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Big O of JavaScript arrays
Arrays in JavaScript are very easy to modify by adding and removing items. It somewhat masks the fact that most languages arrays are fixed-size, and require complex operations to resize. It seems that JavaScript makes it easy to write poorly performing array code. This leads to the question:
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how does array[100] = {0} set the entire array to 0?
How does the compiler fill values in char array[100] = {0}; ? What's the magic behind it?
4 Answers
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Remove property for all objects in array
I want to remove the bad property from every object in the array. Is there a better way to do it than using a for loop and deleting it from every object?
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Razor MVC Populating Javascript array with Model Array
I'm trying to load a JavaScript array with an array from my model. Its seems to me that this should be possible.
7 Answers
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Fixing JavaScript Array functions in Internet Explorer (indexOf, forEach, etc.) [closed]
...me instances, version 8) do not implement key functions, in particular on Array (such as forEach , indexOf , etc).
6 An...
Get all unique values in a JavaScript array (remove duplicates)
I have an array of numbers that I need to make sure are unique. I found the code snippet below on the internet and it works great until the array has a zero in it. I found this other script here on Stack Overflow that looks almost exactly like it, but it doesn't fail.
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Implode an array with JavaScript?
Can I implode an array in jQuery like in PHP?
7 Answers
7
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How to check that an object is empty in PHP?
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You can cast to an array and then check if it is empty or not
$arr = (array)$obj;
if (!$arr) {
// do stuff
}
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How to get an array of specific “key” in multidimensional array without looping
Let's assume I have the following multidimensional array (retrieved from MySQL or a service):
4 Answers
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Remove Item from ArrayList
I have an ArrayList suppose list , and it has 8 items A-H and now I want to delete 1,3,5 position Item stored in int array from the list how can I do this.
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