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Check if an element is present in an array [duplicate]
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ECMAScript 2016 incorporates an includes() method for arrays that specifically solves the problem, and so is now the preferred method.
[1, 2, 3].includes(2); // true
[1, 2, 3].includes(4); // false
[1, 2, 3].includes(1, ...
How to differentiate single click event and double click event?
...('single')}, function(){alert('double')})">click me</div>
<script>
function doubleclick(el, onsingle, ondouble) {
if (el.getAttribute("data-dblclick") == null) {
el.setAttribute("data-dblclick", 1);
setTimeout(function () {
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Replace whitespaces with tabs in linux
... convert spaces to tabs
SYNOPSIS
unexpand [OPTION]... [FILE]...
DESCRIPTION
Convert blanks in each FILE to tabs, writing to standard output. With
no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options
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How to stop app that node.js express 'npm start'
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Yes, npm provides for a stop script too:
npm help npm-scripts
prestop, stop, poststop: Run by the npm stop command.
Set one of the above in your package.json, and then use npm stop
npm help npm-stop
You can make this really simple if you set in ...
Web-scraping JavaScript page with Python
...In fact, I achieve this goal, but I have seen that in some pages where JavaScript is loaded I didn't obtain good results.
1...
Opening project in Visual Studio fails due to nuget.targets not found error
...fwlink/?LinkID=322105. The missing file is
{0}.
Migration Script
Many users have requested a migration tool to disable the
MSBuild-based package restore and convert to Automatic Package
Restore. The NuGet team has decided not to provide a supported tool
for this because of t...
get size of json object
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You can use something like this
<script type="text/javascript">
var myObject = {'name':'Kasun', 'address':'columbo','age': '29'}
var count = Object.keys(myObject).length;
console.log(count);
</script>
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How to redirect the output of a PowerShell to a file during its execution
I have a PowerShell script for which I would like to redirect the output to a file. The problem is that I cannot change the way this script is called. So I cannot do:
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How to assign a heredoc value to a variable in Bash?
...'s worth mentioning that if you have set -o errexit (a.k.a set -e) in your script and you use this then it will terminate your script because read returns a non-zero return code when it reaches EOF.
– Mark Byers
Jun 28 '11 at 8:04
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Reading and writing environment variables in Python? [duplicate]
My python script which calls many python functions and shell scripts. I want to set a environment variable in Python (main calling function) and all the daughter processes including the shell scripts to see the environmental variable set.
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