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Convert a negative number to a positive one in JavaScript
...nt to even consider ~x+1. It's pretty quick, but not clear as to what it's doing. WHipped this up to show the difference: jsperf.com/absolute-int
– omgaz
Oct 15 '14 at 23:25
22
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WatiN or Selenium? [closed]
...tion soon. It seems that everyone recommends WatiN and Selenium . Which do you prefer for automated testing of ASP.NET web forms? Which of these products work better for you?
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What is the difference between float and double?
I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affect the results. Is this really the case? When are floats and doubles interchangeable? What are the d...
Using “Object.create” instead of “new”
Javascript 1.9.3 / ECMAScript 5 introduces Object.create , which Douglas Crockford amongst others has been advocating for a long time. How do I replace new in the code below with Object.create ?
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node.js fs.readdir recursive directory search
...p. So in this case, it's probably better to use a parallel loop because it doesn't matter what order the walk completes in, just as long as it completes and returns the results (unless you want them in order).
A parallel loop would look like this:
var fs = require('fs');
var path = require('path')...
Counting the number of option tags in a select tag in jQuery
How do I count the number of <option> s in a <select> DOM element using jQuery?
8 Answers
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Redirecting to a relative URL in JavaScript
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You can do a relative redirect:
window.location.href = '../'; //one level up
or
window.location.href = '/path'; //relative to domain
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How To Remove Outline Border From Input Button
...ton"]::-moz-focus-inner {
border: 0;
}
Demo
Accessibility (A11Y)
/* Don't forget! User accessibility is important */
input[type="button"]:focus {
/* your custom focused styles here */
}
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Check if a table exists in Rails
...ebsite so I want to make sure they have migrated the table before they can do a rake task which will populate that respective table.
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Fastest way to convert Image to Byte array
...ossless format. If you're worried about CPU resources, pick a format which doesn't bother compressing - just raw ARGB pixels, for example. But of course that will lead to a larger byte array.
Note that if you pick a format which does include compression, there's no point in then compressing the byt...