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Function to return only alpha-numeric characters from string?
I'm looking for a php function that will take an input string and return a sanitized version of it by stripping away all special characters leaving only alpha-numeric.
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What does the thread_local mean in C++11?
I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
Does List guarantee insertion order?
...ly the List could re-order the collection any time after an item was added and that statement would still be valid. I don't want to get nit-picky about it, but if a manager or QA really made me defend this position, I wouldn't feel very confident with just that quote.
– tehDorf...
Is JSON Hijacking still an issue in modern browsers?
I am using Backbone.js and the Tornado web server. The standard behavior for receiving collection data in Backbone is to send as a JSON Array.
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Why is creating a Thread said to be expensive?
...a fair bit of work involved:
A large block of memory has to be allocated and initialized for the thread stack.
System calls need to be made to create / register the native thread with the host OS.
Descriptors need to be created, initialized and added to JVM-internal data structures.
It is also e...
In HTML5, is the localStorage object isolated per page/domain?
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It's per domain and port (the same segregation rules as the same origin policy), to make it per-page you'd have to use a key based on the location, or some other approach.
You don't need a prefix, use one if you need it though. Also, yes,...
Creating a textarea with auto-resize
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This works for me (Firefox 3.6/4.0 and Chrome 10/11):
var observe;
if (window.attachEvent) {
observe = function (element, event, handler) {
element.attachEvent('on'+event, handler);
};
}
else {
observe = function (element, event...
How to stop a JavaScript for loop?
I'm using this JavaScript to iterate through an array and find a matching array element:
4 Answers
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What does [:] mean?
I'm analyzing some Python code and I don't know what
6 Answers
6
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How to disable anchor “jump” when loading a page?
I think this may not be possible, will try and explain as best as I can.
I have a page containing tabs (jquery powered), controlled by the following:
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