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What is the most efficient way to deep clone an object in JavaScript?
What is the most efficient way to clone a JavaScript object? I've seen obj = eval(uneval(o)); being used, but that's non-standard and only supported by Firefox . I've done things like obj = JSON.parse(JSON.stringify(o)); but question the efficiency. I've also seen recursive copying funct...
What algorithms compute directions from point A to point B on a map?
... start at each end, and expand both sides until they meet in the middle. This eliminates roughly half the work (2*pi*(r/2)^2 vs pi*r^2).
To avoid exploring the back-alleys of every city between your source and destination, you can have several layers of map data: A 'highways' layer that contains onl...
javascript i++ vs ++i [duplicate]
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The difference between i++ and ++i is the value of the expression.
The value i++ is the value of i before the increment. The value of ++i is the value of i after the increment.
Example:
var i = 42;
alert(i++); // shows 42
alert(i); // shows 43
i = 42;
alert...
Set cellpadding and cellspacing in CSS?
In an HTML table, the cellpadding and cellspacing can be set like this:
28 Answers
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Why does “split” on an empty string return a non-empty array?
...it ','
will return an array of size 2. Everything before the first match is returned as the first element.
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Does the APNS device token ever change, once created?
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From [Apple Documentation ApplePushService]2
The form of this phase of token trust ensures that only APNs generates
the token which it will later honor, and it can assure itself that a
token handed to it by a device is the same token that it previously
provisioned for that part...
How can I add a PHP page to WordPress?
.../themename/).
Rename the new file as templatename.php (where templatename is what you want to call your new template). To add your new template to the list of available templates, enter the following at the top of the new file:
<?php
/*
Template Name: Name of Template
*/
?>
You can modify ...
What's the difference of ContentType and MimeType
... they are absolute equal. However, browsing some django docs, I've
found this piece of code:
4 Answers
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Write a function that returns the longest palindrome in a given string
...ABCDEDCBAGHTFYW1234567887654321ZWETYGDE" it finds the correct output which is 1234567887654321.
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How to get input type using jquery?
..., and I need to get the values depending on the input type. So if the type is a radio, I need to get which is checked, and if it is a checkbox I need to now which are checked, and if it is a drop down I need to know which is selected, and I if it is a text/textarea I need to know the values.
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