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Test if lists share any items in python
...ection method have to allocate new memory for the intermediary variables:
from timeit import timeit
>>> timeit('bool(set(a) & set(b))', setup="a=list(range(1000));b=list(range(1000))", number=100000)
26.077727576019242
>>> timeit('any(i in a for i in b)', setup="a=list(range(1...
How do I get jQuery autocompletion in TypeScript?
...a global location where this file can be placed to enable to be referenced from anywhere?
– Rick Love
Oct 10 '12 at 4:45
23
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What does '--set-upstream' do?
...th the current local branch checked-out),
will attempt to bring in commits from the <remote-branch> into the current local branch.
One way to avoid having to explicitly type --set-upstream is to use its shorthand flag -u as follows:
git push -u origin local-branch
This sets the upstream ass...
How to detect if multiple keys are pressed at once using JavaScript?
...g for optimization. This is because the script tag blocks further elements from loading until its script is finished downloading. Putting it ahead of the content allows the content to load beforehand.
B (which is where your interest lies) You can check for one or more keys at a time where /*insert c...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
Two-part question from an iOS developer learning Android, working on an Android project that will make a variety of requests from JSON to image to streaming download of audio and video:
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What is the syntax to insert one list into another list in python?
...[1, 2, 3, [4, 5, 6]]
There's also the extend method, which appends items from the list you pass as an argument:
>>> list_one = [1,2,3]
>>> list_two = [4,5,6]
>>> list_one.extend(list_two)
>>> list_one
[1, 2, 3, 4, 5, 6]
And of course, there's the insert metho...
Can grep show only words that match search pattern?
Is there a way to make grep output "words" from files that match the search expression?
14 Answers
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How do I get the day of the week with Foundation?
...
[dateFormatter setDateFormat:@"EEEE"];
NSLog(@"%@", [dateFormatter stringFromDate:[NSDate date]]);
outputs current day of week as a string in locale dependent on current regional settings.
To get just a week day number you must use NSCalendar class:
NSCalendar *gregorian = [[[NSCalendar alloc]...
Ruby on Rails - Import Data from a CSV file
I would like to import data from a CSV file into an existing database table. I do not want to save the CSV file, just take the data from it and put it into the existing table. I am using Ruby 1.9.2 and Rails 3.
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explicit casting from super class to subclass
...ever possibly work.
Because you're essentially just stopping the compiler from complaining, every time you cast it's important to check that you won't cause a ClassCastException by using instanceof in an if statement (or something to that effect.)
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