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Simple logical operators in Bash
...o test if a file exists. There are also string equality operators: "$string1" == "$string2" (beware that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts with a while [[ $foo == "a*" ]] tests if $foo is exactly a*), and the familiar !, && and || operators for nega...
Delete first character of a string in Javascript
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Why do results vary based on curly brace placement?
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That's one of the pitfalls of JavaScript: automatic semicolon insertion. Lines that do not end...
Dynamically creating keys in a JavaScript associative array
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Use the first example. If the key doesn't exist it will be added.
var a = new Array();
a['na...
How do detect Android Tablets in general. Useragent?
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How to get first and last day of the week in JavaScript
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var curr = new Date; // get current date
var first = curr.getDate() - curr.getDay(); // First ...
AngularJS: How to clear query parameters in the URL?
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How to refresh / invalidate $resource cache in AngularJS
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Keep the boolean and get the $http cache:
var $httpDefaultCache = $cacheFactory.get('$http');...
Python: try statement in a single line
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Efficiently test if a port is open on Linux?
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