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Accessing elements of Python dictionary by index
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>>> mydict["Apple"]
{'American': '16', 'Mexican': 10, 'Chinese': 5}
And getting how many of them are American (16), do like this:
>>> mydict["Apple"]["American"]
'16'
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Programmatically get height of navigation bar
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259
Do something like this ?
NSLog(@"Navframe Height=%f",
self.navigationController.na...
Null vs. False vs. 0 in PHP
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edited Jul 2 '15 at 8:39
Robert
1,1461515 silver badges3434 bronze badges
answered Sep 26 '08...
Which equals operator (== vs ===) should be used in JavaScript comparisons?
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6597
The strict equality operator (===) behaves identically to the abstract equality operator (==) ...
Lock, mutex, semaphore… what's the difference?
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554
A lock allows only one thread to enter the part that's locked and the lock is not shared with ...
Run an app on a multiple devices automatically in Android Studio
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305
This is almost too easy, actually. When you see the list of devices come up after launching the ...
Programmatically generate video or animated GIF in Python?
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Matt Bierner
29.1k66 gold badges8585 silver badges125125 bronze badges
answered Mar 11 '16 at 15:19
AlmarAlmar
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Why does .NET use banker's rounding as default?
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5 Answers
5
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How do CSS triangles work?
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As alex said, borders of equal width butt up against each other at 45 degree angles:
When you have no top border, it looks like this:
Then you give it a width of 0...
...and a height of 0...
...and finally, you make the two side borders transparent:
That results in a triangle.
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Truncating floats in Python
...the IEEE 64-bit floating-point format, you get
0.2999999999999999888977697537484345957637...
so a naive implementation would come up with 0.2 even though that's probably not what you want. For more on floating-point representation error, see the Python tutorial.
It's very rare to be working with...