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Algorithm to detect intersection of two rectangles?
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The standard method would be to do the separating axis test (do a google search on that).
In short:
Two objects don't intersect if you can find a line that separates the two objects. e.g. the objects / all points of an object ar...
When should I use require() and when to use define()?
...laying around with requirejs for the last few days. I am trying to understand the differences between define and require.
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Checking if a folder exists (and creating folders) in Qt, C++
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Why it isn't static? QDir::exists("absolutepath") and QDir::mkdir(""absolutepath")
– yalov
Jun 19 '17 at 17:20
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Pass variables to Ruby script via command line
I've installed RubyInstaller on Windows and I'm running IMAP Sync but I need to use it to sync hundreds of accounts. If I could pass these variables to it via command line I could automate the whole process better.
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HTML5 Canvas 100% Width Height of Viewport?
I am trying to create a canvas element that takes up 100% of the width and height of the viewport.
7 Answers
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How to strike through obliquely with css
...with a CSS transform. Doing it this way adds no extra elements to the DOM, and adding/removing the strikethrough is a simple as adding/removing the class.
Here's a demo
Caveats
This will only work down to IE8. IE7 does not support :before, however will degrade gracefully in browsers that do supp...
How can I check whether a numpy array is empty or not?
...an always take a look at the .size attribute. It is defined as an integer, and is zero (0) when there are no elements in the array:
import numpy as np
a = np.array([])
if a.size == 0:
# Do something when `a` is empty
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How do I pass parameters into a PHP script through a webpage?
...er that the PHP script needs to run (which I normally pass through the command line when I am testing the script).
2 Answe...
Reordering arrays
...s.
Note that it returns an array of the removed elements.
Something nice and generic would be:
Array.prototype.move = function (from, to) {
this.splice(to, 0, this.splice(from, 1)[0]);
};
Then just use:
var ar = [1,2,3,4,5];
ar.move(0,3);
alert(ar) // 2,3,4,1,5
Diagram:
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git: switch branch without detaching head
I have a repository on github with a main branch (master) and a branch for some experimental work. I made some commits and pushed to the experimental branch and everything was fine.
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