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How to delete last character from a string using jQuery?

... Why use jQuery for this? str = "123-4"; alert(str.substring(0,str.length - 1)); Of course if you must: Substr w/ jQuery: //example test element $(document.createElement('div')) .addClass('test') .text('123-4') .appendTo('body'); //using substring ...
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How should strace be used?

...ever, we haven't always had the source code or sometimes were dealing with scripted languages that weren't straight-forward to run under a debugger. In this case, you run strace on an already running program and you will get the list of system calls being made. This is particularly useful if you a...
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Associative arrays in Shell scripts

We required a script that simulates Associative arrays or Map like data structure for Shell Scripting, any body? 17 Answers...
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How do I detect when someone shakes an iPhone?

...milar (in iPhone OS 3.0+), only in my case I wanted it app-wide so I could alert various parts of the app when a shake occurred. Here's what I ended up doing. First, I subclassed UIWindow. This is easy peasy. Create a new class file with an interface such as MotionWindow : UIWindow (feel free to pi...
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How to get first character of string?

... What you want is charAt. var x = 'some string'; alert(x.charAt(0)); // alerts 's' share | improve this answer | follow | ...
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Linux delete file with size 0 [duplicate]

...x if its size is 0. I want to execute this in an crontab without any extra script. 8 Answers ...
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How to define hash tables in Bash?

... Bash 4 Bash 4 natively supports this feature. Make sure your script's hashbang is #!/usr/bin/env bash or #!/bin/bash so you don't end up using sh. Make sure you're either executing your script directly, or execute script with bash script. (Not actually executing a Bash script with Bas...
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.keyCode vs. .which

...', function(event,handler){ switch(handler.key){ case "ctrl+a":alert('you pressed ctrl+a!');break; case "ctrl+b":alert('you pressed ctrl+b!');break; case "r":alert('you pressed r!');break; case "f":alert('you pressed f!');break; } }); hotkeys understands the...
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How to check if a query string value is present via JavaScript?

...Just to clarify, this works great if(/[?&]q=/.test(location.search)) { alert("match"); } (I was a bit confused due to @DragosDurlut comment. :) – Leia Apr 24 '17 at 4:24 1 ...
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Customizing Bootstrap CSS template

... <link rel="stylesheet/less" href="/path/to/bootstrap.less"> <script src="/path/to/less.js"></script> To recompile the .less files, just save them and reload your page. Less.js compiles them and stores them in local storage. Or if you prefer to statically compile a new ...