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Python: split a list based on a condition?
What's the best way, both aesthetically and from a performance perspective, to split a list of items into multiple lists based on a conditional? The equivalent of:
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Test if a vector contains a given element
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Both the match() (returns the first appearance) and %in% (returns a Boolean) functions are designed for this.
v <- c('a','b','c','e')
'b' %in% v
## returns TRUE
match('b',v)
## returns the first location of 'b', in this case: 2
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Simulating tremor (from e.g. Parkinson's Disease) with the mouse on a webpage?
...code on, using the Pointer Lock API.
I forked this pointer-lock-demo repo and modified it to add a random movement element.
Here is the link to my GitHub page: https://aristocrates.github.io/pointer-lock-demo
And here is the link to my repo: https://github.com/aristocrates/pointer-lock-demo
The j...
What's the difference between belongs_to and has_one?
What is the difference between a belongs_to and a has_one ?
5 Answers
5
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How to mock localStorage in JavaScript unit tests?
...foreEach(function () {
var store = {};
spyOn(localStorage, 'getItem').andCallFake(function (key) {
return store[key];
});
spyOn(localStorage, 'setItem').andCallFake(function (key, value) {
return store[key] = value + '';
});
spyOn(localStorage, 'clear').andCallFake(function () {...
Changing the image source using jQuery
...id the trick. .destroy() doesn't go nearly far enough. Nuking all the html and than init again actually works when swapping out images of various sizes and such.
– Matt J.
Apr 11 '14 at 16:36
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In Python, how do you convert a `datetime` object to seconds?
...ies for the simple question... I'm new to Python... I have searched around and nothing seems to be working.
10 Answers
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RegEx to find two or more consecutive chars
...{2} without the comma should also work, right?
– Alexander Mills
Sep 6 '18 at 21:09
16
Alexander,...
How to set layout_weight attribute dynamically from code?
How can I set the value for the attribute layout_weight for button in android dynamically from java code ?
9 Answers
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Convert integer into byte array (Java)
...order ensures that result[0] == 0xAA, result[1] == 0xBB, result[2] == 0xCC and result[3] == 0xDD.
Or alternatively, you could do it manually:
byte[] toBytes(int i)
{
byte[] result = new byte[4];
result[0] = (byte) (i >> 24);
result[1] = (byte) (i >> 16);
result[2] = (byte) (i ...