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C# Lambda expressions: Why should I use them?
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edited Jan 14 '14 at 7:48
Ted Johnson
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Adding a column to an existing table in a Rails migration
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If you have already run your original migration (before editing it), then you need to generate a new migration (rails generate migration add_email_to_users email:string will do the trick).
It will create a migration file containing line:
add_column :users, email, string
Then do a ...
How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
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Edited
ES6 solution:
[...new Set(a)];
Alternative:
Array.from(new Set(a));
Old response. O(n^2) (do not use it with large arrays!)
var arrayUnique = function(a) {
return a.reduce(function(p, c) {
if (p.ind...
How can I read inputs as numbers?
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edited May 17 '19 at 12:04
Georgy
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Styling every 3rd item of a list using CSS? [duplicate]
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edited Mar 31 '17 at 15:26
Baer Bradford
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answered Dec 3 '12 ...
How do I create an empty array/matrix in NumPy?
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edited Apr 1 '10 at 12:10
Peter Mortensen
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How to install pip with Python 3?
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edit: Manual installation and use of setuptools is not the standard process anymore.
If you're running Python 2.7.9+ or Python 3.4+
Congrats, you should already have pip installed. If you do not, read onward.
If you're runnin...
How to paste text to end of every line? Sublime 2
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edited May 22 '12 at 20:56
answered May 22 '12 at 20:45
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How can I convert comma separated string into a List
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edited Jan 14 '14 at 11:41
answered Feb 15 '12 at 20:59
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Divide a number by 3 without using *, /, +, -, % operators
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edited Aug 4 '18 at 5:57
community wiki
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