a7b1).

As Joshua M pointed out, the zoom function isn't supported only in Firefox, but you can simply fix this as shown:

div.zoom {
  zoom: 2; /* all browsers */
 -moz-transform: scale(2);  /* Firefox */
}

I know that best way is str.indexOf(s) !== -1; http://hayageek.com/javascript-string-contains/

I suggest another way(str.replace(s1, "") !== str):

var str = "Hello World!", s1 = "ello", s2 = "elloo";_x000D_
alert(str.replace(s1, "") !== str);_x000D_
alert(str.replace(s2, "") !== str);

I think it's possible in Java 9:

animalMap.entrySet().stream()
                .forEach(
                        pair -> Optional.ofNullable(pair.getValue())
                                .ifPresentOrElse(v -> myMap.put(pair.getKey(), v), v -> myList.add(pair.getKey())))
                );

Need the ifPresentOrElse for it to work though. (I think a for loop looks better.)

Count(distinct({fieldname})) is redundant

Simply Count({fieldname}) gives you all the distinct values in that table. It will not (as many presume) just give you the Count of the table [i.e. NOT the same as Count(*) from table]

From http://docs.jboss.org/hibernate/core/3.3/reference/en/html/session-configuration.html#configuration-logging

Here's the list of logger categories:

Category                    Function

org.hibernate.SQL           Log all SQL DML statements as they are executed
org.hibernate.type          Log all JDBC parameters
org.hibernate.tool.hbm2ddl  Log all SQL DDL statements as they are executed
org.hibernate.pretty        Log the state of all entities (max 20 entities) associated with the session at flush time
org.hibernate.cache         Log all second-level cache activity
org.hibernate.transaction   Log transaction related activity
org.hibernate.jdbc          Log all JDBC resource acquisition
org.hibernate.hql.ast.AST   Log HQL and SQL ASTs during query parsing
org.hibernate.secure        Log all JAAS authorization requests
org.hibernate               Log everything (a lot of information, but very useful for troubleshooting) 

Formatted for pasting into a log4j XML configuration file:

<!-- Log all SQL DML statements as they are executed -->
<Logger name="org.hibernate.SQL" level="debug" />
<!-- Log all JDBC parameters -->
<Logger name="org.hibernate.type" level="debug" />
<!-- Log all SQL DDL statements as they are executed -->
<Logger name="org.hibernate.tool.hbm2ddl" level="debug" />
<!-- Log the state of all entities (max 20 entities) associated with the session at flush time -->
<Logger name="org.hibernate.pretty" level="debug" />
<!-- Log all second-level cache activity -->
<Logger name="org.hibernate.cache" level="debug" />
<!-- Log transaction related activity -->
<Logger name="org.hibernate.transaction" level="debug" />
<!-- Log all JDBC resource acquisition -->
<Logger name="org.hibernate.jdbc" level="debug" />
<!-- Log HQL and SQL ASTs during query parsing -->
<Logger name="org.hibernate.hql.ast.AST" level="debug" />
<!-- Log all JAAS authorization requests -->
<Logger name="org.hibernate.secure" level="debug" />
<!-- Log everything (a lot of information, but very useful for troubleshooting) -->
<Logger name="org.hibernate" level="debug" />

NB: Most of the loggers use the DEBUG level, however org.hibernate.type uses TRACE. In previous versions of Hibernate org.hibernate.type also used DEBUG, but as of Hibernate 3 you must set the level to TRACE (or ALL) in order to see the JDBC parameter binding logging.

And a category is specified as such:

<logger name="org.hibernate">
    <level value="ALL" />
    <appender-ref ref="FILE"/>
</logger>

It must be placed before the root element.

"exec nohup setsid your_command"

the nohup allows your_command to continue even though the process that launched may terminate first. If it does, the the SIGNUP signal will be sent to your_command causing it to terminate (unless it catches that signal and ignores it).

The PATCH method is the correct choice here as you're updating an existing resource - the group ID. PUT should only be used if you're replacing a resource in its entirety.

Further information on partial resource modification is available in RFC 5789. Specifically, the PUT method is described as follows:

Several applications extending the Hypertext Transfer Protocol (HTTP) require a feature to do partial resource modification. The existing HTTP PUT method only allows a complete replacement of a document. This proposal adds a new HTTP method, PATCH, to modify an existing HTTP resource.

You need to double escape any RegExp characters (once for the slash in the string and once for the regexp):

  "$TESTONE $TESTONE".replace( new RegExp("\\$TESTONE","gm"),"foo")

Otherwise, it looks for the end of the line and 'TESTONE' (which it never finds).

Personally, I'm not a big fan of building regexp's using strings for this reason. The level of escaping that's needed could lead you to drink. I'm sure others feel differently though and like drinking when writing regexes.

There's always Cygwin.

example code taking all 4 cores on my ubuntu 14.04, python 2.7 64 bit.

import time
import threading


def t():
    with open('/dev/urandom') as f:
        for x in xrange(100):
            f.read(4 * 65535)

if __name__ == '__main__':
    start_time = time.time()
    t()
    t()
    t()
    t()
    print "Sequential run time: %.2f seconds" % (time.time() - start_time)

    start_time = time.time()
    t1 = threading.Thread(target=t)
    t2 = threading.Thread(target=t)
    t3 = threading.Thread(target=t)
    t4 = threading.Thread(target=t)
    t1.start()
    t2.start()
    t3.start()
    t4.start()
    t1.join()
    t2.join()
    t3.join()
    t4.join()
    print "Parallel run time: %.2f seconds" % (time.time() - start_time)

result:

$ python 1.py
Sequential run time: 3.69 seconds
Parallel run time: 4.82 seconds

A thread is an execution context, which is all the information a CPU needs to execute a stream of instructions.

Suppose you're reading a book, and you want to take a break right now, but you want to be able to come back and resume reading from the exact point where you stopped. One way to achieve that is by jotting down the page number, line number, and word number. So your execution context for reading a book is these 3 numbers.

If you have a roommate, and she's using the same technique, she can take the book while you're not using it, and resume reading from where she stopped. Then you can take it back, and resume it from where you were.

Threads work in the same way. A CPU is giving you the illusion that it's doing multiple computations at the same time. It does that by spending a bit of time on each computation. It can do that because it has an execution context for each computation. Just like you can share a book with your friend, many tasks can share a CPU.

On a more technical level, an execution context (therefore a thread) consists of the values of the CPU's registers.

Last: threads are different from processes. A thread is a context of execution, while a process is a bunch of resources associated with a computation. A process can have one or many threads.

Clarification: the resources associated with a process include memory pages (all the threads in a process have the same view of the memory), file descriptors (e.g., open sockets), and security credentials (e.g., the ID of the user who started the process).

In addition to dumping the ordered list of keys alongside the dictionary, another low-tech solution, which has the advantage of being explicit, is to dump the (ordered) list of key-value pairs ordered_dict.items(); loading is a simple OrderedDict(<list of key-value pairs>). This handles an ordered dictionary despite the fact that JSON does not have this concept (JSON dictionaries have no order).

It is indeed nice to take advantage of the fact that json dumps the OrderedDict in the correct order. However, it is in general unnecessarily heavy and not necessarily meaningful to have to read all JSON dictionaries as an OrderedDict (through the object_pairs_hook argument), so an explicit conversion of only the dictionaries that must be ordered makes sense too.

The way via unlist and matrix seems a bit convoluted, and requires you to hard-code the number of elements (this is actually a pretty big no-go. Of course you could circumvent hard-coding that number and determine it at run-time)

I would go a different route, and construct a data frame directly from the list that strsplit returns. For me, this is conceptually simpler. There are essentially two ways of doing this:

1. as.data.frame – but since the list is exactly the wrong way round (we have a list of rows rather than a list of columns) we have to transpose the result. We also clear the rownames since they are ugly by default (but that’s strictly unnecessary!):

   `rownames<-`(t(as.data.frame(strsplit(text, '\\.'))), NULL)
   

2. Alternatively, use rbind to construct a data frame from the list of rows. We use do.call to call rbind with all the rows as separate arguments:

   do.call(rbind, strsplit(text, '\\.'))
   

Both ways yield the same result:

     [,1] [,2] [,3]  [,4]
[1,] "F"  "US" "CLE" "V13"
[2,] "F"  "US" "CA6" "U13"
[3,] "F"  "US" "CA6" "U13"
[4,] "F"  "US" "CA6" "U13"
[5,] "F"  "US" "CA6" "U13"
[6,] "F"  "US" "CA6" "U13"
…

Clearly, the second way is much simpler than the first.

If, like me, you want to make a function pack or something that people can download then it's very simple. Just write your function in a python file and save it as the name you want IN YOUR PYTHON DIRECTORY. Now, in your script where you want to use this, you type:

from FILE NAME import FUNCTION NAME

Note - the parts in capital letters are where you type the file name and function name.

Now you just use your function however it was meant to be.

Example:

FUNCTION SCRIPT - saved at C:\Python27 as function_choose.py

def choose(a):
  from random import randint
  b = randint(0, len(a) - 1)
  c = a[b]
  return(c)

SCRIPT USING FUNCTION - saved wherever

from function_choose import choose
list_a = ["dog", "cat", "chicken"]
print(choose(list_a))

OUTPUT WILL BE DOG, CAT, OR CHICKEN

Hoped this helped, now you can create function packs for download!

--------------------------------This is for Python 2.7-------------------------------------

Reloading existing classes with existing data is likely to break things.

You can load new code into new class loaders relatively easily:

ClassLoader loader = URLClassLoader.newInstance(
    new URL[] { yourURL },
    getClass().getClassLoader()
);
Class<?> clazz = Class.forName("mypackage.MyClass", true, loader);
Class<? extends Runnable> runClass = clazz.asSubclass(Runnable.class);
// Avoid Class.newInstance, for it is evil.
Constructor<? extends Runnable> ctor = runClass.getConstructor();
Runnable doRun = ctor.newInstance();
doRun.run();

Class loaders no longer used can be garbage collected (unless there is a memory leak, as is often the case with using ThreadLocal, JDBC drivers, java.beans, etc).

If you want to keep the object data, then I suggest a persistence mechanism such as Serialisation, or whatever you are used to.

Of course debugging systems can do fancier things, but are more hacky and less reliable.

It is possible to add new classes into a class loader. For instance, using URLClassLoader.addURL. However, if a class fails to load (because, say, you haven't added it), then it will never load in that class loader instance.

MySQL casts to Decimal:

Cast bare integer to decimal:

select cast(9 as decimal(4,2));       //prints 9.00

Cast Integers 8/5 to decimal:

select cast(8/5 as decimal(11,4));    //prints 1.6000

Cast string to decimal:

select cast(".885" as decimal(11,3));   //prints 0.885

Cast two int variables into a decimal

mysql> select 5 into @myvar1;
Query OK, 1 row affected (0.00 sec)

mysql> select 8 into @myvar2;
Query OK, 1 row affected (0.00 sec)

mysql> select @myvar1/@myvar2;   //prints 0.6250

Cast decimal back to string:

select cast(1.552 as char(10));   //shows "1.552"

Step 1. Download the latest Gradle distribution

Step 2. Unpack the distribution

Microsoft Windows users

Create a new directory C:\Gradle with File Explorer.

Open a second File Explorer window and go to the directory where the Gradle distribution was downloaded. Double-click the ZIP archive to expose the content. Drag the content folder gradle-4.1 to your newly created C:\Gradle folder.

Alternatively you can unpack the Gradle distribution ZIP into C:\Gradle using an archiver tool of your choice.

Step 3. Configure your system environment

Microsoft Windows users

In File Explorer right-click on the This PC (or Computer) icon, then click Properties -> Advanced System Settings -> Environmental Variables.

Under System Variables select Path, then click Edit. Add an entry for C:\Gradle\gradle-4.1\bin. Click OK to save.

Step 4. Verify your installation

I hope my late answer can be of some help.
This will go to rails database console.

rails db

pretty print your query output

.headers on
.mode columns
(turn headers on and show database data in column mode )

Show the tables

.table

'.help' to see help.
Or use SQL statements like 'Select * from cars'

Single command without ps variables when using JSON as body {lastName:"doe"} for POST api call:

Invoke-WebRequest -Headers @{"Authorization" = "Bearer N-1234ulmMGhsDsCAEAzmo1tChSsq323sIkk4Zq9"} `
                  -Method POST `
                  -Body (@{"lastName"="doe";}|ConvertTo-Json) `
                  -Uri https://api.dummy.com/getUsers `
                  -ContentType application/json

Prestaul's answer was helpful, but it didn't quite work for me. The jQuery way to select an object by id didn't work. I had to use

document.getElementById("a").className

instead of

$("#a").className

For those who are trying to get heroku to work on codeanywhere IDE:

heroku login
git remote add heroku [email protected]:MyApp.git
git push heroku

If the method accepts non-primitive data type then the following method can be used to invoke a private method of any class:

public static Object genericInvokeMethod(Object obj, String methodName,
            Object... params) {
        int paramCount = params.length;
        Method method;
        Object requiredObj = null;
        Class<?>[] classArray = new Class<?>[paramCount];
        for (int i = 0; i < paramCount; i++) {
            classArray[i] = params[i].getClass();
        }
        try {
            method = obj.getClass().getDeclaredMethod(methodName, classArray);
            method.setAccessible(true);
            requiredObj = method.invoke(obj, params);
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }

        return requiredObj;
    }

The Parameter accepted are obj, methodName and the parameters. For example

public class Test {
private String concatString(String a, String b) {
    return (a+b);
}
}

Method concatString can be invoked as

Test t = new Test();
    String str = (String) genericInvokeMethod(t, "concatString", "Hello", "Mr.x");

Xcode 10

1. drag-n-drop a project into another project - is called cross-project references^[About]
2. add the added project as a build dependency - is called Explicit dependency^[About]

//Xcode 10
Build Phases -> Target Dependencies -> + Add items 

//Xcode 11
Build Phases -> Dependencies -> + Add items 

In Choose items to add: dialog you will see only targets from your project and the sub-project

This is a really late response, but I came up with this to solve a particular problem I had with DiskInternals LinuxReader appending '.efs_ntfs' to files that it saved to non-NTFS (FAT32) directories :

@echo off
REM %1 is the directory to recurse through and %2 is the file extension to remove
for /R "%1" %%f in (*.%2) do (
    REM Path (sans drive) is given by %%~pf ; drive is given by %%~df
    REM file name (sans ext) is given by %%~nf ; to 'rename' files, move them
    copy "%%~df%%~pf%%~nf.%2" "%%~df%%~pf%%~nf"
    echo "%%~df%%~pf%%~nf.%2" copied to "%%~df%%~pf%%~nf"
echo.
)
pause

This will do it if you want to build the posted query without middleware:

app.post("/register/",function(req,res){
    var bodyStr = '';
    req.on("data",function(chunk){
        bodyStr += chunk.toString();
    });
    req.on("end",function(){
        res.send(bodyStr);
    });

});

That will send this to the browser

email=emailval&password1=pass1val&password2=pass2val

It's probably better to use middleware though so you don't have to write this over and over in each route.

There is also EXISTS:

SELECT count(*) AS post_ct
FROM   posts p
WHERE  EXISTS (SELECT FROM votes v WHERE v.post_id = p.id);

In Postgres and with multiple entries on the n-side like you probably have, it's generally faster than count(DISTINCT post_id):

SELECT count(DISTINCT p.id) AS post_ct
FROM   posts p
JOIN   votes v ON v.post_id = p.id;

The more rows per post there are in votes, the bigger the difference in performance. Test with EXPLAIN ANALYZE.

count(DISTINCT post_id) has to read all rows, sort or hash them, and then only consider the first per identical set. EXISTS will only scan votes (or, preferably, an index on post_id) until the first match is found.

If every post_id in votes is guaranteed to be present in the table posts (referential integrity enforced with a foreign key constraint), this short form is equivalent to the longer form:

SELECT count(DISTINCT post_id) AS post_ct
FROM   votes;

May actually be faster than the EXISTS query with no or few entries per post.

The query you had works in simpler form, too:

SELECT count(*) AS post_ct
FROM  (
    SELECT FROM posts 
    JOIN   votes ON votes.post_id = posts.id 
    GROUP  BY posts.id
    ) sub;

Benchmark

To verify my claims I ran a benchmark on my test server with limited resources. All in a separate schema:

Test setup

Fake a typical post / vote situation:

CREATE SCHEMA y;
SET search_path = y;

CREATE TABLE posts (
  id   int PRIMARY KEY
, post text
);

INSERT INTO posts
SELECT g, repeat(chr(g%100 + 32), (random()* 500)::int)  -- random text
FROM   generate_series(1,10000) g;

DELETE FROM posts WHERE random() > 0.9;  -- create ~ 10 % dead tuples

CREATE TABLE votes (
  vote_id serial PRIMARY KEY
, post_id int REFERENCES posts(id)
, up_down bool
);

INSERT INTO votes (post_id, up_down)
SELECT g.* 
FROM  (
   SELECT ((random()* 21)^3)::int + 1111 AS post_id  -- uneven distribution
        , random()::int::bool AS up_down
   FROM   generate_series(1,70000)
   ) g
JOIN   posts p ON p.id = g.post_id;

All of the following queries returned the same result (8093 of 9107 posts had votes).
I ran 4 tests with EXPLAIN ANALYZE ant took the best of five on Postgres 9.1.4 with each of the three queries and appended the resulting total runtimes.

1. As is.

2. After ..

   ANALYZE posts;
   ANALYZE votes;
   

3. After ..

   CREATE INDEX foo on votes(post_id);
   

4. After ..

   VACUUM FULL ANALYZE posts;
   CLUSTER votes using foo;
   

count(*) ... WHERE EXISTS

1. 253 ms
2. 220 ms
3. 85 ms -- winner (seq scan on posts, index scan on votes, nested loop)
4. 85 ms

count(DISTINCT x) - long form with join

1. 354 ms
2. 358 ms
3. 373 ms -- (index scan on posts, index scan on votes, merge join)
4. 330 ms

count(DISTINCT x) - short form without join

1. 164 ms
2. 164 ms
3. 164 ms -- (always seq scan)
4. 142 ms

Best time for original query in question:

• 353 ms

For simplified version:

• 348 ms

@wildplasser's query with a CTE uses the same plan as the long form (index scan on posts, index scan on votes, merge join) plus a little overhead for the CTE. Best time:

• 366 ms

Index-only scans in the upcoming PostgreSQL 9.2 can improve the result for each of these queries, most of all for EXISTS.

Related, more detailed benchmark for Postgres 9.5 (actually retrieving distinct rows, not just counting):

• Select first row in each GROUP BY group?

The problem with Get-Credential is that it will always prompt for a password. There is a way around this however but it involves storing the password as a secure string on the filesystem.

The following article explains how this works:

Using PSCredentials without a prompt

In summary, you create a file to store your password (as an encrypted string). The following line will prompt for a password then store it in c:\mysecurestring.txt as an encrypted string. You only need to do this once:

read-host -assecurestring | convertfrom-securestring | out-file C:\mysecurestring.txt

Wherever you see a -Credential argument on a PowerShell command then it means you can pass a PSCredential. So in your case:

$username = "domain01\admin01"
$password = Get-Content 'C:\mysecurestring.txt' | ConvertTo-SecureString
$cred = new-object -typename System.Management.Automation.PSCredential `
         -argumentlist $username, $password

$serverNameOrIp = "192.168.1.1"
Restart-Computer -ComputerName $serverNameOrIp `
                 -Authentication default `
                 -Credential $cred
                 <any other parameters relevant to you>

You may need a different -Authentication switch value because I don't know your environment.

If you use setState inside componentDidUpdate it updates the component, resulting in a call to componentDidUpdate which subsequently calls setState again resulting in the infinite loop. You should conditionally call setState and ensure that the condition violating the call occurs eventually e.g:

componentDidUpdate: function() {
    if (condition) {
        this.setState({..})
    } else {
        //do something else
    }
}

In case you are only updating the component by sending props to it(it is not being updated by setState, except for the case inside componentDidUpdate), you can call setState inside componentWillReceiveProps instead of componentDidUpdate.

You should have a look at numpy if you do matrix manipulation. This is a module mainly written in C, which will be much faster than programming in pure python. Here is an example of how to invert a matrix, and do other matrix manipulation.

from numpy import matrix
from numpy import linalg
A = matrix( [[1,2,3],[11,12,13],[21,22,23]]) # Creates a matrix.
x = matrix( [[1],[2],[3]] )                  # Creates a matrix (like a column vector).
y = matrix( [[1,2,3]] )                      # Creates a matrix (like a row vector).
print A.T                                    # Transpose of A.
print A*x                                    # Matrix multiplication of A and x.
print A.I                                    # Inverse of A.
print linalg.solve(A, x)     # Solve the linear equation system.

You can also have a look at the array module, which is a much more efficient implementation of lists when you have to deal with only one data type.

You can delete the folder itself, as well as all its contents, using shutil.rmtree:

import shutil
shutil.rmtree('/path/to/folder')

shutil.rmtree(path, ignore_errors=False, onerror=None)

Delete an entire directory tree; path must point to a directory (but not a symbolic link to a directory). If ignore_errors is true, errors resulting from failed removals will be ignored; if false or omitted, such errors are handled by calling a handler specified by onerror or, if that is omitted, they raise an exception.

Sorting in an ORDER BY is done by the first column, and then by each additional column in the specified statement.

For instance, consider the following data:

Column1    Column2
=======    =======
1          Smith
2          Jones
1          Anderson
3          Andrews

The query

SELECT Column1, Column2 FROM thedata ORDER BY Column1, Column2

would first sort by all of the values in Column1

and then sort the columns by Column2 to produce this:

Column1    Column2
=======    =======
1          Anderson
1          Smith
2          Jones
3          Andrews

In other words, the data is first sorted in Column1 order, and then each subset (Column1 rows that have 1 as their value) are sorted in order of the second column.

The difference between the two statements you posted is that the rows in the first one would be sorted first by prod_price (price order, from lowest to highest), and then by order of name (meaning that if two items have the same price, the one with the lower alpha value for name would be listed first), while the second would sort in name order only (meaning that prices would appear in order based on the prod_name without regard for price).

sizeof(source) returns sizeof a pointer as source is declared as char *. Correct way to use it is strlen(source).

Next:

printf("%s",source[i]); 

expects string. i.e %s expects string but you are iterating in a loop to print each character. Hence use %c.

However your way of accessing(iterating) a string using the index i is correct and hence there are no other issues in it.

The second one tends to be faster in some browsers, but the main point is that you have to use it because the first one is just not cross-browser. Even though The Times They Are a-Changin'

@kangax (IE 9 preview)

Array.prototype.slice can now convert certain host objects (e.g. NodeList’s) to arrays — something that majority of modern browsers have been able to do for quite a while.

Example:

Array.prototype.slice.call(document.childNodes);

For OS X make sure you have coreutils

$ brew install coreutils
$ bundle

There are two problems:

1. Integer is pass by value, not by reference. Changing the reference inside a method won't be reflected into the passed-in reference in the calling method.
2. Integer is immutable. There's no such method like Integer#set(i). You could otherwise just make use of it.

To get it to work, you need to reassign the return value of the inc() method.

integer = inc(integer);

To learn a bit more about passing by value, here's another example:

public static void main(String... args) {
    String[] strings = new String[] { "foo", "bar" };
    changeReference(strings);
    System.out.println(Arrays.toString(strings)); // still [foo, bar]
    changeValue(strings);
    System.out.println(Arrays.toString(strings)); // [foo, foo]
}
public static void changeReference(String[] strings) {
    strings = new String[] { "foo", "foo" };
}
public static void changeValue(String[] strings) {
    strings[1] = "foo";
}

best way and more simple to center an iframe on your webpage is :

<p align="center"><iframe src="http://www.google.com/" width=500 height="500"></iframe></p>

where width and height will be the size of your iframe in your html page.

Oh My Goodness! Look at the size of my temporary table space! Or... how to shrink temporary tablespaces in Oracle.

Yes I ran a query to see how big my temporary tablespace is:

SQL> SELECT tablespace_name, file_name, bytes
2  FROM dba_temp_files WHERE tablespace_name like 'TEMP%';

TABLESPACE_NAME   FILE_NAME                                 BYTES
----------------- -------------------------------- --------------
TEMP              /the/full/path/to/temp01.dbf     13,917,200,000

The first question you have to ask is why the temporary tablespace is so large. You may know the answer to this off the top of your head. It may be due to a large query that you just run with a sort that was a mistake (I have done that more than once.) It may be due to some other exceptional circumstance. If that is the case then all you need to do to clean up is to shrink the temporary tablespace and move on in life.

But what if you don't know? Before you decide to shrink you may need to do some investigation into the causes of the large tablespace. If this happens on a regular basis then it is possible that your database just needs that much space.

The dynamic performance view

V$TEMPSEG_USAGE

can be very useful in determining the cause.

Maybe you just don't care about the cause and you just need to shrink it. This is your third day on the job. The data in the database is only 200MiB if data and the temporary tablespace is 13GiB - Just shrink it and move on. If it grows again then we will look into the cause. In the mean time I am out of space on that disk volume and I just need the space back.

Let's take a look at shrinking it. It will depend a little on what version of Oracle you are running and how the temporary tablespace was set up.
Oracle will do it's best to keep you from making any horrendous mistakes so we will just try the commands and if they don't work we will shrink in a new way.

First let's try to shrink the datafile. If we can do that then we get back the space and we can worry about why it grew tomorrow.

SQL>
SQL> alter database tempfile '/the/full/path/to/temp01.dbf' resize 256M; 
alter database tempfile '/the/full/path/to/temp01.dbf' resize 256M
*   
ERROR at line 1:
ORA-03297: file contains used data beyond requested RESIZE value

Depending on the error message you may want to try this with different sizes that are smaller than the current site of the file. I have had limited success with this. Oracle will only shrink the file if the temporary tablespace is at the head of the file and if it is smaller than the size you specify. Some old Oracle documentation (they corrected this) said that you could issue the command and the error message would tell you what size you could shrink to. By the time I started working as a DBA this was not true. You just had to guess and re-run the command a bunch of times and see if it worked.

Alright. That didn't work. How about this.

SQL> alter tablespace YOUR_TEMP_TABLESPACE_NAME shrink space keep 256M;

If you are in 11g (Maybee in 10g too) this is it! If it works you may want to go back to the previous command and give it some more tries.

But what if that fails. If the temporary tablespace is the default temporary that was set up when the database was installed then you may need to do a lot more work. At this point I usually re-evaluate if I really need that space back. After all disk space only costs $X.XX a GiB. Usually I don't want to make changes like this during production hours. That means working at 2AM AGAIN! (Not that I really object to working at 2AM - it is just that... Well I like to sleep too. And my wife likes to have me at home at 2AM... not roaming the downtown streets at 4AM trying to remember where I parked my car 3 hours earlier. I have heard of that "telecommuting" thing. I just worry that I will get half way through and then my internet connectivity will fail - then I have to rush downtown to fix it all before folks show up in the morning to use the database.)

Ok... Back to the serious stuff... If the temporary tablespace you want to shrink is your default temporary tablespace, you will have to first create a new temporary tablespace, set it as the default temporary tablespace then drop your old default temporary tablespace and recreate it. Afterwords drop the second temporary table created.

SQL> CREATE TEMPORARY TABLESPACE temp2
2  TEMPFILE '/the/full/path/to/temp2_01.dbf' SIZE 5M REUSE
3  AUTOEXTEND ON NEXT 1M MAXSIZE unlimited
4  EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1M;

Tablespace created.

SQL> ALTER DATABASE DEFAULT TEMPORARY TABLESPACE temp2;

Database altered.

SQL> DROP TABLESPACE temp INCLUDING CONTENTS AND DATAFILES;

Tablespace dropped.


SQL> CREATE TEMPORARY TABLESPACE temp
2  TEMPFILE '/the/full/path/to/temp01.dbf' SIZE 256M REUSE
3  AUTOEXTEND ON NEXT 128M MAXSIZE unlimited
4  EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1M;

Tablespace created.

SQL> ALTER DATABASE DEFAULT TEMPORARY TABLESPACE temp;

Database altered.

SQL> DROP TABLESPACE temp2 INCLUDING CONTENTS AND DATAFILES;

Tablespace dropped.

Hopefully one of these things will help!

And was the code helpful? Because the code you are writing should do the thing:

driver.findElement("locator").clear();

If it does not help, then try this:

WebElement toClear = driver.findElement("locator");
toClear.sendKeys(Keys.CONTROL + "a");
toClear.sendKeys(Keys.DELETE);

maybe you will have to do some convert of the Keys.CONTROL + "a" to CharSequence, but the first approach should do the magic

You have to be clear on what you mean by "JSON".

Some people use the term JSON incorrectly to refer to a plain old JavaScript object, such as [{a: 1}]. This one happens to be an array. If you want to add a new element to the array, just push it, as in

var arr = [{a: 1}];
arr.push({b: 2});

< [{a: 1}, {b: 2}]

The word JSON may also be used to refer to a string which is encoded in JSON format:

var json = '[{"a": 1}]';

Note the (single) quotation marks indicating that this is a string. If you have such a string that you obtained from somewhere, you need to first parse it into a JavaScript object, using JSON.parse:

var obj = JSON.parse(json);

Now you can manipulate the object any way you want, including push as shown above. If you then want to put it back into a JSON string, then you use JSON.stringify:

var new_json = JSON.stringify(obj.push({b: 2}));
'[{"a": 1}, {"b": 1}]'

JSON is also used as a common way to format data for transmission of data to and from a server, where it can be saved (persisted). This is where ajax comes in. Ajax is used both to obtain data, often in JSON format, from a server, and/or to send data in JSON format up to to the server. If you received a response from an ajax request which is JSON format, you may need to JSON.parse it as described above. Then you can manipulate the object, put it back into JSON format with JSON.stringify, and use another ajax call to send the data to the server for storage or other manipulation.

You use the term "JSON file". Normally, the word "file" is used to refer to a physical file on some device (not a string you are dealing with in your code, or a JavaScript object). The browser has no access to physical files on your machine. It cannot read or write them. Actually, the browser does not even really have the notion of a "file". Thus, you cannot just read or write some JSON file on your local machine. If you are sending JSON to and from a server, then of course, the server might be storing the JSON as a file, but more likely the server would be constructing the JSON based on some ajax request, based on data it retrieves from a database, or decoding the JSON in some ajax request, and then storing the relevant data back into its database.

Do you really have a "JSON file", and if so, where does it exist and where did you get it from? Do you have a JSON-format string, that you need to parse, mainpulate, and turn back into a new JSON-format string? Do you need to get JSON from the server, and modify it and then send it back to the server? Or is your "JSON file" actually just a JavaScript object, that you simply need to manipulate with normal JavaScript logic?

Recently ran into a problem with this and a Chrome extension that was corrupting a JSON stream when the response header labeled the content-type as 'text/html' apparently extensions can and will use the response header to alter the content prior to further processing by the browser. Changing the content-type fixed the issue.

The following seems to do the job; I use it to show what has been brought in by a merge.

git whatchanged -m -n 1 -p <SHA-1 hash of merge commit>

You can Use below code to call the web service and get response .Make sure that your Web Service return the response in Data Table Format..This code help you if you using data from SQL Server database .If you you using MYSQL you need to change one thing just replace word NewDataSet from sentence obj2=(SoapObject) obj1.getProperty("NewDataSet"); by DocumentElement

private static final String NAMESPACE = "http://tempuri.org/";
private static final String URL = "http://localhost/Web_Service.asmx?"; // you can use   IP address instead of localhost
private static final String METHOD_NAME = "Function_Name";
private static final String SOAP_ACTION = NAMESPACE + METHOD_NAME;

SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
request.addProperty("parm_name", prm_value); // Parameter for Method
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

try {
    androidHttpTransport.call(SOAP_ACTION, envelope); //call the eb service Method
} catch (Exception e) {
    e.printStackTrace();
} //Next task is to get Response and format that response

SoapObject obj, obj1, obj2, obj3;
obj = (SoapObject) envelope.getResponse();
obj1 = (SoapObject) obj.getProperty("diffgram");
obj2 = (SoapObject) obj1.getProperty("NewDataSet");

for (int i = 0; i < obj2.getPropertyCount(); i++) //the method getPropertyCount() return the number of rows
{
    obj3 = (SoapObject) obj2.getProperty(i);
    obj3.getProperty(0).toString(); //value of column 1
    obj3.getProperty(1).toString(); //value of column 2
    //like that you will get value from each column
}

If you have any problem regarding this you can write me..

For users that want better formatting,

import time
start_time = time.time()
# your script
elapsed_time = time.time() - start_time
time.strftime("%H:%M:%S", time.gmtime(elapsed_time))

will print out, for 2 seconds:

'00:00:02'

and for 7 minutes one second:

'00:07:01'

note that the minimum time unit with gmtime is seconds. If you need microseconds consider the following:

import datetime
start = datetime.datetime.now()
# some code
end = datetime.datetime.now()
elapsed = end - start
print(elapsed)
# or
print(elapsed.seconds,":",elapsed.microseconds) 

strftime documentation

<a [routerLink]="['../']" [queryParams]="{name: 'ferret'}" [fragment]="nose">Ferret Nose</a>

foo://example.com:8042/over/there?name=ferret#nose
\_/   \______________/\_________/ \_________/ \__/
 |           |            |            |        |
scheme    authority      path        query   fragment

For more info - https://angular.io/guide/router#query-parameters-and-fragments

Another easy way:

SELECT Date, User, Status, Notes  
FROM Test_Most_Recent 
WHERE Date in ( SELECT MAX(Date) from Test_Most_Recent group by User)

After a, long, long time of testing 15 different functions/methods found in this questions answers, I now know which is the best (the most versatile and quickest).

I took 15 functions/methods from the answers to this question and made a script to measure the time taken to execute 100 pads. Each pad would pad the number 9 with 2000 zeros. This may seem excessive, and it is, but it gives you a good idea about the scaling of the functions.

The code I used can be found here: https://gist.github.com/NextToNothing/6325915

Feel free to modify and test the code yourself.

In order to get the most versatile method, you have to use a loop. This is because with very large numbers others are likely to fail, whereas, this will succeed.

So, which loop to use? Well, that would be a while loop. A for loop is still fast, but a while loop is just slightly quicker(a couple of ms) - and cleaner.

Answers like those by Wilco, Aleksandar Toplek or Vitim.us will do the job perfectly.

Personally, I tried a different approach. I tried to use a recursive function to pad the string/number. It worked out better than methods joining an array but, still, didn't work as quick as a for loop.

My function is:

function pad(str, max, padder) {
  padder = typeof padder === "undefined" ? "0" : padder;
  return str.toString().length < max ? pad(padder.toString() + str, max, padder) : str;
}

You can use my function with, or without, setting the padding variable. So like this:

pad(1, 3); // Returns '001'
// - Or -
pad(1, 3, "x"); // Returns 'xx1'

Personally, after my tests, I would use a method with a while loop, like Aleksandar Toplek or Vitim.us. However, I would modify it slightly so that you are able to set the padding string.

So, I would use this code:

function padLeft(str, len, pad) {
    pad = typeof pad === "undefined" ? "0" : pad + "";
    str = str + "";
    while(str.length < len) {
        str = pad + str;
    }
    return str;
}

// Usage
padLeft(1, 3); // Returns '001'
// - Or -
padLeft(1, 3, "x"); // Returns 'xx1'

You could also use it as a prototype function, by using this code:

Number.prototype.padLeft = function(len, pad) {
    pad = typeof pad === "undefined" ? "0" : pad + "";
    var str = this + "";
    while(str.length < len) {
        str = pad + str;
    }
    return str;
}

// Usage
var num = 1;

num.padLeft(3); // Returns '001'
// - Or -
num.padLeft(3, "x"); // Returns 'xx1'

I had solved it using xcode builder (but surely this could be achieved with swift using constraints):

Just create a UIView of the relevant size And add a child of type UILabel to that view

and there you go, you have padding :)

Given MyObject that has a DateTime member with a getDateTime() method, you can sort an ArrayList that contains MyObject elements by the DateTime objects like this:

Collections.sort(myList, new Comparator<MyObject>() {
    public int compare(MyObject o1, MyObject o2) {
        return o1.getDateTime().lt(o2.getDateTime()) ? -1 : 1;
    }
});

New to Eclipse and Android development and this hung me up for quite a while. Here's a few things I was doing wrong that may help someone in the future:

1. I was downloading code examples and assuming project name would be the same as the folder name and was looking for that folder name in the project explorer, not finding it, re-importing it, then getting the error message it already existed in the workspace. Yeah. Not proud of that.
2. Didn't click on 'Copy projects into Workspace' and then searched in vain through the workspace when it didn't appear in the project explorer BECAUSE
3. The 'Add project to working sets' option in the Import Projects tab isn't working as far as I can tell, so was not appearing in the project explorer for the active working set (refresh made no difference). Adding project to the working set had to be done after successfully importing it.

You can edit this in your storyboard (if you are using one). Under the table view there is a checkbox that says "Scrolling Enabled". Uncheck it and you're done.

Checking "Wipe user data" in the Launch Options fixed it for me.

Go to Android Virtual Device Manager->Select your device->Start->Check "Wipe user data"->Launch

You wouldn't really want to do this given the existing Instr/InstrRev functions but there are times when it is handy to use EVALUATE to return the result of Excel worksheet functions within VBA

Option Explicit

Public Sub test()

    Debug.Print ContainsSubString("bc", "abc,d")

End Sub
Public Function ContainsSubString(ByVal substring As String, ByVal testString As String) As Boolean
    'substring = string to test for; testString = string to search
    ContainsSubString = Evaluate("=ISNUMBER(FIND(" & Chr$(34) & substring & Chr$(34) & ", " & Chr$(34) & testString & Chr$(34) & "))")

End Function

If you get this error after upgrading to PHP 7.0, then you are using deprecated libraries.

mysql_connect — Open a connection to a MySQL Server
Warning
This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used.

More here: http://php.net/manual/en/function.mysql-connect.php