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how to concatenate two dictionaries to create a new one in Python? [duplicate]
...resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict constructor to the hilt, then one update:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d...
Does Swift support reflection?
...TypeName(myvar3))")
The output is:
TypeName0 = NSString
TypeName1 = _TtC13__lldb_expr_014PureSwiftClass
TypeName2 = _TtSi
TypeName3 = _TtSS
Ewan Swick's blog entry helps to decipher these strings:
e.g. _TtSi stands for Swift's internal Int type.
Mike Ash has a great blog entry covering the s...
Are unused CSS images downloaded?
...Craver
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1
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How to handle back button in activity
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answered Mar 15 '11 at 13:25
Saurabh PareekSaurabh Pareek
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What is the difference between and ?
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131
<html lang="en">
<html lang="en-US">
The first lang tag only specifies a la...
Java enum - why use toString instead of name
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AlexRAlexR
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16
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Git Commit Messages: 50/72 Formatting
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– Paused until further notice.
Dec 8 '13 at 15:42
5
Github will hide commit message text after the ...
unable to copy/paste in mingw shell
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answered May 3 '13 at 16:50
AndreasAndreas
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WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings
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Drew Noakes
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answered Aug 27 '09 at 11:05
ArcturusArctu...
Python (and Python C API): __new__ versus __init__
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139
The difference mainly arises with mutable vs immutable types.
__new__ accepts a type as the f...