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json.dumps vs flask.jsonify
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answered Nov 1 '12 at 7:20
Kenneth WilkeKenneth Wilke
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Update an outdated branch against master in a Git repo
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edited Mar 2 '12 at 5:04
random
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answered Jan...
What is the !! (not not) operator in JavaScript?
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Converts Object to boolean. If it was falsey (e.g. 0, null, undefined, etc.), it will be false, otherwise, true.
!oObject // inverted boolean
!!oObject // non inverted boolean so true boolean representation
So !! is not an operator, it's just the ! operator twice.
Real W...
How to use chrome web inspector to view hover code
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answered Jul 21 '11 at 15:30
Travis NorthcuttTravis Northcutt
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compilation warning: no rule to process file for architecture i386
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Because this is the list of source files that will be compiled, and normally you have already included <file>.h inside your <file&g...
Get file size, image width and height before upload
... sources will be a URL representing the Blob object
<img src="blob:null/026cceb9-edr4-4281-babb-b56cbf759a3d">
const EL_browse = document.getElementById('browse');
const EL_preview = document.getElementById('preview');
const readImage = file => {
if ( !(/^image\/(png|jpe?g|gif...
What is http multipart request?
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IggyIggy
7,20933 gold badges2828 silver badges2020 bronze badges
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Deleting array elements in JavaScript - delete vs splice
... myArray = ['a', 'b', 'c', 'd']
["a", "b", "c", "d"]
> delete myArray[0]
true
> myArray[0]
undefined
Note that it is not in fact set to the value undefined, rather the property is removed from the array, making it appear undefined. The Chrome dev tools make this distinction clear by pr...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
...ates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular implementation?
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How to search for occurrences of more than one space between words in a line
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edited Sep 21 '10 at 10:14
answered Sep 21 '10 at 9:16
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