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Are Swift variables atomic?
...ditional keywords (similar to @lazy) might be introduced later on.
Update 07/20/15: according to this blogpost on singletons swift environment can make certain cases thread safe for you, i.e.:
class Car {
static let sharedCar: Car = Car() // will be called inside of dispatch_once
}
private le...
How can I get list of values from dict?
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Stop Chrome Caching My JS Files
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200
You can click the settings icon on top right corner ... | More Tools | Developer Tools | Networ...
Selecting text in an element (akin to highlighting with your mouse)
...election = window.getSelection();
selection.setBaseAndExtent(text, 0, text, 1);
}
}
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Use of *args and **kwargs [duplicate]
...(*args):
for count, thing in enumerate(args):
... print( '{0}. {1}'.format(count, thing))
...
>>> print_everything('apple', 'banana', 'cabbage')
0. apple
1. banana
2. cabbage
Similarly, **kwargs allows you to handle named arguments that you have not defined in advance:
&g...
Get OS-level system information
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206
You can get some limited memory information from the Runtime class. It really isn't exactly wha...
Bootstrap 3 Navbar Collapse
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Bootstrap 4
It's a native functionality: https://getbootstrap.com/docs/4.0/components/navbar/#responsive-behaviors
You have to use .navbar-expand{-sm|-md|-lg|-xl} classes:
<nav class="navbar navbar-expand-md navbar-light bg-light">
Bootstrap 3
@media (max-width: 991px) {
.navbar-hea...
Emacs bulk indent for Python
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edited Dec 10 '15 at 14:02
answered Apr 6 '10 at 14:08
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Auto margins don't center image in page
...his example the image is not centered. Why? My browser is Google Chrome v10 on windows 7, not IE.
9 Answers
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How do I check if an element is really visible with JavaScript? [duplicate]
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+100
For the point 2.
I see that no one has suggested to use document.elementFromPoint(x,y), to me it is the fastest way to test if an el...