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How can I use if/else in a dictionary comprehension?
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31
Worth mentioning that you don't need to have an if-else condition for both the key and the value. For example, {(a if condition else b): v...
Android ViewPager with bottom dots
I want to add 3 bottom dots to my ViewPager, like this.
10 Answers
10
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Error installing libv8: ERROR: Failed to build gem native extension
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try this one:
gem install libv8 -v '3.16.14.3' -- --with-system-v8
Note : Because libv8 is the interface for the V8 engine used by therubyracer,
you may need to use libv8, even if you have V8 installed already. If
you wish to use your own V8 installat...
How do I find out which settings.xml file maven is using
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223
Use the Maven debug option, ie mvn -X :
Apache Maven 3.0.3 (r1075438; 2011-02-28 18:31:09+0100)...
Calculate the median of a billion numbers
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53
Ah, my brain has just kicked into gear, I have a sensible suggestion now. Probably too late if t...
Python set to list
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Your code does work (tested with cpython 2.4, 2.5, 2.6, 2.7, 3.1 and 3.2):
>>> a = set(["Blah", "Hello"])
>>> a = list(a) # You probably wrote a = list(a()) here or list = set() above
>>> a
['Blah', 'Hello']
Check that you didn't overwrite list by accident...
dispatch_after - GCD in Swift?
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I recommend using @matt's really nice delay function.
EDIT 2:
In Swift 3, there will be new wrappers for GCD. See here: https://github.com/apple/swift-evolution/blob/master/proposals/0088-libdispatch-for-swift3.md
The original example would be written as follows in Swift 3:
let deadlineTime = ...
Setting href attribute at runtime
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379
To get or set an attribute of an HTML element, you can use the element.attr() function in jQue...
How to get method parameter names?
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363
Take a look at the inspect module - this will do the inspection of the various code object pro...
Switch case with fallthrough?
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314
Use a vertical bar (|) for "or".
case "$C" in
"1")
do_this()
;;
"2" | "3")
do_wha...