As of 2019...

...the correct answer is to use async/await with the native fs promises module included in node. Upgrade to Node.js 10 or 11 (already supported by major cloud providers) and do this:

const fs = require('fs').promises;

// This must run inside a function marked `async`:
const file = await fs.readFile('filename.txt', 'utf8');
await fs.writeFile('filename.txt', 'test');

Do not use third-party packages and do not write your own wrappers, that's not necessary anymore.

No longer experimental

Before Node 11.14.0, you would still get a warning that this feature is experimental, but it works just fine and it's the way to go in the future. Since 11.14.0, the feature is no longer experimental and is production-ready.

What if I prefer import instead of require?

It works, too - but only in Node.js versions where this feature is not marked as experimental.

import { promises as fs } from 'fs';

(async () => {
    await fs.writeFile('./test.txt', 'test', 'utf8');
})();

# ENTRY POINT MAIN()
Param(
    [Parameter(Mandatory=$True)]
    [String] $site,
    [Parameter(Mandatory=$True)]
    [String] $application,
    [Parameter(Mandatory=$True)]
    [String] $dir,
    [Parameter(Mandatory=$True)]
    [String] $applicationPool
)

# Create Web IIS Application
function ValidateWebSite ([String] $webSiteName)
{
    $iisWebSite = Get-Website -Name $webSiteName
    if($Null -eq $iisWebSite)
    {
        Write-Error -Message "Error: Web Site Name: $($webSiteName) not exists."  -Category ObjectNotFound
    }
    else
    {
        return 1
    }
}

# Get full path from IIS WebSite
function GetWebSiteDir ([String] $webSiteName)
{
    $iisWebSite = Get-Website -Name $webSiteName
    if($Null -eq $iisWebSite)
    {
        Write-Error -Message "Error: Web Site Name: $($webSiteName) not exists."  -Category ObjectNotFound
    }
    else
    {
        return $iisWebSite.PhysicalPath
    }
}

# Create Directory
function CreateDirectory([string]$fullPath)
{
    $existEvaluation = Test-Path $fullPath -PathType Any
    if($existEvaluation -eq $false)
    {
        new-item $fullPath -itemtype directory
    }
    return 1
}

function CreateApplicationWeb
{
    Param(
        [String] $WebSite,
        [String] $WebSitePath,
        [String] $application,
        [String] $applicationPath,
        [String] $applicationPool
        )
    $fullDir = "$($WebSitePath)\$($applicationPath)"
    CreateDirectory($fullDir)
    New-WebApplication -Site $WebSite -Name $application -PhysicalPath $fullDir -ApplicationPool $applicationPool -Force
}

$fullWebSiteDir = GetWebSiteDir($Site)f($null -ne $fullWebSiteDir)
{
    CreateApplicationWeb -WebSite $Site -WebSitePath $fullWebSiteDir -application $application  -applicationPath $dir -applicationPool $applicationPool
}

You could try using HTML5s sessionStorage it lasts for the duration on the page session. A page session lasts for as long as the browser is open and survives over page reloads and restores. Opening a page in a new tab or window will cause a new session to be initiated.

sessionStorage.setItem("username", "John");

https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage#sessionStorage

Browser Compatibility https://code.google.com/p/sessionstorage/ compatible with every A-grade browser, included iPhone or Android. http://www.nczonline.net/blog/2009/07/21/introduction-to-sessionstorage/

I've fixed this…by simply opening a new tab.

Why it wasn't working I'm not entirely sure, but it could have something to do with how Chrome deals with multiple downloads on a page, perhaps it thought they were spam and just ignored them.

If the URL that you are trying to remove the query string from is the current URL of the PHP script, you can use one of the previously mentioned methods. If you just have a string variable with a URL in it and you want to strip off everything past the '?' you can do:

$pos = strpos($url, "?");
$url = substr($url, 0, $pos);

OpenJPA allows you to specify non-standard annotation to define index on property.

Details are here.

If you want a window as a whole to have a specific size, you can just give it the size you want with the geometry command. That's really all you need to do.

For example:

mw.geometry("500x500")

Though, you'll also want to make sure that the widgets inside the window resize properly, so change how you add the frame to this:

back.pack(fill="both", expand=True)

try Windows Server 2003 Resource Kit Tools

it contains a tail.exe which can be run on Windows system.

https://www.microsoft.com/en-us/download/details.aspx?id=17657

there's a maxlength attribute

<input type="text" name="textboxname" maxlength="100" />

You can also use bitwise operators to truncate the decimal.

e.g.

var x = 9 / 2;
console.log(x); // 4.5

x = ~~x;
console.log(x); // 4

x = -3.7
console.log(~~x) // -3
console.log(x | 0) // -3
console.log(x << 0) // -3

Bitwise operations are considerably more efficient than the Math functions. The double not bitwise operator also seems to slightly outperform the x | 0 and x << 0 bitwise operations by a negligible amount.

// 952 milliseconds
for (var i = 0; i < 1000000; i++) {
    (i * 0.5) | 0;
}

// 1150 milliseconds
for (var i = 0; i < 1000000; i++) {
    (i * 0.5) << 0;
}

// 1284 milliseconds
for (var i = 0; i < 1000000; i++) {
    Math.trunc(i * 0.5);
}

// 939 milliseconds
for (var i = 0; i < 1000000; i++) {
    ~~(i * 0.5);
}

Also worth noting is that the bitwise not operator takes precedence over arithmetic operations, so you may need to surround calculations with parentheses to have the intended result:

x = -3.7

console.log(~~x * 2) // -6
console.log(x * 2 | 0) // -7
console.log(x * 2 << 0) // -7

console.log(~~(x * 2)) // -7
console.log(x * 2 | 0) // -7
console.log(x * 2 << 0) // -7

More info about the double bitwise not operator can be found at Double bitwise NOT (~~)

According to documentation:

random.sample(population, k)

Return a k length list of unique elements chosen from the population sequence. Used for random sampling without replacement.

Basically, it picks k unique random elements, a sample, from a sequence:

>>> import random
>>> c = list(range(0, 15))
>>> c
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
>>> random.sample(c, 5)
[9, 2, 3, 14, 11]

random.sample works also directly from a range:

>>> c = range(0, 15)
>>> c
range(0, 15)
>>> random.sample(c, 5)
[12, 3, 6, 14, 10]

In addition to sequences, random.sample works with sets too:

>>> c = {1, 2, 4}
>>> random.sample(c, 2)
[4, 1]

However, random.sample doesn't work with arbitrary iterators:

>>> c = [1, 3]
>>> random.sample(iter(c), 5)
TypeError: Population must be a sequence or set.  For dicts, use list(d).

Depends on what you care about. If you mean WALL TIME (as in, the time on the clock on your wall), time.clock() provides NO accuracy because it may manage CPU time.

"If I want two columns for anything over 768px, should I apply both classes?"

This should be as simple as:

<div class="row">
      <div class="col-sm-6"></div>
      <div class="col-sm-6"></div>    
</div>

No need to add the col-lg-6 too.

Demo: http://www.bootply.com/73119

this fails:

 DECLARE @vPortalUID NVARCHAR(32)
 SET @vPortalUID='2A66057D-F4E5-4E2B-B2F1-38C51A96D385'
 DECLARE @nPortalUID AS UNIQUEIDENTIFIER
 SET @nPortalUID = CAST(@vPortalUID AS uniqueidentifier)
 PRINT @nPortalUID

this works

 DECLARE @vPortalUID NVARCHAR(36)
 SET @vPortalUID='2A66057D-F4E5-4E2B-B2F1-38C51A96D385'
 DECLARE @nPortalUID AS UNIQUEIDENTIFIER
 SET @nPortalUID = CAST(@vPortalUID AS UNIQUEIDENTIFIER)
 PRINT @nPortalUID

the difference is NVARCHAR(36), your input parameter is too small!

Adding an answer because I was directed here after asking how to run a bash script from python. You receive an error OSError: [Errno 2] file not found if your script takes in parameters. Lets say for instance your script took in a sleep time parameter: subprocess.call("sleep.sh 10") will not work, you must pass it as an array: subprocess.call(["sleep.sh", 10])

You could also use POSIX regular expressions, like

SELECT id FROM groups where name ~* 'administrator'

SELECT 'asd' ~* 'AsD' returns t

Here is my favorite way, which I think is a little less tedious than the "Select for Compare, then Compare With..." steps.

• Open the left side file (not editable)
• F1 Compare Active File With...
• Select the right side file (editable) - You can either select a recent file from the dropdown list, or click any file in the Explorer panel.

This works with any arbitrary files, even ones that are not in the project dir. You can even just create 2 new Untitled files and copy/paste text in there too.

Notice you're not dynamically allocating the variable, which pretty much means the data inside str, in your function, will be lost by the end of the function.

You should have:

char * createStr() {

    char char1= 'm';
    char char2= 'y';

    char *str = malloc(3);
    str[0] = char1;
    str[1] = char2;
    str[2] = '\0';

    return str;

}

Then, when you call the function, the type of the variable that will receive the data must match that of the function return. So, you should have:

char *returned_str = createStr();

It worths mentioning that the returned value must be freed to prevent memory leaks.

char *returned_str = createStr();

//doSomething
...

free(returned_str);

You can use this :

$this->db->select('*');
$this->db->from('mytable');
$this->db->where(name,'Joe');
$bind = array('boss', 'active');
$this->db->where_in('status', $bind);

IF is used to select the field, then the LIKE clause is placed after it:

SELECT  `id` ,  `naam` 
FROM  `klanten` 
WHERE IF(`email` != '', `email`, `email2`) LIKE  '%@domain.nl%'

You can use GAS, which is gcc's backend assembler:

http://linux.die.net/man/1/as

A simple way of doing this is via nargin (N arguments in). The downside is you have to make sure that your argument list and the nargin checks match.

It is worth remembering that all inputs are optional, but the functions will exit with an error if it calls a variable which is not set. The following example sets defaults for b and c. Will exit if a is not present.

function [ output_args ] = input_example( a, b, c )
if nargin < 1
  error('input_example :  a is a required input')
end

if nargin < 2
  b = 20
end

if nargin < 3
  c = 30
end
end

Try run following alter table:

ALTER TABLE public.users 
ALTER COLUMN "password" TYPE varchar(300) 
USING "password"::varchar;

The final keyword is used to declare constants.

final int FILE_TYPE = 3;

The finally keyword is used in a try catch statement to specify a block of code to execute regardless of thrown exceptions.

try
{
  //stuff
}
catch(Exception e)
{
  //do stuff
}
finally
{
  //this is always run
}

And finally (haha), finalize im not entirely sure is a keyword, but there is a finalize() function in the Object class.

Same like "Jayantha" said using css would be the easiest approach, but this might be better,

.ui-autocomplete { max-height: 200px; overflow-y: scroll; overflow-x: hidden;}

Note the only difference is "max-height". this will allow the widget to resize to smaller height but not more than 200px

Look at node-ffi.

node-ffi is a Node.js addon for loading and calling dynamic libraries using pure JavaScript. It can be used to create bindings to native libraries without writing any C++ code.

Using bash regular expressions:

re="http://([^/]+)/"
if [[ $name =~ $re ]]; then echo ${BASH_REMATCH[1]}; fi

Edit - OP asked for explanation of syntax. Regular expression syntax is a large topic which I can't explain in full here, but I will attempt to explain enough to understand the example.

re="http://([^/]+)/"

This is the regular expression stored in a bash variable, re - i.e. what you want your input string to match, and hopefully extract a substring. Breaking it down:

• http:// is just a string - the input string must contain this substring for the regular expression to match
• [] Normally square brackets are used say "match any character within the brackets". So c[ao]t would match both "cat" and "cot". The ^ character within the [] modifies this to say "match any character except those within the square brackets. So in this case [^/] will match any character apart from "/".
• The square bracket expression will only match one character. Adding a + to the end of it says "match 1 or more of the preceding sub-expression". So [^/]+ matches 1 or more of the set of all characters, excluding "/".
• Putting () parentheses around a subexpression says that you want to save whatever matched that subexpression for later processing. If the language you are using supports this, it will provide some mechanism to retrieve these submatches. For bash, it is the BASH_REMATCH array.
• Finally we do an exact match on "/" to make sure we match all the way to end of the fully qualified domain name and the following "/"

Next, we have to test the input string against the regular expression to see if it matches. We can use a bash conditional to do that:

if [[ $name =~ $re ]]; then
    echo ${BASH_REMATCH[1]}
fi

In bash, the [[ ]] specify an extended conditional test, and may contain the =~ bash regular expression operator. In this case we test whether the input string $name matches the regular expression $re. If it does match, then due to the construction of the regular expression, we are guaranteed that we will have a submatch (from the parentheses ()), and we can access it using the BASH_REMATCH array:

• Element 0 of this array ${BASH_REMATCH[0]} will be the entire string matched by the regular expression, i.e. "http://www.google.com/".
• Subsequent elements of this array will be subsequent results of submatches. Note you can have multiple submatch () within a regular expression - The BASH_REMATCH elements will correspond to these in order. So in this case ${BASH_REMATCH[1]} will contain "www.google.com", which I think is the string you want.

Note that the contents of the BASH_REMATCH array only apply to the last time the regular expression =~ operator was used. So if you go on to do more regular expression matches, you must save the contents you need from this array each time.

This may seem like a lengthy description, but I have really glossed over several of the intricacies of regular expressions. They can be quite powerful, and I believe with decent performance, but the regular expression syntax is complex. Also regular expression implementations vary, so different languages will support different features and may have subtle differences in syntax. In particular escaping of characters within a regular expression can be a thorny issue, especially when those characters would have an otherwise different meaning in the given language.

Note that instead of setting the $re variable on a separate line and referring to this variable in the condition, you can put the regular expression directly into the condition. However in bash 3.2, the rules were changed regarding whether quotes around such literal regular expressions are required or not. Putting the regular expression in a separate variable is a straightforward way around this, so that the condition works as expected in all bash versions that support the =~ match operator.

In Go and the mgo driver:

Collection.Find(bson.M{"name": bson.RegEx{"m", ""}}).All(&result)

where result is the struct instance of the sought after type

em is basically CSS property for font sizes.

The em and ex units depend on the font and may be different for each element in the document. The em is simply the font size. In an element with a 2in font, 1em thus means 2in. Expressing sizes, such as margins and paddings, in em means they are related to the font size, and if the user has a big font (e.g., on a big screen) or a small font (e.g., on a handheld device), the sizes will be in proportion. Declarations such as text-indent: 1.5em and margin: 1em are extremely common in CSS.

Source:https://www.w3.org/Style/Examples/007/units

I see that a few important reasons for doing as few new's as possible are missed:

Operator new has a non-deterministic execution time

Calling new may or may not cause the OS to allocate a new physical page to your process this can be quite slow if you do it often. Or it may already have a suitable memory location ready, we don't know. If your program needs to have consistent and predictable execution time (like in a real-time system or game/physics simulation) you need to avoid new in your time critical loops.

Operator new is an implicit thread synchronization

Yes you heard me, your OS needs to make sure your page tables are consistent and as such calling new will cause your thread to acquire an implicit mutex lock. If you are consistently calling new from many threads you are actually serialising your threads (I've done this with 32 CPUs, each hitting on new to get a few hundred bytes each, ouch! that was a royal p.i.t.a. to debug)

The rest such as slow, fragmentation, error prone, etc have already been mentioned by other answers.

No. If such a feature existed it would be listed in this syntax illustration. (Although it's possible there is an undocumented SQL feature, or maybe there is some package that I'm not aware of.)

Swift 5 & iOS 13+ Programmatic Example

1. You must mark your function with @objc, see below example!
2. No parenthesis following after the function name! Just use #selector(name).
3. private or public doesn't matter; you can use private.

Code Example

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    
    let menuButtonImage = UIImage(systemName: "flame")
    let menuButton = UIBarButtonItem(image: menuButtonImage, style: .plain, target: self, action: #selector(didTapMenuButton))
    navigationItem.rightBarButtonItem = menuButton
}

@objc public func didTapMenuButton() {
    print("Hello World")
}

This question has been answered but I feel I should also mention another potential cause. This is a direct result of coming across the same error message but for different reasons. If your list/s are empty the operation will not be performed. check your code for indents and typos

Insert Selected column with condition

INSERT INTO where_to_insert (col_1,col_2) SELECT col1, col2 FROM from_table WHERE condition;

Copy all data from one table to another with the same column name.

INSERT INTO where_to_insert 
SELECT * FROM from_table WHERE condition;

Use JSON5. Don't use JSON.

• Objects and arrays can have trailing commas
• Object keys can be unquoted if they're valid identifiers
• Strings can be single-quoted
• Strings can be split across multiple lines
• Numbers can be hexadecimal (base 16)
• Numbers can begin or end with a (leading or trailing) decimal point.
• Numbers can include Infinity and -Infinity.
• Numbers can begin with an explicit plus (+) sign.
• Both inline (single-line) and block (multi-line) comments are allowed.

http://json5.org/

https://github.com/aseemk/json5

In addition to Marty's excellent Answer, the SystemVerilog specification offers the byte data type. The following declares a 4x8-bit variable (4 bytes), assigns each byte a value, then displays all values:

module tb;

byte b [4];

initial begin
    foreach (b[i]) b[i] = 1 << i;
    foreach (b[i]) $display("Address = %0d, Data = %b", i, b[i]);
    $finish;
end

endmodule

This prints out:

Address = 0, Data = 00000001
Address = 1, Data = 00000010
Address = 2, Data = 00000100
Address = 3, Data = 00001000

This is similar in concept to Marty's reg [7:0] a [0:3];. However, byte is a 2-state data type (0 and 1), but reg is 4-state (01xz). Using byte also requires your tool chain (simulator, synthesizer, etc.) to support this SystemVerilog syntax. Note also the more compact foreach (b[i]) loop syntax.

The SystemVerilog specification supports a wide variety of multi-dimensional array types. The LRM can explain them better than I can; refer to IEEE Std 1800-2005, chapter 5.

import java.io.*;

Process p = Runtime.getRuntime().exec("java -jar map.jar time.rel test.txt debug");

Consider the following if you run into any further problems, but I'm guessing that the above will work for you:

Problems with Runtime.exec()

You need to delimit each parameter name with a ":" at the very least. Technically the name is optional, but it is recommended for readability. So you could write:

- (NSMutableArray*)getBusStops:(NSString*)busStop :(NSSTimeInterval*)timeInterval;

or what you suggested:

- (NSMutableArray*)getBusStops:(NSString*)busStop forTime:(NSSTimeInterval*)timeInterval;

I ran into this issue but had a different fix. It involved updating the Control Panel>Administrative Tools>IIS Manager and reverting my App site's Managed Pipeline from Integrated to Classic.

The breakdown of your declaration and its members is somewhat littered:

Remove the typedef

The typedef is neither required, not desired for class/struct declarations in C++. Your members have no knowledge of the declaration of pos as-written, which is core to your current compilation failure.

Change this:

typedef struct {....} pos;

To this:

struct pos { ... };

Remove extraneous inlines

You're both declaring and defining your member operators within the class definition itself. The inline keyword is not needed so long as your implementations remain in their current location (the class definition)

Return references to *this where appropriate

This is related to an abundance of copy-constructions within your implementation that should not be done without a strong reason for doing so. It is related to the expression ideology of the following:

a = b = c;

This assigns c to b, and the resulting value b is then assigned to a. This is not equivalent to the following code, contrary to what you may think:

a = c;
b = c;

Therefore, your assignment operator should be implemented as such:

pos& operator =(const pos& a)
{
    x = a.x;
    y = a.y;
    return *this;
}

Even here, this is not needed. The default copy-assignment operator will do the above for you free of charge (and code! woot!)

Note: there are times where the above should be avoided in favor of the copy/swap idiom. Though not needed for this specific case, it may look like this:

pos& operator=(pos a) // by-value param invokes class copy-ctor
{
    this->swap(a);
    return *this;
}

Then a swap method is implemented:

void pos::swap(pos& obj)
{
    // TODO: swap object guts with obj
}

You do this to utilize the class copy-ctor to make a copy, then utilize exception-safe swapping to perform the exchange. The result is the incoming copy departs (and destroys) your object's old guts, while your object assumes ownership of there's. Read more the copy/swap idiom here, along with the pros and cons therein.

Pass objects by const reference when appropriate

All of your input parameters to all of your members are currently making copies of whatever is being passed at invoke. While it may be trivial for code like this, it can be very expensive for larger object types. An exampleis given here:

Change this:

bool operator==(pos a) const{
    if(a.x==x && a.y== y)return true;
    else return false;
}

To this: (also simplified)

bool operator==(const pos& a) const
{
    return (x == a.x && y == a.y);
}

No copies of anything are made, resulting in more efficient code.

Finally, in answering your question, what is the difference between a member function or operator declared as const and one that is not?

A const member declares that invoking that member will not modifying the underlying object (mutable declarations not withstanding). Only const member functions can be invoked against const objects, or const references and pointers. For example, your operator +() does not modify your local object and thus should be declared as const. Your operator =() clearly modifies the local object, and therefore the operator should not be const.

Summary

struct pos
{
    int x;
    int y;

    // default + parameterized constructor
    pos(int x=0, int y=0) 
        : x(x), y(y)
    {
    }

    // assignment operator modifies object, therefore non-const
    pos& operator=(const pos& a)
    {
        x=a.x;
        y=a.y;
        return *this;
    }

    // addop. doesn't modify object. therefore const.
    pos operator+(const pos& a) const
    {
        return pos(a.x+x, a.y+y);
    }

    // equality comparison. doesn't modify object. therefore const.
    bool operator==(const pos& a) const
    {
        return (x == a.x && y == a.y);
    }
};

EDIT OP wanted to see how an assignment operator chain works. The following demonstrates how this:

a = b = c;

Is equivalent to this:

b = c;
a = b;

And that this does not always equate to this:

a = c;
b = c;

Sample code:

#include <iostream>
#include <string>
using namespace std;

struct obj
{
    std::string name;
    int value;

    obj(const std::string& name, int value)
        : name(name), value(value)
    {
    }

    obj& operator =(const obj& o)
    {
        cout << name << " = " << o.name << endl;
        value = (o.value+1); // note: our value is one more than the rhs.
        return *this;
    }    
};

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

    obj a("a", 1), b("b", 2), c("c", 3);

    a = b = c;
    cout << "a.value = " << a.value << endl;
    cout << "b.value = " << b.value << endl;
    cout << "c.value = " << c.value << endl;

    a = c;
    b = c;
    cout << "a.value = " << a.value << endl;
    cout << "b.value = " << b.value << endl;
    cout << "c.value = " << c.value << endl;

    return 0;
}

Output

b = c
a = b
a.value = 5
b.value = 4
c.value = 3
a = c
b = c
a.value = 4
b.value = 4
c.value = 3

If you use Custom Actions written in .NET as part of your MSI installer then you have another problem.

The 'shim' that runs these custom actions is always 32bit then your custom action will run 32bit as well, despite what target you specify.

More info & some ninja moves to get around (basically change the MSI to use the 64 bit version of this shim)

Building an MSI in Visual Studio 2005/2008 to work on a SharePoint 64

64-bit Managed Custom Actions with Visual Studio

At the Menu > Visual Studio (mac) > Preferences > Publishing > Apple Developer Accounts > [Select your apple id] > View Details > Create Certificate

To delete unused/invalid certificates, go to website: https://developer.apple.com/account/resources/certificates/list

delete any unwanted certificate there

Next is to create App ID (identifiers), go to website:
https://developer.apple.com/account/resources/identifiers/list

Next, go to website to create provisioning profiles:
https://developer.apple.com/account/resources/profiles/add

use the certificate to bind with your app id.

Next is to download the profiles:
At your mac > At the Menu > Visual Studio (mac) > Preferences > Publishing > Apple Developer Accounts > [Select your apple id] > View Details > Download All Profiles

You can try element[0].scrollTop, in my opinion this solution is faster.

Here you have bigger example - http://cvmlrobotics.blogspot.de/2013/03/angularjs-get-element-offset-position.html

Just for completeness:

pip -V

pip --version

pip list and inside the list you'll find also pip with its version.

\n is used for making separate line;

Example:

System.out.print("I" +'\n'+ "am" +'\n'+ "boy"); 

Result:

I
am
boy

We can also use inplace

library(inplace)
x <- 1
x %+<-% 2

.First() will throw an exception if there's no row to be returned, while .FirstOrDefault() will return the default value (NULL for all reference types) instead.

So if you're prepared and willing to handle a possible exception, .First() is fine. If you prefer to check the return value for != null anyway, then .FirstOrDefault() is your better choice.

But I guess it's a bit of a personal preference, too. Use whichever makes more sense to you and fits your coding style better.

Use this library: import sun.audio.*;

public void Sound(String Path){
    try{
        InputStream in = new FileInputStream(new File(Path));
        AudioStream audios = new AudioStream(in);
        AudioPlayer.player.start(audios);
    }
    catch(Exception e){}
}

Following Stuart's idea, this could be done with a Spliterator like this:

static <T> Stream<T> defaultIfEmpty(Stream<T> stream, Stream<T> defaultStream) {
    final Spliterator<T> spliterator = stream.spliterator();
    final AtomicReference<T> reference = new AtomicReference<>();
    if (spliterator.tryAdvance(reference::set)) {
        return Stream.concat(Stream.of(reference.get()), StreamSupport.stream(spliterator, stream.isParallel()));
    } else {
        return defaultStream;
    }
}

I think this works with parallel Streams as the stream.spliterator() operation will terminate the stream, and then rebuild it as required

In my use-case I needed a default Stream rather than a default value. that's quite easy to change if this is not what you need

It is a hard question in the C/C++ world, with so many elements beyond the standard.

I think header file order is not a serious problem as long as it compiles, like squelart said.

My ideas is: If there is no conflict of symbols in all those headers, any order is OK, and the header dependency issue can be fixed later by adding #include lines to the flawed .h.

The real hassle arises when some header changes its action (by checking #if conditions) according to what headers are above.

For example, in stddef.h in VS2005, there is:

#ifdef  _WIN64
#define offsetof(s,m)   (size_t)( (ptrdiff_t)&(((s *)0)->m) )
#else
#define offsetof(s,m)   (size_t)&(((s *)0)->m)
#endif

Now the problem: If I have a custom header ("custom.h") that needs to be used with many compilers, including some older ones that don't provide offsetof in their system headers, I should write in my header:

#ifndef offsetof
#define offsetof(s,m)   (size_t)&(((s *)0)->m)
#endif

And be sure to tell the user to #include "custom.h" after all system headers, otherwise, the line of offsetof in stddef.h will assert a macro redefinition error.

We pray not to meet any more of such cases in our career.

Plenty of responses already, but you can use this:

Sub runQry(qDefName)
    Dim db As DAO.Database, qd As QueryDef, par As Parameter

    Set db = CurrentDb
    Set qd = db.QueryDefs(qDefName)

    On Error Resume Next
    For Each par In qd.Parameters
        Err.Clear
        par.Value = Eval(par.Name)          'try evaluating param
        If Err.Number <> 0 Then             'failed ?
            par.Value = InputBox(par.Name)  'ask for value
        End If
    Next par
    On Error GoTo 0

    qd.Execute dbFailOnError
End Sub

Sub runQry_test()
    runQry "test"  'qryDef name
End Sub

While Migrating Android application package file (APK) to Android App Bundle (AAB), publishing app into Play Store i faced this issue and got resolved like this below...

When building .aab file you get prompted for the location to store key export path as below:

In second image you find Encrypted key export path Location where our .pepk will store in the specific folder while generating .aab file.

Once you log in to the Google Play Console with play store credential: select your project from left side choose App Signing option Release Management>>App Signing

you will find the Google App Signing Certification window ACCEPT it.

After that you will find three radio button select **

Upload a key exported from Android Studio radio button

**, it will expand you APP SIGNING PRIVATE KEY button as below

click on the button and choose the .pepk file (We Stored while generating .aab file as above)

Read the all other option and submit.

Once Successfully you can go back to app release and browse the .aab file and complete RollOut...

@Ambilpura

You are entering a null value to nextInt, it will fail if you give a null value...

i have added a null check to the piece of code

Try this code:

import java.util.Scanner;
class MyClass
{
     public static void main(String args[]){

                Scanner scanner = new Scanner(System.in);
                int eid,sid;
                String ename;
                System.out.println("Enter Employeeid:");
                     eid=(scanner.nextInt());
                System.out.println("Enter EmployeeName:");
                     ename=(scanner.next());
                System.out.println("Enter SupervisiorId:");
                    if(scanner.nextLine()!=null&&scanner.nextLine()!=""){//null check
                     sid=scanner.nextInt();
                     }//null check
        }
}

Just put this code in KeyTyped event:

    if ((jtextField.getText() + evt.getKeyChar()).length() > 20) {
        evt.consume();
    }

Where "20" is the maximum number of characters that you want.

I have now been able to get Keyboard input in Swift by using the following:

In my main.swift file I declared a variable i and assigned to it the function GetInt() which I defined in Objective C. Through a so called Bridging Header where I declared the function prototype for GetInt I could link to main.swift. Here are the files:

main.swift:

var i: CInt = GetInt()
println("Your input is \(i) ");

Bridging Header:

#include "obj.m"

int GetInt();

obj.m:

#import <Foundation/Foundation.h>
#import <stdio.h>
#import <stdlib.h>

int GetInt()
{
    int i;
    scanf("%i", &i);
    return i;
}

In obj.m it is possible to include the c standard output and input, stdio.h, as well as the c standard library stdlib.h which enables you to program in C in Objective-C, which means there is no need for including a real swift file like user.c or something like that.

Hope I could help,

Edit: It is not possible to get String input through C because here I am using the CInt -> the integer type of C and not of Swift. There is no equivalent Swift type for the C char*. Therefore String is not convertible to string. But there are fairly enough solutions around here to get String input.

Raul

My solution for a better user experience:

HTML

<input type="tel">

jQuery

$('[type=tel]').on('change', function(e) {
  $(e.target).val($(e.target).val().replace(/[^\d\.]/g, ''))
})
$('[type=tel]').on('keypress', function(e) {
  keys = ['0','1','2','3','4','5','6','7','8','9','.']
  return keys.indexOf(event.key) > -1
})

Details:

First of all, input types:

number shows up/down arrows shrinking the actual input space, I find them ugly and are only useful if the number represents a quantity (things like phones, area codes, IDs... don't need them) tel provides similar browser validations of number without arrows

Using [number / tel] also helps showing numeric keyboard on mobile devices.

For the JS validation I ended up needing 2 functions, one for the normal user input (keypress) and the other for a copy+paste fix (change), other combinations would give me a terrible user experience.

I use the more reliable KeyboardEvent.key instead of the now deprecated KeyboardEvent.charCode

And depending of your browser support you can consider using Array.prototype.includes() instead of the poorly named Array.prototype.indexOf() (for true / false results)

I encounter this problem when creating workspace/project in eclipse 3.7.2. Then I open it using Kepler (4.3). So simply open the project by the eclipse version you created it (3.7.2 in my case) solves the problem. Hope it helps.

Set a default input value as per this GitHub issue.

HTML

<input type="text" id="datetimepicker-input"></input>

jQuery

var d = new Date();

var month = d.getMonth()+1;
var day = d.getDate();

var output = d.getFullYear() + '/' +
(month<10 ? '0' : '') + month + '/' +
(day<10 ? '0' : '') + day;

$("#datetimepicker-input").val(output + " 00:01:00");

jsFiddle
JavaScript date source

EDIT - setLocalDate/setDate

var d = new Date();
var month = d.getMonth();
var day = d.getDate();
var year = d.getFullYear();

$('#startdatetime-from').datetimepicker({
    language: 'en',
    format: 'yyyy-MM-dd hh:mm'
});
$("#startdatetime-from").data('DateTimePicker').setLocalDate(new Date(year, month, day, 00, 01));

jsFiddle

Unfortunately, IE and VLC don't really work right now... I found this on the vlc forums:

VLC included activex support up until version 0.8.6, I believe. At that time, you could
access a cab on the videolan and therefore 'automatic' installation into IE and Firefox
family browsers was fine. Thereafter support for activex seemed to stop; no cab, no
activex component.

VLC 1.0.* once again contains activex support, and that's brilliant. A good decision in
my opinion. What's lacking is a cab installer for the latest version.

This basically means that even if you found a way to make it work, anyone trying to view the video on your site in IE would have to download and install the entire VLC player program to have it work in IE, and users probably don't want to do that. I can't get your code to work in firefox or IE8 on my boyfriends computer, although I might not have been putting the video address in properly... I get some message about no video output...

I'll take a guess and say it probably works for you locally because you have VLC installed, but your server doesn't. Unfortunately you'll probably have to use Windows media player or something similar (Microsoft is great at forcing people to use their stuff!)

And if you're wondering, it appears that the reason there is no cab file is because of the cost of having an active-x control signed.

It's rather simple to have your page use VLC for firefox and chrome users, and Windows Media Player for IE users, if that would work for you.

set() is exactly what you want. O(1) lookups, and smaller than a dict.

To check if a folder exists or not, you can simply use the exists() method:

// Create a File object representing the folder 'A/B'
def folder = new File( 'A/B' )

// If it doesn't exist
if( !folder.exists() ) {
  // Create all folders up-to and including B
  folder.mkdirs()
}

// Then, write to file.txt inside B
new File( folder, 'file.txt' ).withWriterAppend { w ->
  w << "Some text\n"
}

In MacBook press command+, and then go to plug-in and search for Lombok and then install it.

It will work without restarting IntelliJ IDEA IDE if doesn't work then please try with restart.

Many thanks

The actual way to end a program, is to call

raise SystemExit

It's what sys.exit does, anyway.

A plain SystemExit, or with None as a single argument, sets the process' exit code to zero. Any non-integer exception value (raise SystemExit("some message")) prints the exception value to sys.stderr and sets the exit code to 1. An integer value sets the process' exit code to the value:

$ python -c "raise SystemExit(4)"; echo $?
4

They are largely the same, except that:

The alias declaration is compatible with templates, whereas the C style typedef is not.

Solution 1: Log stdout AND stderr concurrently in realtime

A simple solution which logs both stdout AND stderr concurrently, line-by-line in realtime into a log file.

import subprocess as sp
from concurrent.futures import ThreadPoolExecutor


def log_popen_pipe(p, stdfile):

    with open("mylog.txt", "w") as f:

        while p.poll() is None:
            f.write(stdfile.readline())
            f.flush()

        # Write the rest from the buffer
        f.write(stdfile.read())


with sp.Popen(["ls"], stdout=sp.PIPE, stderr=sp.PIPE, text=True) as p:

    with ThreadPoolExecutor(2) as pool:
        r1 = pool.submit(log_popen_pipe, p, p.stdout)
        r2 = pool.submit(log_popen_pipe, p, p.stderr)
        r1.result()
        r2.result()

Solution 2: A function read_popen_pipes() that allows you to iterate over both pipes (stdout/stderr), concurrently in realtime

import subprocess as sp
from queue import Queue, Empty
from concurrent.futures import ThreadPoolExecutor


def enqueue_output(file, queue):
    for line in iter(file.readline, ''):
        queue.put(line)
    file.close()


def read_popen_pipes(p):

    with ThreadPoolExecutor(2) as pool:
        q_stdout, q_stderr = Queue(), Queue()

        pool.submit(enqueue_output, p.stdout, q_stdout)
        pool.submit(enqueue_output, p.stderr, q_stderr)

        while True:

            if p.poll() is not None and q_stdout.empty() and q_stderr.empty():
                break

            out_line = err_line = ''

            try:
                out_line = q_stdout.get_nowait()
                err_line = q_stderr.get_nowait()
            except Empty:
                pass

            yield (out_line, err_line)

# The function in use:

with sp.Popen(["ls"], stdout=sp.PIPE, stderr=sp.PIPE, text=True) as p:

    for out_line, err_line in read_popen_pipes(p):
        print(out_line, end='')
        print(err_line, end='')

    p.poll()

You can use Eclipse's "Restore from local history" to restore your old R file if it has been deleted. After that you possibly see what keeps Eclipse from building your files (I've seen other errors than before which really helped fixing the problem).

You dont need jquery-migrate. Summarizing previous answers, here is a working html:

<html>
<body>
  <a id='linkButton'>ClickMe</a>
  <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
  <link href="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.0.1/css/toastr.css" rel="stylesheet"/>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.0.1/js/toastr.js"></script>
  <script type="text/javascript">
  $(document).ready(function() {
    toastr.options.timeOut = 1500; // 1.5s
    toastr.info('Page Loaded!');
    $('#linkButton').click(function() {
       toastr.success('Click Button');
    });
  });
  </script>
</body>
</html>

If you are sure you want to remove all commit history, simply delete the .git directory in your project root (note that it's hidden). Then initialize a new repository in the same folder and link it to the GitHub repository:

git init
git remote add origin [email protected]:user/repo

now commit your current version of code

git add *
git commit -am 'message'

and finally force the update to GitHub:

git push -f origin master

However, I suggest backing up the history (the .git folder in the repository) before taking these steps!

Use .formatDate( format, date, settings )

http://docs.jquery.com/UI/Datepicker/formatDate

Use the time gap between pause and resume from background to determine whether it is awake from background

In Custom Application

private static boolean isInBackground;
private static boolean isAwakeFromBackground;
private static final int backgroundAllowance = 10000;

public static void activityPaused() {
    isInBackground = true;
    final Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            if (isInBackground) {
                isAwakeFromBackground = true;
            }
        }
    }, backgroundAllowance);
    Log.v("activity status", "activityPaused");
}

public static void activityResumed() {
    isInBackground = false;
    if(isAwakeFromBackground){
        // do something when awake from background
        Log.v("activity status", "isAwakeFromBackground");
    }
    isAwakeFromBackground = false;
    Log.v("activity status", "activityResumed");
}

In BaseActivity Class

@Override
protected void onResume() {
  super.onResume();
  MyApplication.activityResumed();
}

@Override
protected void onPause() {
  super.onPause();
  MyApplication.activityPaused();
}

In addition to @dhaval-jivani answer.

I've updated the project github project to latest version of constraint layout v.1.1.0-beta3

I've measured and compared the time of onCreate method and time between a start of onCreate and end of execution of last preformDraw method which visible in CPU monitor. All test were done on Samsung S5 mini with android 6.0.1 Here results:

Fresh start (first screen opening after application launch)

Relative Layout

OnCreate: 123ms

Last preformDraw time - OnCreate time: 311.3ms

Constraint Layout

OnCreate: 120.3ms

Last preformDraw time - OnCreate time: 310ms

Besides that, I've checked performance test from this article , here the code and found that on loop counts less than 100 constraint layout variant is faster during execution of inflating, measure, and layout then variants with Relative Layout. And on old Android devices, like Samsung S3 with Android 4.3, the difference is bigger.

As a conclusion I agree with comments from the article:

Does it worth to refactor old views switch on it from RelativeLayout or LinearLayout?

As always: It depends

I wouldn’t refactor anything unless you either have a performance problem with your current layout hierarchy or you want to make significant changes to the layout anyway. Though I haven’t measured it lately, I haven’t found any performance issues in the last releases. So I think you should be safe to use it. but – as I’v said – don’t just migrate for the sake of migrating. Only do so, if there’s a need for and benefit from it. For new layouts, though, I nearly always use ConstraintLayout. It’s so much better compare to what we had before.

You can use concat:

In [11]: pd.concat([df1['c'], df2['c']], axis=1, keys=['df1', 'df2'])
Out[11]: 
                 df1       df2
2014-01-01       NaN -0.978535
2014-01-02 -0.106510 -0.519239
2014-01-03 -0.846100 -0.313153
2014-01-04 -0.014253 -1.040702
2014-01-05  0.315156 -0.329967
2014-01-06 -0.510577 -0.940901
2014-01-07       NaN -0.024608
2014-01-08       NaN -1.791899

[8 rows x 2 columns]

The axis argument determines the way the DataFrames are stacked:

df1 = pd.DataFrame([1, 2, 3])
df2 = pd.DataFrame(['a', 'b', 'c'])

pd.concat([df1, df2], axis=0)
   0
0  1
1  2
2  3
0  a
1  b
2  c

pd.concat([df1, df2], axis=1)

   0  0
0  1  a
1  2  b
2  3  c

I just posted a fix here that would also apply in this case - basically, you do a hex find-and-replace in your external library to make it think that it's ARMv7s code. You should be able to use lipo to break it into 3 static libraries, duplicate / modify the ARMv7 one, then use lipo again to assemble a new library for all 4 architectures.

I get the same error in Chrome after pasting code copied from jsfiddle.

If you select all the code from a panel in jsfiddle and paste it into the free text editor Notepad++, you should be able to see the problem character as a question mark "?" at the very end of your code. Delete this question mark, then copy and paste the code from Notepad++ and the problem will be gone.

You can use as below,

Select X.a, X.b, Y.c from (
                Select X.a as a, sum (b) as sum_b from name_table X
                group by X.a)X
left join from name_table Y on Y.a = X.a

Example;

CREATE TABLE #products (
    product_name VARCHAR(MAX),
    code varchar(3),
    list_price [numeric](8, 2) NOT NULL
);

INSERT INTO #products VALUES ('paku', 'ACE', 2000)
INSERT INTO #products VALUES ('paku', 'ACE', 2000)
INSERT INTO #products VALUES ('Dinding', 'ADE', 2000)
INSERT INTO #products VALUES ('Kaca', 'AKB', 2000)
INSERT INTO #products VALUES ('paku', 'ACE', 2000)

--SELECT * FROM #products 
SELECT distinct x.code, x.SUM_PRICE, product_name FROM (SELECT code, SUM(list_price) as SUM_PRICE From #products 
               group by code)x
left join #products y on y.code=x.code

DROP TABLE #products

Here's another instance similar to the examples above that you may only have one config file define where CORS is: There were two web.config files on the IIS server on the path in different directories, and one of them was hidden in the virtual directory. To solve it I deleted the root level config file since the path was using the config file in the virtual directory. Have to choose one or the other.

URL called:  'https://example.com/foo/bar'
                     ^              ^
      CORS config file in root      virtual directory with another CORS config file
          deleted this config             other sites using this

Probably good for small results, works in all versions of TSQL:

SELECT 
        * 
FROM
     (SELECT TOP (N) * 
      FROM 
            (SELECT TOP (M + N - 1) 
             FROM 
                   Table
             ORDER BY 
                      MyColumn) qasc
      ORDER BY 
               MyColumn DESC) qdesc
 ORDER BY 
         MyColumn

there is another solution to download a web page in ajax. But I am referring to a page that must first be processed and then downloaded.

First you need to separate the page processing from the results download.

1) Only the page calculations are made in the ajax call.

$.post("CalculusPage.php", { calculusFunction: true, ID: 29, data1: "a", data2: "b" },

       function(data, status) 
       {
            if (status == "success") 
            {
                /* 2) In the answer the page that uses the previous calculations is downloaded. For example, this can be a page that prints the results of a table calculated in the ajax call. */
                window.location.href = DownloadPage.php+"?ID="+29;
            }               
       }
);

// For example: in the CalculusPage.php

    if ( !empty($_POST["calculusFunction"]) ) 
    {
        $ID = $_POST["ID"];

        $query = "INSERT INTO ExamplePage (data1, data2) VALUES ('".$_POST["data1"]."', '".$_POST["data2"]."') WHERE id = ".$ID;
        ...
    }

// For example: in the DownloadPage.php

    $ID = $_GET["ID"];

    $sede = "SELECT * FROM ExamplePage WHERE id = ".$ID;
    ...

    $filename="Export_Data.xls";
    header("Content-Type: application/vnd.ms-excel");
    header("Content-Disposition: inline; filename=$filename");

    ...

I hope this solution can be useful for many, as it was for me.

You can use strtol for that:

long x;
if (argc < 2)
    /* handle error */

x = strtol(argv[1], NULL, 10);

Alternatively, if you're using C99 or better you could explore strtoimax.

Try the below query

CREATE TABLE card_types (
  card_type_id int(11) NOT NULL auto_increment,
  name varchar(50) NOT NULL default '',
  PRIMARY KEY  (card_type_id),
) ENGINE = MyISAM ;

In order to add the file to the email as an attachment, it will need to be stored on the server briefly. It's trivial, though, to place it in a tmp location then delete it after you're done with it.

As for emailing, Zend Mail has a very easy to use interface for dealing with email attachments. We run with the whole Zend Framework installed, but I'm pretty sure you could just install the Zend_Mail library without needing any other modules for dependencies.

With Zend_Mail, sending an email with an attachment is as simple as:

$mail = new Zend_Mail();
$mail->setSubject("My Email with Attachment");
$mail->addTo("[email protected]");
$mail->setBodyText("Look at the attachment");
$attachment = $mail->createAttachment(file_get_contents('/path/to/file'));
$mail->send();

If you're looking for a one-file-package to do the whole form/email/attachment thing, I haven't seen one. But the individual components are certainly available and easy to assemble. Trickiest thing of the whole bunch is the email attachment, which the above recommendation makes very simple.

When you run a program in python, the interpreter compiles it to bytecode first (this is an oversimplification) and stores it in the __pycache__ folder. If you look in there you will find a bunch of files sharing the names of the .py files in your project's folder, only their extensions will be either .pyc or .pyo. These are bytecode-compiled and optimized bytecode-compiled versions of your program's files, respectively.

As a programmer, you can largely just ignore it... All it does is make your program start a little faster. When your scripts change, they will be recompiled, and if you delete the files or the whole folder and run your program again, they will reappear (unless you specifically suppress that behavior).

When you're sending your code to other people, the common practice is to delete that folder, but it doesn't really matter whether you do or don't. When you're using version control (git), this folder is typically listed in the ignore file (.gitignore) and thus not included.

If you are using cpython (which is the most common, as it's the reference implementation) and you don't want that folder, then you can suppress it by starting the interpreter with the -B flag, for example

python -B foo.py

Another option, as noted by tcaswell, is to set the environment variable PYTHONDONTWRITEBYTECODE to any value (according to python's man page, any "non-empty string").

Assuming they always exist and are not part of your data, this will work:

declare @string varchar(8000) = '23;chair,red [$3]'
select substring(@string, charindex(';', @string) + 1, charindex(' [', @string) - charindex(';', @string) - 1)

Float the #list and #similar the right and add clear: right; to #similar

Like so:

#map { float:left; width:700px; height:500px; }
#list { float:right; width:200px; background:#eee; list-style:none; padding:0; }
#similar { float:right; width:200px; background:#000; clear:right; } 


<div id="map"></div>        
<ul id="list"></ul>
<div id="similar">this text should be below, not next to ul.</div>

You might need a wrapper(div) around all of them though that's the same width of the left and right element.

Such simple UIViewController extension can be used

//MARK: - Observers
extension UIViewController {

    func addObserverForNotification(notificationName: String, actionBlock: (NSNotification) -> Void) {
        NSNotificationCenter.defaultCenter().addObserverForName(notificationName, object: nil, queue: NSOperationQueue.mainQueue(), usingBlock: actionBlock)
    }

    func removeObserver(observer: AnyObject, notificationName: String) {
        NSNotificationCenter.defaultCenter().removeObserver(observer, name: notificationName, object: nil)
    }
}

//MARK: - Keyboard observers
extension UIViewController {

    typealias KeyboardHeightClosure = (CGFloat) -> ()

    func addKeyboardChangeFrameObserver(willShow willShowClosure: KeyboardHeightClosure?,
        willHide willHideClosure: KeyboardHeightClosure?) {
            NSNotificationCenter.defaultCenter().addObserverForName(UIKeyboardWillChangeFrameNotification,
                object: nil, queue: NSOperationQueue.mainQueue(), usingBlock: { [weak self](notification) in
                    if let userInfo = notification.userInfo,
                        let frame = (userInfo[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.CGRectValue(),
                        let duration = userInfo[UIKeyboardAnimationDurationUserInfoKey] as? Double,
                        let c = userInfo[UIKeyboardAnimationCurveUserInfoKey] as? UInt,
                        let kFrame = self?.view.convertRect(frame, fromView: nil),
                        let kBounds = self?.view.bounds {

                            let animationType = UIViewAnimationOptions(rawValue: c)
                            let kHeight = kFrame.size.height
                            UIView.animateWithDuration(duration, delay: 0, options: animationType, animations: {
                                if CGRectIntersectsRect(kBounds, kFrame) { // keyboard will be shown
                                    willShowClosure?(kHeight)
                                } else { // keyboard will be hidden
                                    willHideClosure?(kHeight)
                                }
                                }, completion: nil)
                    } else {
                            print("Invalid conditions for UIKeyboardWillChangeFrameNotification")
                    }
            })
    }

    func removeKeyboardObserver() {
        removeObserver(self, notificationName: UIKeyboardWillChangeFrameNotification)
    }
}

Example of usage

override func viewWillDisappear(animated: Bool) {
        super.viewWillDisappear(animated)

        removeKeyboardObserver()
    }

override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)

    addKeyboardChangeFrameObserver(willShow: { [weak self](height) in
        //Update constraints here
        self?.view.setNeedsUpdateConstraints()
        }, willHide: { [weak self](height) in
        //Reset constraints here
        self?.view.setNeedsUpdateConstraints()
    })
}

Swift 4 solution

//MARK: - Observers
extension UIViewController {

  func addObserverForNotification(_ notificationName: Notification.Name, actionBlock: @escaping (Notification) -> Void) {
    NotificationCenter.default.addObserver(forName: notificationName, object: nil, queue: OperationQueue.main, using: actionBlock)
  }

  func removeObserver(_ observer: AnyObject, notificationName: Notification.Name) {
    NotificationCenter.default.removeObserver(observer, name: notificationName, object: nil)
  }
}

//MARK: - Keyboard handling
extension UIViewController {

  typealias KeyboardHeightClosure = (CGFloat) -> ()

  func addKeyboardChangeFrameObserver(willShow willShowClosure: KeyboardHeightClosure?,
                                      willHide willHideClosure: KeyboardHeightClosure?) {
    NotificationCenter.default.addObserver(forName: NSNotification.Name.UIKeyboardWillChangeFrame,
                                           object: nil, queue: OperationQueue.main, using: { [weak self](notification) in
                                            if let userInfo = notification.userInfo,
                                              let frame = (userInfo[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue,
                                              let duration = userInfo[UIKeyboardAnimationDurationUserInfoKey] as? Double,
                                              let c = userInfo[UIKeyboardAnimationCurveUserInfoKey] as? UInt,
                                              let kFrame = self?.view.convert(frame, from: nil),
                                              let kBounds = self?.view.bounds {

                                              let animationType = UIViewAnimationOptions(rawValue: c)
                                              let kHeight = kFrame.size.height
                                              UIView.animate(withDuration: duration, delay: 0, options: animationType, animations: {
                                                if kBounds.intersects(kFrame) { // keyboard will be shown
                                                  willShowClosure?(kHeight)
                                                } else { // keyboard will be hidden
                                                  willHideClosure?(kHeight)
                                                }
                                              }, completion: nil)
                                            } else {
                                              print("Invalid conditions for UIKeyboardWillChangeFrameNotification")
                                            }
    })
  }

  func removeKeyboardObserver() {
    removeObserver(self, notificationName: NSNotification.Name.UIKeyboardWillChangeFrame)
  }
}

Swift 4.2

//MARK: - Keyboard handling
extension UIViewController {

    func addObserverForNotification(_ notificationName: Notification.Name, actionBlock: @escaping (Notification) -> Void) {
        NotificationCenter.default.addObserver(forName: notificationName, object: nil, queue: OperationQueue.main, using: actionBlock)
    }

    func removeObserver(_ observer: AnyObject, notificationName: Notification.Name) {
        NotificationCenter.default.removeObserver(observer, name: notificationName, object: nil)
    }

    typealias KeyboardHeightClosure = (CGFloat) -> ()

    func removeKeyboardObserver() {
        removeObserver(self, notificationName: UIResponder.keyboardWillChangeFrameNotification)
    }

    func addKeyboardChangeFrameObserver(willShow willShowClosure: KeyboardHeightClosure?,
                                        willHide willHideClosure: KeyboardHeightClosure?) {
        NotificationCenter.default.addObserver(forName: UIResponder.keyboardWillChangeFrameNotification,
                                               object: nil, queue: OperationQueue.main, using: { [weak self](notification) in
                                                if let userInfo = notification.userInfo,
                                                    let frame = (userInfo[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue,
                                                    let duration = userInfo[UIResponder.keyboardAnimationDurationUserInfoKey] as? Double,
                                                    let c = userInfo[UIResponder.keyboardAnimationCurveUserInfoKey] as? UInt,
                                                    let kFrame = self?.view.convert(frame, from: nil),
                                                    let kBounds = self?.view.bounds {

                                                    let animationType = UIView.AnimationOptions(rawValue: c)
                                                    let kHeight = kFrame.size.height
                                                    UIView.animate(withDuration: duration, delay: 0, options: animationType, animations: {
                                                        if kBounds.intersects(kFrame) { // keyboard will be shown
                                                            willShowClosure?(kHeight)
                                                        } else { // keyboard will be hidden
                                                            willHideClosure?(kHeight)
                                                        }
                                                    }, completion: nil)
                                                } else {
                                                    print("Invalid conditions for UIKeyboardWillChangeFrameNotification")
                                                }
        })
    }
}

Your id will be passed through as #1, #2 etc. However, # is not valid as an ID (CSS selectors prefix IDs with #).

@"string here
that is long you mean"

But be careful, because

@"string here
           and space before this text
     means the space is also a part of the string"

It also escapes things in the string

@"c:\\folder" // c:\\folder
@"c:\folder" // c:\folder
"c:\\folder" // c:\folder

Related

• What does the @ symbol before a variable name mean in C#?
• MSDN string reference

Per above, a dataset or typed dataset might be a good temorary structure which you could use to do your filtering. A SqlDataReader is meant to read the data very quickly. While you are in the while() loop you are still connected to the DB and it is waiting for you to do whatever you are doing in order to read/process the next result before it moves on. In this case you might get better performance if you pull in all of the data, close the connection to the DB and process the results "offline".

People seem to hate datasets, so the above could be done wiht a collection of strongly typed objects as well.

document.getElementById(button_id).innerHTML = 'Lock';

My understanding is that this is actually very simple:

• Javascript is always pass by value, but when a variable refers to an object (including arrays), the "value" is a reference to the object.
• Changing the value of a variable never changes the underlying primitive or object, it just points the variable to a new primitive or object.
• However, changing a property of an object referenced by a variable does change the underlying object.

So, to work through some of your examples:

function f(a,b,c) {
    // Argument a is re-assigned to a new value.
    // The object or primitive referenced by the original a is unchanged.
    a = 3;
    // Calling b.push changes its properties - it adds
    // a new property b[b.length] with the value "foo".
    // So the object referenced by b has been changed.
    b.push("foo");
    // The "first" property of argument c has been changed.
    // So the object referenced by c has been changed (unless c is a primitive)
    c.first = false;
}

var x = 4;
var y = ["eeny", "miny", "mo"];
var z = {first: true};
f(x,y,z);
console.log(x, y, z.first); // 4, ["eeny", "miny", "mo", "foo"], false

Example 2:

var a = ["1", "2", {foo:"bar"}];
var b = a[1]; // b is now "2";
var c = a[2]; // c now references {foo:"bar"}
a[1] = "4";   // a is now ["1", "4", {foo:"bar"}]; b still has the value
              // it had at the time of assignment
a[2] = "5";   // a is now ["1", "4", "5"]; c still has the value
              // it had at the time of assignment, i.e. a reference to
              // the object {foo:"bar"}
console.log(b, c.foo); // "2" "bar"

You could use XML.

E.g.

declare @xmlstring as  varchar(100) 
set @xmlstring = '<args><arg value="42" /><arg2>-1</arg2></args>' 

declare @docid int 

exec sp_xml_preparedocument @docid output, @xmlstring

select  [id],parentid,nodetype,localname,[text]
from    openxml(@docid, '/args', 1) 

The command sp_xml_preparedocument is built in.

This would produce the output:

id  parentid    nodetype    localname   text
0   NULL        1           args        NULL
2   0           1           arg         NULL
3   2           2           value       NULL
5   3           3           #text       42
4   0           1           arg2        NULL
6   4           3           #text       -1

which has all (more?) of what you you need.

When I want to take into account extra characters like your commas (in my case each token may be entered with quotes), I'd do a string.replace() to change the other delimiters to blanks and then split on whitespace.

FOR WITHIN TEMPLATES

This is how I usually get current logged in user and their id in my templates.

<p>Your Username is : {{user}} </p>
<p>Your User Id is  : {{user.id}} </p>

Dont forget that you can sometimes just fall off the end of the block to get to the next iteration:

$(".row").each( function() {
    if ( ! leaveTheLoop ) {
        ... do stuff here ...
    }
});

Rather than actually returning like this:

$(".row").each( function() {
    if ( leaveTheLoop ) 
        return; //go to next iteration in .each()
    ... do stuff here ...
});

You can try this website http://www.decompileandroid.com Just upload the .apk file and rest of it will be done by this site.

I upgraded my docker this afternoon and ran into the same problem. I tried restarting docker but no luck.

Finally, I had to restart my computer and it worked. Definitely a bug.

I translated the Python code to C. The example given had a minor flaw. If the dividend value that took up all the 32 bits, the shift would fail. I just used 64-bit variables internally to work around the problem:

int No_divide(int nDivisor, int nDividend, int *nRemainder)
{
    int nQuotient = 0;
    int nPos = -1;
    unsigned long long ullDivisor = nDivisor;
    unsigned long long ullDividend = nDividend;

    while (ullDivisor <  ullDividend)
    {
        ullDivisor <<= 1;
        nPos ++;
    }

    ullDivisor >>= 1;

    while (nPos > -1)
    {
        if (ullDividend >= ullDivisor)
        {
            nQuotient += (1 << nPos);
            ullDividend -= ullDivisor;
        }

        ullDivisor >>= 1;
        nPos -= 1;
    }

    *nRemainder = (int) ullDividend;

    return nQuotient;
}

Use a Timer. Timer documentation.

Borrowed and improved Marcus Downing's answer. Tested and works in Firefox 3 and Opera 9. Supports multiple lines, too.

ol {
    counter-reset: item;
    margin-left: 0;
    padding-left: 0;
}

li {
    display: block;
    margin-left: 3.5em;          /* Change with margin-left on li:before.  Must be -li:before::margin-left + li:before::padding-right.  (Causes indention for other lines.) */
}

li:before {
    content: counter(item) ")";  /* Change 'item' to 'item, upper-roman' or 'item, lower-roman' for upper- and lower-case roman, respectively. */
    counter-increment: item;
    display: inline-block;
    text-align: right;
    width: 3em;                  /* Must be the maximum width of your list's numbers, including the ')', for compatability (in case you use a fixed-width font, for example).  Will have to beef up if using roman. */
    padding-right: 0.5em;
    margin-left: -3.5em;         /* See li comments. */
}

To get the value you would do this:

document.getElementById("genderf").value;

But to check, whether the radio button is checked or selected:

document.getElementById("genderf").checked;

If you want to parse date from "1996-12-19T16:39:57-08:00", use the following format "yyyy-MM-dd'T'HH:mm:ssZZZZZ":

let RFC3339DateFormatter = DateFormatter()
RFC3339DateFormatter.locale = Locale(identifier: "en_US_POSIX")
RFC3339DateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
RFC3339DateFormatter.timeZone = TimeZone(secondsFromGMT: 0)

/* 39 minutes and 57 seconds after the 16th hour of December 19th, 1996 with an offset of -08:00 from UTC (Pacific Standard Time) */
let string = "1996-12-19T16:39:57-08:00"
let date = RFC3339DateFormatter.date(from: string)

from Apple https://developer.apple.com/documentation/foundation/dateformatter

This is a not-hard approach:

<div>
    <img src="sample.jpg" />
</div>

then in css:
div {
    position: absolute;
}

img, div {
   width: ##%;
   height: ##%;
}

I had the same error, because I was trying to manipulate session variables inside a custom Session class.

I had to pass the current context (system.web.httpcontext.current) into the class, and then everything worked out fine.

MA

$('select').on('change', function (e) {
    var optionSelected = $("option:selected", this);
    var valueSelected = this.value;
    ....
});

Is this what you are trying?

Sub Sample()
    Dim cb As Shape

    Set cb = ActiveSheet.Shapes("Check Box 1")

    If cb.OLEFormat.Object.Value = 1 Then
        MsgBox "Checkbox is Checked"
    Else
        MsgBox "Checkbox is not Checked"
    End If
End Sub

Replace Activesheet with the relevant sheetname. Also replace Check Box 1 with the relevant checkbox name.

Java's equivalent of ternary operator

a ? b : c

is a simple IF in Kotlin in one line

if(a) b else c

there is no ternary operator (condition ? then : else), because ordinary if works fine in this role.

https://kotlinlang.org/docs/reference/control-flow.html#if-expression

Special case for Null comparison

you can use the Elvis operator

if ( a != null ) a else b
// equivalent to
a ?: b

Code:

List<String> list = new ArrayList<String>();

list.add("a");

JSONArray array = new JSONArray();

for (int i = 0; i < list.size(); i++) {
    array.put(list.get(i));
}
JSONObject obj = new JSONObject();

try {
    obj.put("result", array);
} catch (JSONException e) {
    e.printStackTrace();
}

Check the

extension_dir =

remove it if it is there. that should fix the problem.

Another option - start a debugger where the test fails.

Try running your tests with Testoob (it will run your unittest suite without changes), and you can use the '--debug' command line switch to open a debugger when a test fails.

Here's a terminal session on windows:

C:\work> testoob tests.py --debug
F
Debugging for failure in test: test_foo (tests.MyTests.test_foo)
> c:\python25\lib\unittest.py(334)failUnlessEqual()
-> (msg or '%r != %r' % (first, second))
(Pdb) up
> c:\work\tests.py(6)test_foo()
-> self.assertEqual(x, y)
(Pdb) l
  1     from unittest import TestCase
  2     class MyTests(TestCase):
  3       def test_foo(self):
  4         x = 1
  5         y = 2
  6  ->     self.assertEqual(x, y)
[EOF]
(Pdb)

In building a custom set of layout tags, I found another answer to this problem. Provided here is the custom set of tags and their CSS classes.

HTML

<layout-table>
   <layout-header> 
       <layout-column> 1 a</layout-column>
       <layout-column>  </layout-column>
       <layout-column> 3 </layout-column>
       <layout-column> 4 </layout-column>
   </layout-header>

   <layout-row> 
       <layout-column> a </layout-column>
       <layout-column> a 1</layout-column>
       <layout-column> a </layout-column>
       <layout-column> a </layout-column>
   </layout-row>

   <layout-footer> 
       <layout-column> 1 </layout-column>
       <layout-column>  </layout-column>
       <layout-column> 3 b</layout-column>
       <layout-column> 4 </layout-column>
   </layout-footer>
</layout-table>

CSS

layout-table
{
    display : table;
    clear : both;
    table-layout : fixed;
    width : 100%;
}

layout-table:unresolved
{
    color : red;
    border: 1px blue solid;
    empty-cells : show;
}

layout-header, layout-footer, layout-row 
{
    display : table-row;
    clear : both;   
    empty-cells : show;
    width : 100%;
}

layout-column 
{ 
    display : table-column;
    float : left;
    width : 25%;
    min-width : 25%;
    empty-cells : show;
    box-sizing: border-box;
    /* border: 1px solid white; */
    padding : 1px 1px 1px 1px;
}

layout-row:nth-child(even)
{ 
    background-color : lightblue;
}

layout-row:hover 
{ background-color: #f5f5f5 }

The key here is the Box-Sizing and Padding.

For Load UserTable (List of foreign keys and the tables they reference)

WITH

reference_view AS
     (SELECT a.owner, a.table_name, a.constraint_name, a.constraint_type,
             a.r_owner, a.r_constraint_name, b.column_name
        FROM dba_constraints a, dba_cons_columns b
       WHERE 
          a.owner = b.owner
         AND a.constraint_name = b.constraint_name
         AND constraint_type = 'R'),
constraint_view AS
     (SELECT a.owner a_owner, a.table_name, a.column_name, b.owner b_owner,
             b.constraint_name
        FROM dba_cons_columns a, dba_constraints b
       WHERE a.owner = b.owner
         AND a.constraint_name = b.constraint_name
         AND b.constraint_type = 'P'

         ) ,
usertableviewlist AS 
(
      select  TABLE_NAME  from user_tables  
) 
SELECT  
       rv.table_name FK_Table , rv.column_name FK_Column ,
       CV.table_name PK_Table , rv.column_name PK_Column , rv.r_constraint_name Constraint_Name 
  FROM reference_view rv, constraint_view CV , usertableviewlist UTable
 WHERE rv.r_constraint_name = CV.constraint_name AND rv.r_owner = CV.b_owner And UTable.TABLE_NAME = rv.table_name; 

Wrapping the model property around parens worked for me. You still get the same issue with Visual Studio complaining about the semi-colon, but it works.

var closedStatusId = @(Model.ClosedStatusId);

Simple Xpath for locating Google search box is: Xpath=//span[text()='Google Search']

Depending on the Tkinter activity, and especially when using Tkinter.after, stopping this activity with destroy() -- even by using protocol(), a button, etc. -- will disturb this activity ("while executing" error) rather than just terminate it. The best solution in almost every case is to use a flag. Here is a simple, silly example of how to use it (although I am certain that most of you don't need it! :)

from Tkinter import *

def close_window():
  global running
  running = False  # turn off while loop
  print( "Window closed")

root = Tk()
root.protocol("WM_DELETE_WINDOW", close_window)
cv = Canvas(root, width=200, height=200)
cv.pack()

running = True;
# This is an endless loop stopped only by setting 'running' to 'False'
while running: 
  for i in range(200): 
    if not running: 
        break
    cv.create_oval(i, i, i+1, i+1)
    root.update() 

This terminates graphics activity nicely. You only need to check running at the right place(s).

I had the same issue in a solution with projects targting .NET Core 3.1, .NET Standard 2.0 and .NET Framework 4.8. The issue was on this last one.

The trick that solved the issue for me, was to change the target framework to .NET Framework 4.5, then back to .NET Framework 4.8.

I have absolutely no idea why this fixed the issue, but it did.

The IDE was Visual Studio 2019.

This should work

<a href="javascript:window.open('document.aspx','mywindowtitle','width=500,height=150')">open window</a>

You have to declare your functions before main()

(or declare the function prototypes before main())

As it is, the compiler sees my_print (my_string); in main() as a function declaration.

Move your functions above main() in the file, or put:

void my_print (char *);
void my_print2 (char *);

Above main() in the file.

Even the latest jQuery has that line, so you have these options:

• Change the source of jQuery yourself - but maybe there is a good reason for its usage
• Live with the warning, please note that this option is deprecated and not obsolete.
• Change your code, so it does not use this function

I think number 2 is the most sensible course of action in this case.

By the way if you haven't already tried, try this out: $.ajaxSetup({async:true});, but I don't think it will work.

df.loc will do the job :

>>> df = pd.DataFrame(np.random.randn(3, 2), columns=['A','B'])
>>> df
          A         B
0 -0.269036  0.534991
1  0.069915 -1.173594
2 -1.177792  0.018381
>>> df.loc[13] = df.loc[1]
>>> df
           A         B
0  -0.269036  0.534991
1   0.069915 -1.173594
2  -1.177792  0.018381
13  0.069915 -1.173594

This is way I did it:

%matplotlib inline
import matplotlib.pyplot as plt
plt.rcParams["figure.figsize"] = (12, 9) # (w, h)

You can define your own sizes.

you can use rindex() function to get the last occurrence of a character in string

s="hellloooloo"
b='l'
print(s.rindex(b))

We can use

Model::whereNotNull('sent_at');

Or

Model::whereRaw('sent_at is not null');

URIs came about from the need to identify resources on the Web, and other Internet resources such as electronic mailboxes in a uniform and coherent way. So, one can introduce a new type of widget: URIs to identify widget resources or use tel: URIs to have web links cause telephone calls to be made when invoked.

Some URIs provide information to locate a resource (such as a DNS host name and a path on that machine), while some are used as pure resource names. The URL is reserved for identifiers that are resource locators, including 'http' URLs such as http://stackoverflow.com, which identifies the web page at the given path on the host. Another example is 'mailto' URLs, such as mailto:[email protected], which identifies the mailbox at the given address.

URNs are URIs that are used as pure resource names rather than locators. For example, the URI: mid:[email protected] is a URN that identifies the email message containing it in its 'Message-Id' field. The URI serves to distinguish that message from any other email message. But it does not itself provide the message's address in any store.

I've been thinking over this and experimenting with height of the elements: html, body and div. Finally I came up with the code:

<!DOCTYPE html>_x000D_
<html>_x000D_
<head>_x000D_
<meta charset="utf-8" />_x000D_
<title>Height question</title>_x000D_
<style>_x000D_
 html {height: 50%; border: solid red 3px; }_x000D_
 body {height: 70vh; border: solid green 3px; padding: 12pt; }_x000D_
 div {height: 90vh; border: solid blue 3px; padding: 24pt; }_x000D_
 _x000D_
</style>_x000D_
</head>_x000D_
<body>_x000D_
_x000D_
 <div id="container">_x000D_
  <p>&lt;html&gt; is red</p>_x000D_
  <p>&lt;body&gt; is green</p>_x000D_
  <p>&lt;div&gt; is blue</p>_x000D_
 </div>_x000D_
_x000D_
</body>_x000D_
</html>

With my browser (Firefox 65@mint 64), all three elements are of 1) different height, 2) every one is longer, than the previous (html is 50%, body is 70vh, and div 90vh). I also checked the styles without the height with respect to the html and body tags. Worked fine, too.

About CSS units: w3schools: CSS units

A note about the viewport: " Viewport = the browser window size. If the viewport is 50cm wide, 1vw = 0.5cm."

If you paste the listing into your word processor instead of Notepad, (since each file name is in quotation marks with the full path name), you can highlight all the stuff you don't want on the first file, then use Find and Replace to replace every occurrence of that with nothing. Same with the ending quote (").

It makes a nice clean list of file names.

I don't think it's necessary to use semi-quotes around the variables, try:

curl -XPOST 'http://localhost/Service' -d "path=%2fxyz%2fpqr%2ftest%2f&fileName=1.doc"

%2f is the escape code for a /.

http://www.december.com/html/spec/esccodes.html

Also, do you need to specify a port? ( just checking :) )

You can use attribute data-container="body" within popover

<i class="fa fa-info-circle" data-container="body" data-toggle="popover"
   data-placement="right" data-trigger="hover" title="Title"
   data-content="Your content"></i>

No difference at all.

I personally prefer having 3 letters extensions, but you might prefer having the full name.
It's pure aestetics (personal taste), nothing else.
The format doesn't change.

You can rename the jpeg files into jpg (or vice versa) an nothing changes: they will open in your picture viewer.

By opening both a JPG and a JPEG file with an hex editor, you will notice that they share the very same heading information.

For random hash values, some engineers said golden ratio prime number(2654435761) is a bad choice, with my testing results, I found that it's not true; instead, 2654435761 distributes the hash values pretty good.

#define MCR_HashTableSize 2^10

unsigned int
Hash_UInt_GRPrimeNumber(unsigned int key)
{
  key = key*2654435761 & (MCR_HashTableSize - 1)
  return key;
}

The hash table size must be a power of two.

I have written a test program to evaluate many hash functions for integers, the results show that GRPrimeNumber is a pretty good choice.

I have tried:

1. total_data_entry_number / total_bucket_number = 2, 3, 4; where total_bucket_number = hash table size;
2. map hash value domain into bucket index domain; that is, convert hash value into bucket index by Logical And Operation with (hash_table_size - 1), as shown in Hash_UInt_GRPrimeNumber();
3. calculate the collision number of each bucket;
4. record the bucket that has not been mapped, that is, an empty bucket;
5. find out the max collision number of all buckets; that is, the longest chain length;

With my testing results, I found that Golden Ratio Prime Number always has the fewer empty buckets or zero empty bucket and the shortest collision chain length.

Some hash functions for integers are claimed to be good, but the testing results show that when the total_data_entry / total_bucket_number = 3, the longest chain length is bigger than 10(max collision number > 10), and many buckets are not mapped(empty buckets), which is very bad, compared with the result of zero empty bucket and longest chain length 3 by Golden Ratio Prime Number Hashing.

BTW, with my testing results, I found one version of shifting-xor hash functions is pretty good(It's shared by mikera).

unsigned int Hash_UInt_M3(unsigned int key)
{
  key ^= (key << 13);
  key ^= (key >> 17);    
  key ^= (key << 5); 
  return key;
}

I used a simple border-radius: 0; to remove the rounded corners for the text input types.

Use strictyaml instead

If you have the luxury of creating the yaml file yourself, or if you don't require any of these features of regular yaml, I recommend using strictyaml instead of the standard pyyaml package.

In short, default yaml has some serious flaws in terms of security, interface, and predictability. strictyaml is a subset of the yaml spec that does not have those issues (and is better documented).

You can read more about the problems with regular yaml here

OPINION: strictyaml should be the default implementation of yaml and the old yaml spec should be obsoleted.

It's now possible to add a forced line break
with two blank spaces at the end of the line:

line1??
line2

will be formatted as:

line1
line2

No. Its not possible to add link through css. But you can use jquery

$('.case').each(function() {
  var link = $(this).html();
  $(this).contents().wrap('<a href="example.com/script.php?id="></a>');
});

Here the demo: http://jsfiddle.net/r5uWX/1/

There are two answers , First is use 'sep' setting

>>> print(*names, sep = ', ')

The other is below

>>> print(', '.join(names))

Answering the "usefulness" part of the question:

One rather subtle gotcha of using FileChannel over FileOutputStream is that performing any of its blocking operations (e.g. read() or write()) from a thread that's in interrupted state will cause the channel to close abruptly with java.nio.channels.ClosedByInterruptException.

Now, this could be a good thing if whatever the FileChannel was used for is part of the thread's main function, and design took this into account.

But it could also be pesky if used by some auxiliary feature such as a logging function. For example, you can find your logging output suddenly closed if the logging function happens to be called by a thread that's also interrupted.

It's unfortunate this is so subtle because not accounting for this can lead to bugs that affect write integrity.^[1][2]

• ^[1] https://bugs.openjdk.java.net/browse/JDK-4469683
• ^[2] http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6608965

this error occur when you change your php version: it's very simple to suppress this error message

To suppress the DEPRECATED Error message, just add below code into your index.php file:

init_set('display_errors',False);

I have shared a demo that demonstrates how to cancel an AJAX request-- if data is not returned from the server within a predefined wait time.

HTML :

<div id="info"></div>

JS CODE:

var isDataReceived= false, waitTime= 1000; 
$(function() {
    // Ajax request sent.
     var xhr= $.ajax({
      url: 'http://api.joind.in/v2.1/talks/10889',
      data: {
         format: 'json'
      },     
      dataType: 'jsonp',
      success: function(data) {      
        isDataReceived= true;
        $('#info').text(data.talks[0].talk_title);        
      },
      type: 'GET'
   });
   // Cancel ajax request if data is not loaded within 1sec.
   setTimeout(function(){
     if(!isDataReceived)
     xhr.abort();     
   },waitTime);   
});

I will show you some examples:

First example, do not return local scope object, for example:

const string &dontDoThis(const string &s)
{
    string local = s;
    return local;
}

You can't return local by reference, because local is destroyed at the end of the body of dontDoThis.

Second example, you can return by reference:

const string &shorterString(const string &s1, const string &s2)
{
    return (s1.size() < s2.size()) ? s1 : s2;
}

Here, you can return by reference both s1 and s2 because they were defined before shorterString was called.

Third example:

char &get_val(string &str, string::size_type ix)
{
    return str[ix];
}

usage code as below:

string s("123456");
cout << s << endl;
char &ch = get_val(s, 0); 
ch = 'A';
cout << s << endl; // A23456

get_val can return elements of s by reference because s still exists after the call.

Fourth example

class Student
{
public:
    string m_name;
    int age;    

    string &getName();
};

string &Student::getName()
{
    // you can return by reference
    return m_name;
}

string& Test(Student &student)
{
    // we can return `m_name` by reference here because `student` still exists after the call
    return stu.m_name;
}

usage example:

Student student;
student.m_name = 'jack';
string name = student.getName();
// or
string name2 = Test(student);

Fifth example:

class String
{
private:
    char *str_;

public:
    String &operator=(const String &str);
};

String &String::operator=(const String &str)
{
    if (this == &str)
    {
        return *this;
    }
    delete [] str_;
    int length = strlen(str.str_);
    str_ = new char[length + 1];
    strcpy(str_, str.str_);
    return *this;
}

You could then use the operator= above like this:

String a;
String b;
String c = b = a;

The CSS property display: inline-block was designed to address this need. You can read a bit about it here: http://robertnyman.com/2010/02/24/css-display-inline-block-why-it-rocks-and-why-it-sucks/

Below is an example of its use. The key elements are that the row element has white-space: nowrap and the cell elements have display: inline-block. This example should work on most major browsers; a compatibility table is available here: http://caniuse.com/#feat=inline-block

<html>
<body>
<style>

.row {
    float:left;
    border: 1px solid yellow;
    width: 100%;
    overflow: auto;
    white-space: nowrap;
}

.cell {
    display: inline-block;
    border: 1px solid red;
    width: 200px;
    height: 100px;
}
</style>

<div class="row">
    <div class="cell">a</div>
    <div class="cell">b</div>
    <div class="cell">c</div>
</div>


</body>
</html>

in android i did this using kotlin:

private fun angleBetweenPoints(a: PointF, b: PointF): Double {
        val deltaY = abs(b.y - a.y)
        val deltaX = abs(b.x - a.x)
        return Math.toDegrees(atan2(deltaY.toDouble(), deltaX.toDouble()))
    }

I now found solution by using mysqli instead of mysql.

<?php 

// enable error reporting
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
//connect to database
$connection = mysqli_connect("hostname", "user", "password", "db", "port");

//run the store proc
$result = mysqli_query($connection, "CALL StoreProcName");

//loop the result set
while ($row = mysqli_fetch_array($result)){     
  echo $row[0] . " - " . + $row[1]; 
}

I found that many people seem to have a problem with using mysql_connect, mysql_query and mysql_fetch_array.

Consider this as the current update (Windows 10 (Version 1803) and Visual Studio 2017): I was unable to view the stack trace window and did find an option/menu item to view it. On investigating further, it seems this feature is not available on Windows 10. For further information please refer:

https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/viewing-the-call-stack-in-visual-studio

Copied from the above link: "This feature is not available in Windows 10, version 1507 and later versions of the WDK."

This worked for me:

var backgroundColor = window.getComputedStyle ? window.getComputedStyle(myDiv, null).getPropertyValue("background-color") : myDiv.style.backgroundColor;

And, even better:

var getStyle = function(element, property) {
    return window.getComputedStyle ? window.getComputedStyle(element, null).getPropertyValue(property) : element.style[property.replace(/-([a-z])/g, function (g) { return g[1].toUpperCase(); })];
};
var backgroundColor = getStyle(myDiv, "background-color");

Scripts are loaded in the order you have defined them in the HTML.

Therefore if you first load:

<script type="text/javascript" src="./javascript.js"></script>

without loading jQuery first, then $ is not defined.

You need to first load jQuery so that you can use it.

I would also recommend placing your scripts at the bottom of your HTML for performance reasons.

Make sure you're calling super() as the first thing in your constructor.

You should set this for setAuthorState method

class ManageAuthorPage extends Component {

  state = {
    author: { id: '', firstName: '', lastName: '' }
  };

  constructor(props) {
    super(props);
    this.handleAuthorChange = this.handleAuthorChange.bind(this);
  } 

  handleAuthorChange(event) {
    let {name: fieldName, value} = event.target;

    this.setState({
      [fieldName]: value
    });
  };

  render() {
    return (
      <AuthorForm
        author={this.state.author}
        onChange={this.handleAuthorChange}
      />
    );
  }
}

Another alternative based on arrow function:

class ManageAuthorPage extends Component {

  state = {
    author: { id: '', firstName: '', lastName: '' }
  };

  handleAuthorChange = (event) => {
    const {name: fieldName, value} = event.target;

    this.setState({
      [fieldName]: value
    });
  };

  render() {
    return (
      <AuthorForm
        author={this.state.author}
        onChange={this.handleAuthorChange}
      />
    );
  }
}

We ended up using AWS CloudFront with expiring URLs. The video will load, but by the time the user right clicks and chooses Save As the video url they initially received has expired. Do a search for CloudFront Origin Access Identity.

Producing the video url requires a key pair which can be created in the AWS CLI. FYI this is not my code but it works great!

$resource = 'http://cdn.yourwebsite.com/videos/yourvideourl.mp4';
$timeout = 4;

//This comes from key pair you generated for cloudfront
$keyPairId = "AKAJSDHFKASWERASDF";

$expires = time() + $timeout; //Time out in seconds
$json = '{"Statement":[{"Resource":"'.$resource.'","Condition" {"DateLessThan":{"AWS:EpochTime":'.$expires.'}}}]}';     

//Read Cloudfront Private Key Pair
$fp=fopen("/absolute/path/to/your/cloudfront_privatekey.pem","r"); 
$priv_key=fread($fp,8192); 
fclose($fp); 

//Create the private key
$key = openssl_get_privatekey($priv_key);
if(!$key)
{
    echo "<p>Failed to load private key!</p>";
    return;
}

//Sign the policy with the private key
if(!openssl_sign($json, $signed_policy, $key, OPENSSL_ALGO_SHA1))
{
    echo '<p>Failed to sign policy: '.openssl_error_string().'</p>';
    return;
}

//Create url safe signed policy
$base64_signed_policy = base64_encode($signed_policy);
$signature = str_replace(array('+','=','/'), array('-','_','~'), $base64_signed_policy);

//Construct the URL
$url = $resource.'?Expires='.$expires.'&Signature='.$signature.'&Key-Pair-Id='.$keyPairId;

return '<div class="videowrapper" ><video autoplay controls style="width:100%!important;height:auto!important;"><source src="'.$url.'" type="video/mp4">Your browser does not support the video tag.</video></div>';

To expand upon Mr. Eels comment, you can do it like this:

    File file = new File("C:\\A.txt");
    FileWriter writer;
    try {
        writer = new FileWriter(file, true);
        PrintWriter printer = new PrintWriter(writer);
        printer.append("Sue");
        printer.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

Don't say we ain't good to ya!

from: http://www.codeproject.com/KB/WCF/WCF_Operation_Timeout_.aspx

To avoid this timeout error, we need to configure the OperationTimeout property for Proxy in the WCF client code. This configuration is something new unlike other configurations such as Send Timeout, Receive Timeout etc., which I discussed early in the article. To set this operation timeout property configuration, we have to cast our proxy to IContextChannel in WCF client application before calling the operation contract methods.

With the help of the of Guido mail provided by @kindall, we can understand the standard import process as trying to find the module in each member of sys.path, and file as the result of this lookup (more details in PyMOTW Modules and Imports.). So if the module is located in an absolute path in sys.path the result is absolute, but if it is located in a relative path in sys.path the result is relative.

Now the site.py startup file takes care of delivering only absolute path in sys.path, except the initial '', so if you don't change it by other means than setting the PYTHONPATH (whose path are also made absolute, before prefixing sys.path), you will get always an absolute path, but when the module is accessed through the current directory.

Now if you trick sys.path in a funny way you can get anything.

As example if you have a sample module foo.py in /tmp/ with the code:

import sys
print(sys.path)
print (__file__)

If you go in /tmp you get:

>>> import foo
['', '/tmp', '/usr/lib/python3.3', ...]
./foo.py

When in in /home/user, if you add /tmp your PYTHONPATH you get:

>>> import foo
['', '/tmp', '/usr/lib/python3.3', ...]
/tmp/foo.py

Even if you add ../../tmp, it will be normalized and the result is the same.

But if instead of using PYTHONPATH you use directly some funny path you get a result as funny as the cause.

>>> import sys
>>> sys.path.append('../../tmp')
>>> import foo
['', '/usr/lib/python3.3', .... , '../../tmp']
../../tmp/foo.py

Guido explains in the above cited thread, why python do not try to transform all entries in absolute paths:

we don't want to have to call getpwd() on every import .... getpwd() is relatively slow and can sometimes fail outright,

So your path is used as it is.

var value = (uint) Enum.Parse(typeof(baseKey), "HKEY_LOCAL_MACHINE");  

We can create a new CSS class for div.

 .div {
      position: absolute;
      left: 150px;
      width: 200px;
      height: 120px;
    }

Use the following Statement:

IF EXISTS(SELECT * FROM prueba )
then
  UPDATE prueba
  SET nombre = '1', apellido = '1' 
  WHERE cedula = 'ct'
ELSE 
  INSERT INTO prueba (cedula, nombre, apellido)
  VALUES ('ct', 'ct', 'ct');

This table shows the difference. protected internal is the same as protected, except it also allows access from other classes in the same assembly.

setInterval returns an id that you can use to cancel the interval with clearInterval()

For a JQM+PhoneGap app the following worked for me.

The following was the minimum I had to go to get this to work. I was actually experiencing a stall due to the buffering while spawning ajax requests when the user pressed the back button. Pausing the video in Chrome and the Android browser kept it buffering. The non-async ajax request would get stuck waiting for the buffering to finish, which it never would.

Binding this to the beforepagehide event fixed it.

 $("#SOME_JQM_PAGE").live("pagebeforehide", function(event)
 {
           $("video").each(function () 
           { 
               logger.debug("PAUSE VIDEO");
               this.pause();
               this.src = "";
           });
 });

This will clear every video tag on the page.

The important part is this.src = "";

Another way of doing the same but with dplyr

library(dplyr)
subdf <- df %>% filter(numbers <= 3) %>% droplevels()
str(subdf)

Edit:

Also Works ! Thanks to agenis

subdf <- df %>% filter(numbers <= 3) %>% droplevels
levels(subdf$letters)

Thanks to TheSharpieOne for pointing out the ng-selected option. If that had been posted as an answer rather than as a comment, I would have made that the correct answer.

Here's a working JSFiddle: http://jsfiddle.net/coverbeck/FxM3B/5/.

I also updated the fiddle to use the title attribute, which I had left out in my original post, since it wasn't the cause of the problem (but it is the reason I want to use ng-repeat instead of ng-options).

HTML:

<body ng-app ng-controller="AppCtrl">
<div>Operator is: {{filterCondition.operator}}</div>
<select ng-model="filterCondition.operator">
   <option ng-repeat="operator in operators" title="{{operator.title}}" ng-selected="{{operator.value == filterCondition.operator}}" value="{{operator.value}}">{{operator.displayName}}</option>
</select>
</body>

JS:

function AppCtrl($scope) {

    $scope.filterCondition={
        operator: 'eq'
    }

    $scope.operators = [
        {value: 'eq', displayName: 'equals', title: 'The equals operator does blah, blah'},
        {value: 'neq', displayName: 'not equal', title: 'The not equals operator does yada yada'}
     ]
}

foreach over a statement is just a syntax sugar for the regular one-way fetch() loop. If you want to loop over your data more than once, select it as a regular array first

$sql = "SELECT * FROM users";
$stm = $dbh->query($sql);
// here you go:
$users = $stm->fetchAll();

foreach ($users as $row) {
    print $row["name"] . "-" . $row["sex"] ."<br/>";
}
echo "<br/>";
foreach ($users as $row) {
    print $row["name"] . "-" . $row["sex"] ."<br/>";
}

Also quit that try..catch thing. Don't use it, but set the proper error reporting for PHP and PDO

Too much code for this task, checkout this library https://github.com/kodart/Httpzoid Is uses GSON internally and provides API that works with objects. All JSON details are hidden.

Http http = HttpFactory.create(context);
http.get("http://example.com/users")
    .handler(new ResponseHandler<User[]>() {
        @Override
        public void success(User[] users, HttpResponse response) {
        }
    }).execute();

We had the Broken Pipe error after a new network was put into place. After ensuring that port 9100 was open and could connect to the printer over telnet port 9100, we changed the printer driver from "HP" to "Generic PDF", the broken pipe error went away and were able to print successfully.

(RHEL 7, Printers were Ricoh brand, the HP configuration was pre-existing and functional on the previous network)

According to my understanding to your question, as an example: you had a style at the beginning in style sheet (ex. background-color: red), then using java script you changed it to another style (ex. background-color: green), now you want to reset the style to its original value in style sheet (background-color: red) without mentioning or even knowing its value (ex. element.style.backgroundColor = 'red')...!

If I'm correct, I have a good solution for you which is using another class name for the element:

steps:

1. set the default styles in style sheet as usual according to your desire.
2. define a new class name in style sheet and add the new style you want.
3. when you want to trigger between styles, add the new class name to the element or remove it.

if you want to edit or set a new style, get the element by the new class name and edit the style as desired.

I hope this helps. Regards!

My example comment to @qubyte above got chopped, so here's something that's easier to read...

The method @surjikal described above works for branch commits, but it didn't work for a tree commit I was trying include.

The archive mode also works for commits. For example, fetch @ a2fbf83

npm:

npm install  https://github.com/github/fetch/archive/a2fbf834773b8dc20eef83bb53d081863d3fc87f.tar.gz

yarn:

yarn add  https://github.com/github/fetch/archive/a2fbf834773b8dc20eef83bb53d081863d3fc87f.tar.gz

format:

 https://github.com/<owner>/<repo>/archive/<commit-id>.tar.gz

yarn add  https://github.com/vuejs/vuex/archive/c3626f779b8ea902789dd1c4417cb7d7ef09b557.tar.gz

for the related vuex commit

My problem was that I had http://localhost:3000/ in the address bar and had http://127.0.0.1:3000/ in the console.developers.google.com

If you are using NumPy (as in ludaavic's answer), for large arrays you'll probably want to use NumPy's sum function rather than Python's builtin sum for a significant speedup -- e.g., a >1000x speedup for 10 million element arrays on my laptop:

>>> import numpy as np
>>> ten_million = 10 * 1000 * 1000
>>> x, y = (np.random.randn(ten_million) for _ in range(2))
>>> %timeit sum(x > y)  # time Python builtin sum function
1 loops, best of 3: 24.3 s per loop
>>> %timeit (x > y).sum()  # wow, that was really slow! time NumPy sum method
10 loops, best of 3: 18.7 ms per loop
>>> %timeit np.sum(x > y)  # time NumPy sum function
10 loops, best of 3: 18.8 ms per loop

(above uses IPython's %timeit "magic" for timing)

As of python 3.5+:

@functools.wraps(f)
def g():
    pass

Is an alias for g = functools.update_wrapper(g, f). It does exactly three things:

• it copies the __module__, __name__, __qualname__, __doc__, and __annotations__ attributes of f on g. This default list is in WRAPPER_ASSIGNMENTS, you can see it in the functools source.
• it updates the __dict__ of g with all elements from f.__dict__. (see WRAPPER_UPDATES in the source)
• it sets a new __wrapped__=f attribute on g

The consequence is that g appears as having the same name, docstring, module name, and signature than f. The only problem is that concerning the signature this is not actually true: it is just that inspect.signature follows wrapper chains by default. You can check it by using inspect.signature(g, follow_wrapped=False) as explained in the doc. This has annoying consequences:

• the wrapper code will execute even when the provided arguments are invalid.
• the wrapper code can not easily access an argument using its name, from the received *args, **kwargs. Indeed one would have to handle all cases (positional, keyword, default) and therefore to use something like Signature.bind().

Now there is a bit of confusion between functools.wraps and decorators, because a very frequent use case for developing decorators is to wrap functions. But both are completely independent concepts. If you're interested in understanding the difference, I implemented helper libraries for both: decopatch to write decorators easily, and makefun to provide a signature-preserving replacement for @wraps. Note that makefun relies on the same proven trick than the famous decorator library.

.str.get

This is the simplest to specify string methods

# Setup
df = pd.DataFrame({'A': ['xyz', 'abc', 'foobar'], 'B': [123, 456, 789]})
df

        A    B
0     xyz  123
1     abc  456
2  foobar  789

df.dtypes

A    object
B     int64
dtype: object

For string (read:object) type columns, use

df['C'] = df['A'].str[0]
# Similar to,
df['C'] = df['A'].str.get(0)

.str handles NaNs by returning NaN as the output.

For non-numeric columns, an .astype conversion is required beforehand, as shown in @Ed Chum's answer.

# Note that this won't work well if the data has NaNs. 
# It'll return lowercase "n"
df['D'] = df['B'].astype(str).str[0]

df
        A    B  C  D
0     xyz  123  x  1
1     abc  456  a  4
2  foobar  789  f  7

List Comprehension and Indexing

There is enough evidence to suggest a simple list comprehension will work well here and probably be faster.

# For string columns
df['C'] = [x[0] for x in df['A']]

# For numeric columns
df['D'] = [str(x)[0] for x in df['B']]

df
        A    B  C  D
0     xyz  123  x  1
1     abc  456  a  4
2  foobar  789  f  7

If your data has NaNs, then you will need to handle this appropriately with an if/else in the list comprehension,

df2 = pd.DataFrame({'A': ['xyz', np.nan, 'foobar'], 'B': [123, 456, np.nan]})
df2

        A      B
0     xyz  123.0
1     NaN  456.0
2  foobar    NaN

# For string columns
df2['C'] = [x[0] if isinstance(x, str) else np.nan for x in df2['A']]

# For numeric columns
df2['D'] = [str(x)[0] if pd.notna(x) else np.nan for x in df2['B']]

        A      B    C    D
0     xyz  123.0    x    1
1     NaN  456.0  NaN    4
2  foobar    NaN    f  NaN

Let's do some timeit tests on some larger data.

df_ = df.copy()
df = pd.concat([df_] * 5000, ignore_index=True) 

%timeit df.assign(C=df['A'].str[0])
%timeit df.assign(D=df['B'].astype(str).str[0])

%timeit df.assign(C=[x[0] for x in df['A']])
%timeit df.assign(D=[str(x)[0] for x in df['B']])

12 ms ± 253 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
27.1 ms ± 1.38 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)

3.77 ms ± 110 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
7.84 ms ± 145 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)

List comprehensions are 4x faster.

First, close all instances of Google Chrome. There should be no instances of chrome.exe running in the Windows Task Manager. Then

• Go to %LOCALAPPDATA%\Google\Chrome\User Data\Default\.
• Open the file "Preferences" in a text editor like Notepad.
• First, resave the file to something like "Preference - Old" without any extension (i.e. no .txt). This will serve as a backup, should something go wrong.
• Look for a section called "browser." Inside that section, you should find a subsection called window_placement. Under window_placement you will see things like "bottom", "left", "right", etc. with numbers after them.

You will need to play around with these numbers to get your desired window size and placement. When finished, save this file with the name "Preferences" again with no extension. This will overwrite the existing Preferences file. Open Chrome and see how you did. If you're not satisfied with the size and placement, close Chrome and change the numbers in the Preferences file until you get what you want.

There is the Windows API Code Pack. It's got a lot of shell related stuff, including the CommonOpenFileDialog class (in the Microsoft.WindowsAPICodePack.Dialogs namespace). This is the perfect solution - the usual open dialog with only folders displayed.

Here is an example of how to use it:

CommonOpenFileDialog cofd = new CommonOpenFileDialog();
cofd.IsFolderPicker = true;
cofd.ShowDialog();

Unfortunately Microsoft no longer ships this package, but several people have unofficially uploaded binaries to NuGet. One example can be found here. This package is just the shell-specific stuff. Should you need it, the same user has several other packages which offer more functionality present in the original package.

I hope I am not adding something obvious, but I have been struggling with Django, Ajax, and JSON on this.

Assuming that in your HTML code you do use double quotes, as normally should be, I highly suggest to use single quotes for the rest in JavaScript.

So I agree with ady, but with some care.

My bottom line is:

In JavaScript it probably doesn't matter, but as soon as you embed it inside HTML or the like you start to get troubles. You should know what is actually escaping, reading, passing your string.

My simple case was:

tbox.innerHTML = tbox.innerHTML + '<div class="thisbox_des" style="width:210px;" onmouseout="clear()"><a href="/this/thislist/'
                   + myThis[i].pk +'"><img src="/site_media/'
                   + myThis[i].fields.thumbnail +'" height="80" width="80" style="float:left;" onmouseover="showThis('
                   + myThis[i].fields.left +','
                   + myThis[i].fields.right +',\''
                   + myThis[i].fields.title +'\')"></a><p style="float:left;width:130px;height:80px;"><b>'
                   + myThis[i].fields.title +'</b> '
                   + myThis[i].fields.description +'</p></div>'

You can spot the ' in the third field of showThis.

The double quote didn't work!

It is clear why, but it is also clear why we should stick to single quotes... I guess...

This case is a very simple HTML embedding, and the error was generated by a simple copy/paste from a 'double quoted' JavaScript code.

So to answer the question:

Try to use single quotes while within HTML. It might save a couple of debug issues...

def primes(n): # simple sieve of multiples 
   odds = range(3, n+1, 2)
   sieve = set(sum([list(range(q*q, n+1, q+q)) for q in odds], []))
   return [2] + [p for p in odds if p not in sieve]

>>> primes(50)
[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47]

To test if a number is prime:

>>> 541 in primes(541)
True
>>> 543 in primes(543)
False

EDIT: don't use vc80 / Visual Studio 2005, but Visual Studio 2008 / vc90 versions of the CGAL library (maybe from here).

Linker Tools Warning LNK4099:

You could also compile with /Z7, so the pdb doesn't need to be used, or remove the /DEBUG linker option if you do not have .pdb files for the objects you are linking.

i reached this question while trying to find all procedures which use a certain table

Oracle SQL Developer offers this capability, as pointed out in this article : https://www.thatjeffsmith.com/archive/2012/09/search-and-browse-database-objects-with-oracle-sql-developer/

From the View menu, choose Find DB Object. Choose a DB connection. Enter the name of the table. At Object Types, keep only functions, procedures and packages. At Code section, check All source lines.

We can Access SuperClass members using super keyword

If your method overrides one of its superclass's methods, you can invoke the overridden method through the use of the keyword super. You can also use super to refer to a hidden field (although hiding fields is discouraged). Consider this class, Superclass:

public class Superclass {

    public void printMethod() {
        System.out.println("Printed in Superclass.");
    }
}

// Here is a subclass, called Subclass, that overrides printMethod():

public class Subclass extends Superclass {

    // overrides printMethod in Superclass
    public void printMethod() {
        super.printMethod();
        System.out.println("Printed in Subclass");
    }
    public static void main(String[] args) {
        Subclass s = new Subclass();
        s.printMethod();    
    }
}

Within Subclass, the simple name printMethod() refers to the one declared in Subclass, which overrides the one in Superclass. So, to refer to printMethod() inherited from Superclass, Subclass must use a qualified name, using super as shown. Compiling and executing Subclass prints the following:

Printed in Superclass.
Printed in Subclass

Given this code:

char text[50];
if(strlen(text) == 0) {}

Followed by a question about this code:

 memset(text, 0, sizeof(text));
 if(strlen(text) == 0) {}

I smell confusion. Specifically, in this case:

char text[50];
if(strlen(text) == 0) {}

... the contents of text[] will be uninitialized and undefined. Thus, strlen(text) will return an undefined result.

The easiest/fastest way to ensure that a C string is initialized to the empty string is to simply set the first byte to 0.

char text[50];
text[0] = 0;

From then, both strlen(text) and the very-fast-but-not-as-straightforward (text[0] == 0) tests will both detect the empty string.

If you want to sort data either in Ascending or Descending order based on particular column, using sequlize js, use the order method of sequlize as follows

// Will order the specified column by descending order
order: sequelize.literal('column_name order')
e.g. order: sequelize.literal('timestamp DESC')

I would like to contribute this code as an structural solution for the question posed, according (I hope so) to the accepted answer. (You can very easily customize it).

// ------------------------------------------------------
// server.js 

// .......................................................
// requires
var fs = require('fs');
var express = require('express'); 
var myBusinessLogic = require('../businessLogic/businessLogic.js');

// .......................................................
// security options

/*
1. Generate a self-signed certificate-key pair
openssl req -newkey rsa:2048 -new -nodes -x509 -days 3650 -keyout key.pem -out certificate.pem

2. Import them to a keystore (some programs use a keystore)
keytool -importcert -file certificate.pem -keystore my.keystore
*/

var securityOptions = {
    key: fs.readFileSync('key.pem'),
    cert: fs.readFileSync('certificate.pem'),
    requestCert: true
};

// .......................................................
// create the secure server (HTTPS)

var app = express();
var secureServer = require('https').createServer(securityOptions, app);

// ------------------------------------------------------
// helper functions for auth

// .............................................
// true if req == GET /login 

function isGETLogin (req) {
    if (req.path != "/login") { return false; }
    if ( req.method != "GET" ) { return false; }
    return true;
} // ()

// .............................................
// your auth policy  here:
// true if req does have permissions
// (you may check here permissions and roles 
//  allowed to access the REST action depending
//  on the URI being accessed)

function reqHasPermission (req) {
    // decode req.accessToken, extract 
    // supposed fields there: userId:roleId:expiryTime
    // and check them

    // for the moment we do a very rigorous check
    if (req.headers.accessToken != "you-are-welcome") {
        return false;
    }
    return true;
} // ()

// ------------------------------------------------------
// install a function to transparently perform the auth check
// of incoming request, BEFORE they are actually invoked

app.use (function(req, res, next) {
    if (! isGETLogin (req) ) {
        if (! reqHasPermission (req) ){
            res.writeHead(401);  // unauthorized
            res.end();
            return; // don't call next()
        }
    } else {
        console.log (" * is a login request ");
    }
    next(); // continue processing the request
});

// ------------------------------------------------------
// copy everything in the req body to req.body

app.use (function(req, res, next) {
    var data='';
    req.setEncoding('utf8');
    req.on('data', function(chunk) { 
       data += chunk;
    });
    req.on('end', function() {
        req.body = data;
        next(); 
    });
});

// ------------------------------------------------------
// REST requests
// ------------------------------------------------------

// .......................................................
// authenticating method
// GET /login?user=xxx&password=yyy

app.get('/login', function(req, res){
    var user = req.query.user;
    var password = req.query.password;

    // rigorous auth check of user-passwrod
    if (user != "foobar" || password != "1234") {
        res.writeHead(403);  // forbidden
    } else {
        // OK: create an access token with fields user, role and expiry time, hash it
        // and put it on a response header field
        res.setHeader ('accessToken', "you-are-welcome");
        res.writeHead(200); 
    }
    res.end();
});

// .......................................................
// "regular" methods (just an example)
// newBook()
// PUT /book

app.put('/book', function (req,res){
    var bookData = JSON.parse (req.body);

    myBusinessLogic.newBook(bookData, function (err) {
        if (err) {
            res.writeHead(409);
            res.end();
            return;
        }
        // no error:
        res.writeHead(200);
        res.end();
    });
});

// .......................................................
// "main()"

secureServer.listen (8081);

This server can be tested with curl:

echo "----   first: do login "
curl -v "https://localhost:8081/login?user=foobar&password=1234" --cacert certificate.pem

# now, in a real case, you should copy the accessToken received before, in the following request

echo "----  new book"
curl -X POST  -d '{"id": "12341324", "author": "Herman Melville", "title": "Moby-Dick"}' "https://localhost:8081/book" --cacert certificate.pem --header "accessToken: you-are-welcome" 

Well as we all know that it gets erased. But it can be known under some circumstances where the type is explicitly mentioned in the class hierarchy:

import java.lang.reflect.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.stream.Collectors;

public abstract class CaptureType<T> {
    /**
     * {@link java.lang.reflect.Type} object of the corresponding generic type. This method is useful to obtain every kind of information (including annotations) of the generic type.
     *
     * @return Type object. null if type could not be obtained (This happens in case of generic type whose information cant be obtained using Reflection). Please refer documentation of {@link com.types.CaptureType}
     */
    public Type getTypeParam() {
        Class<?> bottom = getClass();
        Map<TypeVariable<?>, Type> reifyMap = new LinkedHashMap<>();

        for (; ; ) {
            Type genericSuper = bottom.getGenericSuperclass();
            if (!(genericSuper instanceof Class)) {
                ParameterizedType generic = (ParameterizedType) genericSuper;
                Class<?> actualClaz = (Class<?>) generic.getRawType();
                TypeVariable<? extends Class<?>>[] typeParameters = actualClaz.getTypeParameters();
                Type[] reified = generic.getActualTypeArguments();
                assert (typeParameters.length != 0);
                for (int i = 0; i < typeParameters.length; i++) {
                    reifyMap.put(typeParameters[i], reified[i]);
                }
            }

            if (bottom.getSuperclass().equals(CaptureType.class)) {
                bottom = bottom.getSuperclass();
                break;
            }
            bottom = bottom.getSuperclass();
        }

        TypeVariable<?> var = bottom.getTypeParameters()[0];
        while (true) {
            Type type = reifyMap.get(var);
            if (type instanceof TypeVariable) {
                var = (TypeVariable<?>) type;
            } else {
                return type;
            }
        }
    }

    /**
     * Returns the raw type of the generic type.
     * <p>For example in case of {@code CaptureType<String>}, it would return {@code Class<String>}</p>
     * For more comprehensive examples, go through javadocs of {@link com.types.CaptureType}
     *
     * @return Class object
     * @throws java.lang.RuntimeException If the type information cant be obtained. Refer documentation of {@link com.types.CaptureType}
     * @see com.types.CaptureType
     */
    public Class<T> getRawType() {
        Type typeParam = getTypeParam();
        if (typeParam != null)
            return getClass(typeParam);
        else throw new RuntimeException("Could not obtain type information");
    }


    /**
     * Gets the {@link java.lang.Class} object of the argument type.
     * <p>If the type is an {@link java.lang.reflect.ParameterizedType}, then it returns its {@link java.lang.reflect.ParameterizedType#getRawType()}</p>
     *
     * @param type The type
     * @param <A>  type of class object expected
     * @return The Class<A> object of the type
     * @throws java.lang.RuntimeException If the type is a {@link java.lang.reflect.TypeVariable}. In such cases, it is impossible to obtain the Class object
     */
    public static <A> Class<A> getClass(Type type) {
        if (type instanceof GenericArrayType) {
            Type componentType = ((GenericArrayType) type).getGenericComponentType();
            Class<?> componentClass = getClass(componentType);
            if (componentClass != null) {
                return (Class<A>) Array.newInstance(componentClass, 0).getClass();
            } else throw new UnsupportedOperationException("Unknown class: " + type.getClass());
        } else if (type instanceof Class) {
            Class claz = (Class) type;
            return claz;
        } else if (type instanceof ParameterizedType) {
            return getClass(((ParameterizedType) type).getRawType());
        } else if (type instanceof TypeVariable) {
            throw new RuntimeException("The type signature is erased. The type class cant be known by using reflection");
        } else throw new UnsupportedOperationException("Unknown class: " + type.getClass());
    }

    /**
     * This method is the preferred method of usage in case of complex generic types.
     * <p>It returns {@link com.types.TypeADT} object which contains nested information of the type parameters</p>
     *
     * @return TypeADT object
     * @throws java.lang.RuntimeException If the type information cant be obtained. Refer documentation of {@link com.types.CaptureType}
     */
    public TypeADT getParamADT() {
        return recursiveADT(getTypeParam());
    }

    private TypeADT recursiveADT(Type type) {
        if (type instanceof Class) {
            return new TypeADT((Class<?>) type, null);
        } else if (type instanceof ParameterizedType) {
            ArrayList<TypeADT> generic = new ArrayList<>();
            ParameterizedType type1 = (ParameterizedType) type;
            return new TypeADT((Class<?>) type1.getRawType(),
                    Arrays.stream(type1.getActualTypeArguments()).map(x -> recursiveADT(x)).collect(Collectors.toList()));
        } else throw new UnsupportedOperationException();
    }

}

public class TypeADT {
    private final Class<?> reify;
    private final List<TypeADT> parametrized;

    TypeADT(Class<?> reify, List<TypeADT> parametrized) {
        this.reify = reify;
        this.parametrized = parametrized;
    }

    public Class<?> getRawType() {
        return reify;
    }

    public List<TypeADT> getParameters() {
        return parametrized;
    }
}

And now you can do things like:

static void test1() {
        CaptureType<String> t1 = new CaptureType<String>() {
        };
        equals(t1.getRawType(), String.class);
    }

    static void test2() {
        CaptureType<List<String>> t1 = new CaptureType<List<String>>() {
        };
        equals(t1.getRawType(), List.class);
        equals(t1.getParamADT().getParameters().get(0).getRawType(), String.class);
    }


    private static void test3() {
            CaptureType<List<List<String>>> t1 = new CaptureType<List<List<String>>>() {
            };
            equals(t1.getParamADT().getRawType(), List.class);
        equals(t1.getParamADT().getParameters().get(0).getRawType(), List.class);
    }

    static class Test4 extends CaptureType<List<String>> {
    }

    static void test4() {
        Test4 test4 = new Test4();
        equals(test4.getParamADT().getRawType(), List.class);
    }

    static class PreTest5<S> extends CaptureType<Integer> {
    }

    static class Test5 extends PreTest5<Integer> {
    }

    static void test5() {
        Test5 test5 = new Test5();
        equals(test5.getTypeParam(), Integer.class);
    }

    static class PreTest6<S> extends CaptureType<S> {
    }

    static class Test6 extends PreTest6<Integer> {
    }

    static void test6() {
        Test6 test6 = new Test6();
        equals(test6.getTypeParam(), Integer.class);
    }



    class X<T> extends CaptureType<T> {
    }

    class Y<A, B> extends X<B> {
    }

    class Z<Q> extends Y<Q, Map<Integer, List<List<List<Integer>>>>> {
    }

    void test7(){
        Z<String> z = new Z<>();
        TypeADT param = z.getParamADT();
        equals(param.getRawType(), Map.class);
        List<TypeADT> parameters = param.getParameters();
        equals(parameters.get(0).getRawType(), Integer.class);
        equals(parameters.get(1).getRawType(), List.class);
        equals(parameters.get(1).getParameters().get(0).getRawType(), List.class);
        equals(parameters.get(1).getParameters().get(0).getParameters().get(0).getRawType(), List.class);
        equals(parameters.get(1).getParameters().get(0).getParameters().get(0).getParameters().get(0).getRawType(), Integer.class);
    }




    static void test8() throws IllegalAccessException, InstantiationException {
        CaptureType<int[]> type = new CaptureType<int[]>() {
        };
        equals(type.getRawType(), int[].class);
    }

    static void test9(){
        CaptureType<String[]> type = new CaptureType<String[]>() {
        };
        equals(type.getRawType(), String[].class);
    }

    static class SomeClass<T> extends CaptureType<T>{}
    static void test10(){
        SomeClass<String> claz = new SomeClass<>();
        try{
            claz.getRawType();
            throw new RuntimeException("Shouldnt come here");
        }catch (RuntimeException ex){

        }
    }

    static void equals(Object a, Object b) {
        if (!a.equals(b)) {
            throw new RuntimeException("Test failed. " + a + " != " + b);
        }
    }

More info here. But again, it is almost impossible to retrieve for:

class SomeClass<T> extends CaptureType<T>{}
SomeClass<String> claz = new SomeClass<>();

where it gets erased.

You should have a 'skeleton' somewhere in /etc, probably /etc/skeleton, or check the default settings, probably /etc/default or something. Those are scripts that define standard environment variables getting set during a login.

If it is just for your own account: check the (hidden) file ~/.profile and ~/.login. Or generate them, if they don't exist. These are also evaluated by the login process.

$.ajax({
            type : 'GET',
            url : '${pageContext.request.contextPath}/order/lastOrder',
            data : {partyId : partyId, orderId :orderId},
            success : function(data, textStatus, jqXHR) });

@RequestMapping(value = "/lastOrder", method=RequestMethod.GET)
public @ResponseBody OrderBean lastOrderDetail(@RequestParam(value="partyId") Long partyId,@RequestParam(value="orderId",required=false) Long orderId,Model m ) {}

Your class doesn't have a __init__(), so by the time it's instantiated, the attribute atoms is not present. You'd have to do C.setdata('something') so C.atoms becomes available.

>>> C = Residues()
>>> C.atoms.append('thing')

Traceback (most recent call last):
  File "<pyshell#84>", line 1, in <module>
    B.atoms.append('thing')
AttributeError: Residues instance has no attribute 'atoms'

>>> C.setdata('something')
>>> C.atoms.append('thing')   # now it works
>>> 

Unlike in languages like Java, where you know at compile time what attributes/member variables an object will have, in Python you can dynamically add attributes at runtime. This also implies instances of the same class can have different attributes.

To ensure you'll always have (unless you mess with it down the line, then it's your own fault) an atoms list you could add a constructor:

def __init__(self):
    self.atoms = []

In newer versions change was made to the flags: from the documentation:

--extended-insert, -e

Write INSERT statements using multiple-row syntax that includes several VALUES lists. This results in a smaller dump file and speeds up inserts when the file is reloaded.

--opt

This option, enabled by default, is shorthand for the combination of --add-drop-table --add-locks --create-options --disable-keys --extended-insert --lock-tables --quick --set-charset. It gives a fast dump operation and produces a dump file that can be reloaded into a MySQL server quickly.

Because the --opt option is enabled by default, you only specify its converse, the --skip-opt to turn off several default settings. See the discussion of mysqldump option groups for information about selectively enabling or disabling a subset of the options affected by --opt.

--skip-extended-insert

Turn off extended-insert

in MySQL schema is synonym of database. Its quite confusing for beginner people who jump to MySQL and very first day find the word schema, so guys nothing to worry as both are same.

When you are starting MySQL for the first time you need to create a database (like any other database system) to work with so you can CREATE SCHEMA which is nothing but CREATE DATABASE

In some other database system schema represents a part of database or a collection of Tables, and collection of schema is a database.

I would say the biggest difference between orElse and orElseGet comes when we want to evaluate something to get the new value in the else condition.

Consider this simple example -

// oldValue is String type field that can be NULL
String value;
if (oldValue != null) {
    value = oldValue;
} else {
    value = apicall().value;
}

Now let's transform the above example to using Optional along with orElse,

// oldValue is Optional type field
String value = oldValue.orElse(apicall().value);

Now let's transform the above example to using Optional along with orElseGet,

// oldValue is Optional type field
String value = oldValue.orElseGet(() -> apicall().value);

When orElse is invoked, the apicall().value is evaluated and passed to the method. Whereas, in the case of orElseGet the evaluation only happens if the oldValue is empty. orElseGet allows lazy evaluation.

!undefined is true in javascript, so if you want to know whether your variable or object is undefined and want to take actions, you could do something like this:

if(<object or variable>) {
     //take actions if object is not undefined
} else {
     //take actions if object is undefined
}

One other potential reason for this is if you have a default value setup for a column that exceeds the length of the column. It appears someone fat fingered a column that had a length of 5 but the default value exceeded the length of 5. This drove me nuts as I was trying to understand why it wasn't working on any insert, even if all i was inserting was a single column with an integer of 1. Because the default value on the table schema had that violating default value it messed it all up - which I guess brings us to the lesson learned - avoid having tables with default value's in the schema. :)

If you want to redirect HTTP to HTTPS and want to add www with each URL, use the htaccess below

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R,L]
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L] 

it will first redirect HTTP to HTTPS and then it will redirect to www.

simply use "$last_id = mysqli_insert_id($conn);"

Here's a complete solution for those using Imagick in PHP:

$im = new \Imagick($filePath);
$im->setImageCompression(\Imagick::COMPRESSION_JPEG);
$im->setImageCompressionQuality(85);
$im->stripImage();
$im->setInterlaceScheme(\Imagick::INTERLACE_PLANE);

// Try between 0 or 5 radius. If you find radius of 5 
// produces too blurry  pictures decrease to 0 until you 
// find a good balance between size and quality. 
$im->gaussianBlurImage(0.05, 5);



// Include this part if you also want to specify a maximum size for the images

$size = $im->getImageGeometry();
$maxWidth = 1920;
$maxHeight = 1080;


// ----------
// |        |
// ----------
if($size['width'] >= $size['height']){
  if($size['width'] > $maxWidth){
    $im->resizeImage($maxWidth, 0, \Imagick::FILTER_LANCZOS, 1);
  }
}


// ------
// |    |
// |    |
// |    |
// |    |
// ------
else{
  if($size['height'] > $maxHeight){
    $im->resizeImage(0, $maxHeight, \Imagick::FILTER_LANCZOS, 1);
  }
}

For those who are able to access cpanel, there is a simpler way getting around it.

1. log in cpanel => "Remote MySQL" under DATABASES section:

2. Add the IPs / hostname which you are accessing from

3. done!!!

Both of these classes are smart pointers, which means that they automatically (in most cases) will deallocate the object that they point at when that object can no longer be referenced. The difference between the two is how many different pointers of each type can refer to a resource.

When using unique_ptr, there can be at most one unique_ptr pointing at any one resource. When that unique_ptr is destroyed, the resource is automatically reclaimed. Because there can only be one unique_ptr to any resource, any attempt to make a copy of a unique_ptr will cause a compile-time error. For example, this code is illegal:

unique_ptr<T> myPtr(new T);       // Okay
unique_ptr<T> myOtherPtr = myPtr; // Error: Can't copy unique_ptr

However, unique_ptr can be moved using the new move semantics:

unique_ptr<T> myPtr(new T);                  // Okay
unique_ptr<T> myOtherPtr = std::move(myPtr); // Okay, resource now stored in myOtherPtr

Similarly, you can do something like this:

unique_ptr<T> MyFunction() {
    unique_ptr<T> myPtr(/* ... */);

    /* ... */

    return myPtr;
}

This idiom means "I'm returning a managed resource to you. If you don't explicitly capture the return value, then the resource will be cleaned up. If you do, then you now have exclusive ownership of that resource." In this way, you can think of unique_ptr as a safer, better replacement for auto_ptr.

shared_ptr, on the other hand, allows for multiple pointers to point at a given resource. When the very last shared_ptr to a resource is destroyed, the resource will be deallocated. For example, this code is perfectly legal:

shared_ptr<T> myPtr(new T);       // Okay
shared_ptr<T> myOtherPtr = myPtr; // Sure!  Now have two pointers to the resource.

Internally, shared_ptr uses reference counting to track how many pointers refer to a resource, so you need to be careful not to introduce any reference cycles.

In short:

1. Use unique_ptr when you want a single pointer to an object that will be reclaimed when that single pointer is destroyed.
2. Use shared_ptr when you want multiple pointers to the same resource.

Hope this helps!

If you're writing a bash script, call it by name:

#!/bin/bash

/bin/sh is not guaranteed to be bash. This caused a ton of broken scripts in Ubuntu some years ago (IIRC).

The source builtin works just fine in bash; but you might as well just use dot like Norman suggested.

The Matlab Compiler is the standard way to do this. mcc is the command. The Matlab Runtime is required to run the programs; I'm not sure if it can be directly integrated with the executable or not.

I think this might be helpful:

http://note.sonots.com/SciSoftware/haartraining.html

if (-e $base_path)
{ 
 # code
}

-e is the 'existence' operator in Perl.

You can check permissions and other attributes using the code on this page.

npm start will run whatever you have defined for the start command of the scripts object in your package.json file.

So if it looks like this:

"scripts": {
  "start": "ng serve"
}

Then npm start will run ng serve.

If you are using a framework like Ruby on Rails or Spring MVC you may need to use divs with square braces or other chars, that are not allowed you can use document.getElementById and this solution still works if you have multiple inputs with the same type.

var div = document.getElementById(divID);
$(div).find('input:text, input:password, input:file, select, textarea')
        .each(function() {
            $(this).val('');
        });
$(div).find('input:radio, input:checkbox').each(function() {
    $(this).removeAttr('checked');
    $(this).removeAttr('selected');
});

This examples shows how to clear the inputs, for you example you'll need to change it.

For iOS 9 beta 3,4 users. Since the option to view profiles is not viewable do the following from Xcode.

1. Open Xcode 7.
2. Go to window, devices.
3. Select your device.
4. Delete all of the profiles loaded on the device.
5. Delete the old app on your device.
6. Clean and rebuild the app to your device.

On iOS 9.1+ n iOS 9.2+ go to Settings -> General -> Device Management -> press the Profile -> Press Trust.

Check the following Function for date comparison first of all create two NSDate objects and pass to the function: Add the bellow lines of code in viewDidload or according to your scenario.

-(void)testDateComaparFunc{

NSString *getTokon_Time1 = @"2016-05-31 03:19:05 +0000";
NSString *getTokon_Time2 = @"2016-05-31 03:18:05 +0000";
NSDateFormatter *dateFormatter=[NSDateFormatter new];
[dateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss Z"];
NSDate *tokonExpireDate1=[dateFormatter dateFromString:getTokon_Time1];
NSDate *tokonExpireDate2=[dateFormatter dateFromString:getTokon_Time2];
BOOL isTokonValid = [self dateComparision:tokonExpireDate1 andDate2:tokonExpireDate2];}

here is the function

-(BOOL)dateComparision:(NSDate*)date1 andDate2:(NSDate*)date2{

BOOL isTokonValid;

if ([date1 compare:date2] == NSOrderedDescending) {
    //"date1 is later than date2
    isTokonValid = YES;
} else if ([date1 compare:date2] == NSOrderedAscending) {
    //date1 is earlier than date2
    isTokonValid = NO;
} else {
   //dates are the same
    isTokonValid = NO;

}

return isTokonValid;}

Simply change the date and test above function :)

You can use VBA to export an Access database table as a Worksheet in an Excel Workbook.

To obtain the path of the Access database, use the CurrentProject.Path property.

To name the Excel Workbook file with the current date, use the Format(Date, "yyyyMMdd") method.

Finally, to export the table as a Worksheet, use the DoCmd.TransferSpreadsheet method.

Example:

Dim outputFileName As String
outputFileName = CurrentProject.Path & "\Export_" & Format(Date, "yyyyMMdd") & ".xls"
DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel9, "Table1", outputFileName , True
DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel9, "Table2", outputFileName , True

This will output both Table1 and Table2 into the same Workbook.

HTH

You can encode your string by using .encode()

Example:

'Hello World'.encode()

Adding on to the top rated answer, with a helpful utility...

valueOf() throws two different Exceptions in cases where it doesn't like its input.

• IllegalArgumentException
• NullPointerExeption

If your requirements are such that you don't have any guarantee that your String will definitely match an enum value, for example if the String data comes from a database and could contain old version of the enum, then you'll need to handle these often...

So here's a reusable method I wrote which allows us to define a default Enum to be returned if the String we pass doesn't match.

private static <T extends Enum<T>> T valueOf( String name , T defaultVal) {
        try {
            return Enum.valueOf(defaultVal.getDeclaringClass() , name);
        } catch (IllegalArgumentException | NullPointerException e) {
            return defaultVal;
        }
    }

Use it like this:

public enum MYTHINGS {
    THINGONE,
    THINGTWO
}

public static void main(String [] asd) {
  valueOf("THINGTWO" , MYTHINGS.THINGONE);//returns MYTHINGS.THINGTWO
  valueOf("THINGZERO" , MYTHINGS.THINGONE);//returns MYTHINGS.THINGONE
}