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How to source virtualenv activate in a Bash script
How do you create a Bash script to activate a Python virtualenv?
9 Answers
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How to check for an undefined or null variable in JavaScript?
...quality will also return true for undefined.
if (window.variable == null) alert('variable is null or undefined');
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How to run a shell script on a Unix console or Mac terminal?
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To run a non-executable sh script, use:
sh myscript
To run a non-executable bash script, use:
bash myscript
To start an executable (which is any file with executable permission); you just specify it by its path:
/foo/bar
/bin/bar
./bar
To make...
Determining whether jQuery has not found any element
...e { /* code if not found */ }
You're getting an object returned from that alert because jQuery (almost) always returns the "jQuery object" when you use it, which is a wrapper for the elements jQuery's found that permits method chaining.
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tag vs tag
...ute is required. In my experience, all
browsers will default to text/javascript if it is absent, but that
behaviour is not defined anywhere. While you can in theory leave it
out and assume it will be interpreted as JavaScript, it's invalid
HTML, so why not add it.
In HTML 5, the type at...
How to check in Javascript if one element is contained within another
... document.getElementsByTagName('a'); if (parent.contains(allElements[i]) { alert('Link is inside meni'); }
– baron_bartek
Jul 9 '19 at 7:57
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How can I pass an argument to a PowerShell script?
There's a PowerShell script named itunesForward.ps1 that makes iTunes fast forward 30 seconds:
7 Answers
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How to include JavaScript file or library in Chrome console?
Is there a simpler (native perhaps?) way to include an external script file in the Google Chrome browser?
9 Answers
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Why I can't change directories using “cd”?
I'm trying to write a small script to change the current directory to my project directory:
31 Answers
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Why should I capitalize my SQL keywords? [duplicate]
...nguages, imagine a js function like this: LET echoMessage = FUNCTION(msg){ ALERT(msg); }
– santiago arizti
Dec 5 '17 at 18:03
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