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Is it possible to create a “weak reference” in javascript?
...e’ becomes a key (eg. integer) in a simple lookup, with an add-reference and remove-reference method, and when there are no manually-tracked references anymore then entry can be deleted, leaving future lookups on that key to return null.
This is not really a weakref, but it can solve some of the ...
Javascript infamous Loop issue? [duplicate]
...e first example:
JavaScript's scopes are function-level, not block-level, and creating a closure just means that the enclosing scope gets added to the lexical environment of the enclosed function.
After the loop terminates, the function-level variable i has the value 5, and that's what the inner fu...
Best way to change the background color for an NSView
...l but the transparency didn't work. I'm coming to Cocoa from Cocoa Touch, and surprised to see that in some ways the Cocoa Touch framework is more complete (!). I was thinking of making a class extension for NSView that would allow you to set backgroundColor like you can an NSWindow or UIView, but...
How to know that a string starts/ends with a specific string in jQuery?
...rtswith, you can use indexOf:
if(str.indexOf('Hello') == 0) {
...
ref
and you can do the maths based on string length to determine 'endswith'.
if(str.lastIndexOf('Hello') == str.length - 'Hello'.length) {
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Long press on UITableView
I would like to handle a long press on a UITableViewCell to print a "quick access menu".
Did someone already do this?
10...
Why, Fatal error: Class 'PHPUnit_Framework_TestCase' not found in …?
...PDATE
As of PHPUnit 3.5, there is a built-in autoloader class that will handle this for you:
require_once 'PHPUnit/Autoload.php';
Thanks to Phoenix for pointing this out!
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Map implementation with duplicate keys
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You are searching for a multimap, and indeed both commons-collections and Guava have several implementations for that. Multimaps allow for multiple keys by maintaining a collection of values per key, i.e. you can put a single object into the map, but you retr...
getting the last item in a javascript object
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No. Order is not guaranteed in JSON and most other key-value data structures, so therefore the last item could sometimes be carrot and at other times be banana and so on. If you need to rely on ordering, your best bet is to go with arrays. The power of key-val...
Copying text outside of Vim with set mouse=a enabled
...t a lot of code that is more than on your screen? (then you have to scroll and select at the same time)
– Ozkan
Apr 2 '13 at 12:25
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Contains method for a slice
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Mostafa has already pointed out that such a method is trivial to write, and mkb gave you a hint to use the binary search from the sort package. But if you are going to do a lot of such contains checks, you might also consider using a map instead.
It's trivial to check if a specific map key exist...