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how to concatenate two dictionaries to create a new one in Python? [duplicate]
...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}; d3={10:8,13:22}' \
'd4 = dict(d1, **d2); d4.update(d3)'
1000000 loops, best...
Best Way to read rss feed in .net Using C#
What is the best way to read RSS feeds ?
5 Answers
5
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Traits in PHP – any real world examples/best practices? [closed]
...to languages that have Traits for some time now to learn the accepted Good/Best practices. My current opinion on Trait is that you should only use them for code that you would have to duplicate in other classes that share the same functionality.
Example for a Logger trait:
interface Logger
{
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How do I find the duplicates in a list and create another list with them?
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$ python -mtimeit -s 'import test' 'test.JohnLaRooy(test.l)'
10000 loops, best of 3: 74.6 usec per loop
$ python -mtimeit -s 'import test' 'test.moooeeeep(test.l)'
10000 loops, best of 3: 91.3 usec per loop
$ python -mtimeit -s 'import test' 'test.thg435(test.l)'
1000 loops, best of 3: 266 usec per...
REST URI convention - Singular or plural name of resource while creating it
...23, 456 files in it.
Neither way is right or wrong, go with what you like best.
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What’s the best RESTful method to return total number of items in an object?
...e when you don't need actual items
Franci Penov's answer is certainly the best way to go so you always return items along with all additional metadata about your entities being requested. That's the way it should be done.
but sometimes returning all data doesn't make sense, because you may not nee...
Open-sided Android stroke?
...stead of 1dp. This will make the line always visible at all densities. The best solution would be to create dimension resources for each density, to get the best size for each device.
Edit 2
Fun, but I tried to use this 6 years later and I can't get a good result on Lollipop devices.
Probably the...
How can I remove a specific item from an array?
...ent at an index? A simple, elegant, myArray.remove(index); seems to be the best solution and is implemented in many other languages (a lot of them older than JavaScript.)
– default123
Sep 10 at 0:16
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Better way to sum a property value in an array
...undefined) in one of the objects in the array. I don't know if this is the best check, but it worked for my case: function(items, prop) { return items.reduce(function(a, b) { if (!isNaN(b[prop])) { return a + b[prop]; } else { return a ...
How to make a flat list out of list of lists?
...[7], [8,9]]*99' '[item for sublist in l for item in sublist]'
10000 loops, best of 3: 143 usec per loop
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' 'sum(l, [])'
1000 loops, best of 3: 969 usec per loop
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' 'reduce(lambda x,y: x+y,l)'
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