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Is Hash Rocket deprecated?
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The author of that blog post is being overly dramatic and foolish, the => is still quite necessary. In particular:
You must use the rocket for symbols that are not valid labels: :$set => x is valid but $set: x is not. In Ruby 2.2+ you can get around this problem with quo...
What is function overloading and overriding in php?
In PHP, what do you mean by function overloading and function overriding. and what is the difference between both of them? couldn't figure out what is the difference between them.
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simulate background-size:cover on or
...r a while, but I came across a great solution that doesn't use any script, and can achieve a perfect cover simulation on video with 5 lines of CSS (9 if you count selectors and brackets). This has 0 edge-cases in which it doesn't work perfectly, short of CSS3-compatibility.
You can see an example h...
Couldn't register with the bootstrap Server
I just changed some code in my program and got this error:
21 Answers
21
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What's the safest way to iterate through the keys of a Perl hash?
...ng each may in some way have unintended side effects. So, is that true, and is one of the two following methods best, or is there a better way?
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How to detect idle time in JavaScript elegantly?
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Here is a simple script using JQuery that handles mousemove and keypress events.
If the time expires, the page reload.
<script type="text/javascript">
var idleTime = 0;
$(document).ready(function () {
//Increment the idle time counter every minute.
var ...
Easiest way to flip a boolean value?
... it can be helpful to have a TOGGLE(a) macro. This prevents some mistakes and makes it all more readable on narrow screens.
– OJW
Oct 1 '10 at 12:17
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VIM + JSLint?
...tegration or do what I did:
Download http://jslint.webvm.net/mylintrun.js and http://www.jslint.com/fulljslint.js
and put them in a directory of your choice.
Then add the following line to the beginning of mylintrun.js:
var filename= arguments[0];
and change last line of code in mylintrun.js (...
“ImportError: No module named” when trying to run Python script
...t. I get a ImportError: No module named ..., however, if I launch ipython and import the same module in the same way through the interpreter, the module is accepted.
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What is the difference between MOV and LEA?
...urpose of LEA is to allow one to perform a non-trivial address calculation and store the result [for later usage]
LEA ax, [BP+SI+5] ; Compute address of value
MOV ax, [BP+SI+5] ; Load value at that address
Where there are just constants involved, MOV (through the assembler's constant calculation...