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Using an integer as a key in an associative array in JavaScript
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@bobince: Internally, sure. However, logically, arrays have integer "keys".
– Lightness Races in Orbit
Nov 17 '12 at 22:53
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Who is listening on a given TCP port on Mac OS X?
...y version of macOS supports this:
sudo lsof -iTCP -sTCP:LISTEN -n -P
Personally I've end up with this simple function in my ~/.bash_profile:
listening() {
if [ $# -eq 0 ]; then
sudo lsof -iTCP -sTCP:LISTEN -n -P
elif [ $# -eq 1 ]; then
sudo lsof -iTCP -sTCP:LISTEN -n -P | gre...
Unpacking, extended unpacking and nested extended unpacking
...luating these "by hand," I'll suggest some simple substitution rules. Basically, you might find it easier to understand an expression if all the iterables are formatted in the same way.
For the purposes of unpacking only, the following substitutions are valid on the right side of the = (i.e. for rv...
Spring MVC: How to perform validation?
...out that: I saw it validates a class. Does the class have to be filled manually with the values from the user input, and then passed to the validator?
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What does the variable $this mean in PHP?
I see the variable $this in PHP all the time and I have no idea what it's used for. I've never personally used it.
10 An...
How do you remove an array element in a foreach loop?
... Please see @Neils answer. You will encounter unexpected bugs, especially if you work with Array of stdClasses. Do you like unexpected behavior? Me not.
– happy_marmoset
Sep 14 '16 at 11:44
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Bootstrap: how do I change the width of the container?
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Theoretically, there are infinite combinations that match 1000px. An example: 12*65 + 11*20 = 1000 (there are only 11 gutters between columns).
– albertedevigo
Jun 14 '13 at 14:09
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Hosting Git Repository in Windows
...he git daemon running under Windows:
(Prerequisites: A default Cygwin installation and a git client that supports git daemon)
Step 1: Open a bash shell
Step 2: In the directory /cygdrive/c/cygwin64/usr/local/bin/, create a file named "gitd" with the following content:
#!/bin/bash
/usr/bin/git d...
How to store arbitrary data for some HTML tags
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Which version of HTML are you using?
In HTML 5, it is totally valid to have custom attributes prefixed with data-, e.g.
<div data-internalid="1337"></div>
In XHTML, this is not really valid. If you are in XHTML 1.1 mode, the browser will probably complain about it, b...
How can I bind to the change event of a textarea in jQuery?
...ouse click and paste or cut. Is there a jQuery event that can trigger for all those events?
11 Answers
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