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vertical divider between two columns in bootstrap
...</div>
</div>
</div>
https://jsfiddle.net/8z1pag7s/
tested on Bootstrap 4.1
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Backwards migration with Django South
...he bare "state" number - in this case 00xx - is enough. When improving and testing a migration you can have both commands in the history: forward (no argument), backward with previous state number.
– Tomasz Gandor
Feb 1 '13 at 9:14
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How to find index of list item in Swift?
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let index = cells.index(where: { (item) -> Bool in
item.foo == 42 // test if this is the item you're looking for
})
Update for Swift 4.2:
With Swift 4.2, index is no longer used but is separated into firstIndex and lastIndex for better clarification. So depending on whether you are looking ...
How can I reverse a NSArray in Objective-C?
...nal array is not mutated. Apple documents that immutability should not be tested for at run time, but be assumed based on the returned type, so returning an NSMutableArray in this case is perfectly correct code.
– Peter N Lewis
Feb 26 '15 at 0:06
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Split array into chunks
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I tested the different answers into jsperf.com. The result is available there: https://web.archive.org/web/20150909134228/https://jsperf.com/chunk-mtds
And the fastest function (and that works from IE8) is this one:
function ...
Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar
...I personally needed this for a dynamic navbar rather than a toolbar, but I tested it with a toolbar and the code is nearly the same:
// create button
UIButton* backButton = [UIButton buttonWithType:101]; // left-pointing shape!
[backButton addTarget:self action:@selector(backAction) forControlEvent...
Why is a boolean 1 byte and not 1 bit of size?
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I think bt addresses a byte offset and then tests the bit at a given offset, regardless, when specifying an address you go in bytes...bit offset literals would get a bit wordy (excuse the pun).
– user7116
Jan 7 '11 at 16:12
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“You have mail” message in terminal, os X [closed]
...e/touchpad. You may be able to hit q to abort viewing the message (I can't test that just now, but try it).To delete all messages, you'd use command d *. To delete the second message, you'd use d 2, and so on. Use them at the mail ? prompt.
– inspirednz
May 30 ...
Find the most common element in a list
...t, reusable functionality, and lets you delegate some tricky logic to well-tested standard library components. Consider for example:
import itertools
import operator
def most_common(L):
# get an iterable of (item, iterable) pairs
SL = sorted((x, i) for i, x in enumerate(L))
# print 'SL:', S...
jQuery how to bind onclick event to dynamically added HTML element [duplicate]
...h the handler to the element directly, instead of capturing all clicks and test for selector match.
– Tobias
May 28 '14 at 15:23
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