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Ruby's ||= (or equals) in JavaScript?
...seems as pointed out in the comments below however, that this literal ruby form is less efficient than the standard javascript idiom a = a || b.
For reference:
http://www.rubyinside.com/what-rubys-double-pipe-or-equals-really-does-5488.html
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RSpec vs Cucumber (RSpec stories) [closed]
When should I use specs for Rails application and when Cucumber (former rspec-stories)? I know how both work and actively use specs, of course. But it still feels weird to use Cucumber. My current view on this, is that it's convenient to use Cucumber when you're implementing application for the clie...
Writing a git post-receive hook to deal with a specific branch
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A post-receive hook gets its arguments from stdin, in the form <oldrev> <newrev> <refname>. Since these arguments are coming from stdin, not from a command line argument, you need to use read instead of $1 $2 $3.
The post-receive hook can receive multiple branches...
How do I make a text input non-editable?
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When you send form to a php file, it won't read disabled inputs. It may be what he meant.
– Carlos2W
Mar 29 '16 at 17:10
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Difference between val() and text()
...value to DOM elements using .val() and .text() functions:
HTML Part:
<form id="form1"><input id="first" type="text" /><input type="submit" /></form>
<div id="second">Click the "Submit Query" to see it work</div>
Jquery Part:
$(document).on("submit", "form", f...
What does inverse_of do? What SQL does it generate?
...ed an issue for me when creating new parent and child entities in the same form.
– W.M.
Sep 28 '16 at 6:30
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How to decode HTML entities using jQuery?
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Security note: using this answer (preserved in its original form below) may introduce an XSS vulnerability into your application. You should not use this answer. Read lucascaro's answer for an explanation of the vulnerabilities in this answer, and use the approach from either that ans...
Bash array with spaces in elements
...LES[@]}"
do
echo "$f"
done
Using double quotes around any array of the form "${FILES[@]}" splits the array into one word per array element. It doesn't do any word-splitting beyond that.
Using "${FILES[*]}" also has a special meaning, but it joins the array elements with the first character of $...
Capturing TAB key in text box [closed]
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I'd rather tab indentation not work than breaking tabbing between form items.
If you want to indent to put in code in the Markdown box, use Ctrl+K (or ⌘K on a Mac).
In terms of actually stopping the action, jQuery (which Stack Overflow uses) will stop an event from bubbling when you ret...
What is the benefit of using $() instead of backticks in shell scripts?
...s within commands, without losing your sanity trying to figure out if some form of escaping will work on the backticks.
An example, though somewhat contrived:
deps=$(find /dir -name $(ls -1tr 201112[0-9][0-9]*.txt | tail -1l) -print)
which will give you a list of all files in the /dir directory ...