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How to get a key in a JavaScript object by its value?
...allowing me to get the key for a value, or do I have to iterate the object and find it out manually?
27 Answers
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What's the difference between a Python “property” and “attribute”?
I am generally confused about the difference between a "property" and an "attribute", and can't find a great resource to concisely detail the differences.
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npm install vs. update - what's the difference?
What is the practical difference between npm install and npm update ? When should I use which?
5 Answers
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Understanding Python's “is” operator
...e value.
From the documentation for the is operator:
The operators is and is not test for object identity: x is y is true if and only if x and y are the same object.
Use the == operator instead:
print(x == y)
This prints True. x and y are two separate lists:
x[0] = 4
print(y) # prints [1...
How do I use prepared statements in SQlite in Android?
How do I use prepared statements in SQlite in Android?
5 Answers
5
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CSS media queries: max-width OR max-height
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Use a comma to specify two (or more) different rules:
@media screen and (max-width: 995px) , screen and (max-height: 700px) {
...
}
From https://developer.mozilla.org/en/CSS/Media_queries/
...In addition, you can combine multiple media queries in a comma-separated list; if any of the ...
Retrieve specific commit from a remote Git repository
... on my PC? The structure of remote repo is absolutely same as that of mine and hence there won't be any conflicts but I have no idea how to do this and I don't want to clone that huge repository.
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How to find list of possible words from a letter matrix [Boggle Solver]
...ictionary word that could be a solution must use only the grid's
# letters and have length >= 3. (With a case-insensitive match.)
import re
alphabet = ''.join(set(''.join(grid)))
bogglable = re.compile('[' + alphabet + ']{3,}$', re.I).match
words = set(word.rstrip('\n') for word in open('words')...
Get Slightly Lighter and Darker Color from UIColor
...the brightness property itself. All in all:
@implementation UIColor (LightAndDark)
- (UIColor *)lighterColor
{
CGFloat h, s, b, a;
if ([self getHue:&h saturation:&s brightness:&b alpha:&a])
return [UIColor colorWithHue:h
saturation:s
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Formatting floats without trailing zeros
...t formatting rather than scientific notation, etc etc. Yeah, not as slick and elegant as %g, but, it works (and I don't know how to force %g to never use scientific notation;-).
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