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Preferred method to store PHP arrays (json_encode vs serialize)
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20 Answers
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Different ways of clearing lists
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>>> b = a
>>> del a[:] # equivalent to del a[0:len(a)]
>>> print(a)
[]
>>> print(b)
[]
>>> a is b
True
You could also do:
>>> a[:] = []
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How do I get the width and height of a HTML5 canvas?
... and height attributes are not present in the canvas element, the default 300x150 size will be returned. To dynamically get the correct width and height use the following code:
const canvasW = canvas.getBoundingClientRect().width;
const canvasH = canvas.getBoundingClientRect().height;
Or using th...
How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?
...e element, so why do you have to set margin-top:-8px; and not margin-top:-50%;?
Well, vertical centering in CSS is harder than it should be. When setting even top or bottom margins in %, the value is calculated as a percentage always relative to the width of the containing block. This is rather a c...
How do I create a right click context menu in Java Swing?
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edited Mar 19 '19 at 17:06
Ahmed Ashour
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answ...
cannot load such file — bundler/setup (LoadError)
I'm setting Rails 4 application with Ruby 2.0, but I'm getting "Web application could not be started" and get this trace:
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prototype based vs. class based inheritance
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203
There are about a hundred terminology issues here, mostly built around someone (not you) trying...
What is a Y-combinator? [closed]
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206
If you're ready for a long read, Mike Vanier has a great explanation. Long story short, it allo...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
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answered Feb 10 '12 at 18:33
cjohncjohn
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node.js global variables?
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answered Mar 27 '11 at 20:10
masylummasylum
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