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Difference between single quotes and double quotes in Javascript [duplicate]
I know that in PHP, the only difference between double quotes and single quotes is the interpretation of variable inside a string and the treatment of escape characters.
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Reusable library to get human readable version of file size?
..., 'Yi', suffix)
Supports:
all currently known binary prefixes
negative and positive numbers
numbers larger than 1000 Yobibytes
arbitrary units (maybe you like to count in Gibibits!)
Example:
>>> sizeof_fmt(168963795964)
'157.4GiB'
by Fred Cirera
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Difference between final static and static final
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@Annotation public protected private static final transient volatile
And for methods:
@Annotation public protected private abstract static final synchronized native strictfp
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impro...
How do I parallelize a simple Python loop?
...like concurrent.futures for this, available in Python3 since version 3.2 - and via backport to 2.6 and 2.7 on PyPi.
You can use threads or processes and use the exact same interface.
Multiprocessing
Put this in a file - futuretest.py:
import concurrent.futures
import time, random #...
Set UILabel line spacing
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Edit: Evidently NSAttributedString will do it, on iOS 6 and later. Instead of using an NSString to set the label's text, create an NSAttributedString, set attributes on it, then set it as the .attributedText on the label. The code you want will be something like this:
NSMutableAt...
How to create a numpy array of all True or all False?
...s very easily:
e.g. numpy.ones((2, 2)) or numpy.zeros((2, 2))
Since True and False are represented in Python as 1 and 0, respectively, we have only to specify this array should be boolean using the optional dtype parameter and we are done.
numpy.ones((2, 2), dtype=bool)
returns:
array([[ True, ...
How do I change bash history completion to complete what's already on the line?
I found a command a couple of months ago that made my bash history auto-complete on what's already on the line when pressing the up arrow:
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How to remove all characters after a specific character in python?
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Split on your separator at most once, and take the first piece:
sep = '...'
rest = text.split(sep, 1)[0]
You didn't say what should happen if the separator isn't present. Both this and Alex's solution will return the entire string in that case.
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JavaScript for…in vs for
Do you think there is a big difference in for...in and for loops? What kind of "for" do you prefer to use and why?
23 Answe...
Using “Object.create” instead of “new”
...xist, if you call again this method on an existing object instance, the id and name properties will change.
Object.create lets you initialize object properties using its second argument, e.g.:
var userB = {
sayHello: function() {
console.log('Hello '+ this.name);
}
};
var bob = Object.cre...