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What is the difference between Python's list methods append and extend?
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append: Appends object at the end.
x = [1, 2, 3]
x.append([4, 5])
print (x)
gives you: [1, 2, 3, [4, 5]]
extend: Extends list by appending elements from the iterable.
x = [1, 2, 3]
x.extend([4, 5])
print (x)
gives you: [1, 2, 3, 4, 5]
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Why doesn't print work in a lambda?
...back-ported print function if you are using the latest Python 2.x:
In [1324]: from __future__ import print_function
In [1325]: f = lambda x: print(x)
In [1326]: f("HI")
HI
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How to initialize an array's length in JavaScript?
...assing an integer to the Array constructor using the var test = new Array(4); syntax.
18 Answers
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Xcode 4: How do you view the console?
...em to find a way to have the console run (to show NSLog comments) in XCode 4. The normal method for the previous version of XCode does not work. Does anyone have an idea of how to accomplish this?
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Hiding elements in responsive layout?
...hone, .hidden-tablet etc. are unsupported/obsolete.
UPDATE:
In Bootstrap 4 there are 2 types of classes:
The hidden-*-up which hide the element when the viewport is at the given breakpoint or wider.
hidden-*-down which hide the element when the viewport is at the given breakpoint or smaller.
A...
Web Service vs WCF Service
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Olivier De Meulder
2,40233 gold badges2323 silver badges2929 bronze badges
answered Dec 9 '08 at 0:05
rbraybrbrayb
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Print new output on same line [duplicate]
...ord:
>>> for i in range(1, 11):
... print(i, end='')
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12345678910>>>
Note that you'll have to print() the final newline yourself. BTW, you won't get "12345678910" in Python 2 with the trailing comma, you'll get 1 2 3 4 5 6 7 8 9 10 instead.
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How can I check the system version of Android?
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424
Check android.os.Build.VERSION.
CODENAME: The current development codename, or the stri...
Bash: Copy named files recursively, preserving folder structure
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154
Have you tried using the --parents option? I don't know if OS X supports that, but that works on...
How to validate date with format “mm/dd/yyyy” in JavaScript?
...tring)
{
// First check for the pattern
if(!/^\d{1,2}\/\d{1,2}\/\d{4}$/.test(dateString))
return false;
// Parse the date parts to integers
var parts = dateString.split("/");
var day = parseInt(parts[1], 10);
var month = parseInt(parts[0], 10);
var year = parseIn...