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Why is my program slow when looping over exactly 8192 elements?
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959
The difference is caused by the same super-alignment issue from the following related questions...
Extract a number from a string (JavaScript)
... leading non-digits with nothing
in the general case:
thenum = "foo3bar5".match(/\d+/)[0] // "3"
Since this answer gained popularity for some reason, here's a bonus: regex generator.
function getre(str, num) {
if(str === num) return 'nice try';
var res = [/^\D+/g,/\D+$/g,/^\D+|\D+$/...
Couldn't connect to server 127.0.0.1:27017
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edited Oct 11 '12 at 3:59
answered Oct 11 '12 at 3:54
Tr...
How to exclude certain directories/files from git grep search
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5 Answers
5
Active
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How to position a div in the middle of the screen when the page is bigger than the screen
... it at http://jsfiddle.net/XEUbc/1/
#mydiv {
position:fixed;
top: 50%;
left: 50%;
width:30em;
height:18em;
margin-top: -9em; /*set to a negative number 1/2 of your height*/
margin-left: -15em; /*set to a negative number 1/2 of your width*/
border: 1px solid #ccc;
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How to get nice formatting in the Rails console
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255
The y method is a handy way to get some pretty YAML output.
y ProductColor.all
Assuming you ...
Replace only some groups with Regex
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315
A good idea could be to encapsulate everything inside groups, no matter if need to identify them...
How to do what head, tail, more, less, sed do in Powershell? [closed]
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edited Mar 31 '16 at 5:42
answered Mar 13 '12 at 10:51
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image processing to improve tesseract OCR accuracy
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edited Apr 20 '18 at 9:51
Eric Platon
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answere...
User recognition without cookies or local storage
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+350
Introduction
If I understand you correctly, you need to identify a user for whom you don't have a Unique Identifier, so you want to ...