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Using the Swift if let with logical AND operator &&
...r as? UITabBarController where tabBarController.viewControllers.count > 0 {
println("do stuff")
}
This uses the where clause.
Another example, this time casting AnyObject to Int, unwrapping the optional, and checking that the unwrapped optional meets the condition:
if let w = width a...
Get all keys of an NSDictionary as an NSArray
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answered Aug 14 '11 at 13:30
YujiYuji
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How can I get every nth item from a List?
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iOS 7 TextKit - How to insert images inline with text?
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Salman Zaidi
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answered Jan 5 '14 at 5:57
bilobatumbilobatum
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Accessing outside variable using anonymous function as params
...nce).
– Joel Harkes
Jul 24 '18 at 5:04
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Is there a way to automatically build the package.json file for Node.js projects
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Python pandas Filtering out nan from a data selection of a column of strings
...en drop where name is NaN:
In [87]:
nms
Out[87]:
movie name rating
0 thg John 3
1 thg NaN 4
3 mol Graham NaN
4 lob NaN NaN
5 lob NaN NaN
[5 rows x 3 columns]
In [89]:
nms = nms.dropna(thresh=2)
In [90]:
nms[nms.name.notnull()]
Out[90]:
m...
How to make a element expand or contract to its parent container?
... the container, it's the size of your drawing. Define your viewBox to be 100 units in width, then define your rect to be 10 units. After that, however large you scale the SVG, the rect will be 10% the width of the image.
s...
possible EventEmitter memory leak detected
... have? That isn't normal behavior.
In short, its: process.setMaxListeners(0);
Also see: node.js - request - How to “emitter.setMaxListeners()”?
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