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Sass - Converting Hex to RGBa for background opacity
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edited Jan 23 '19 at 13:18
Daniel Werner
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answered Ju...
Using the Swift if let with logical AND operator &&
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59
In Swift 3 Max MacLeod's example would look like this:
if let tabBarController = window!.rootVi...
Difference between setTimeout with and without quotes and parentheses
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edited Jul 9 '18 at 17:37
Flimzy
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Generating a UUID in Postgres for Insert statement?
...ust load it into your database to use it.
For modern PostgreSQL versions (9.1 and newer) that's easy:
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
but for 9.0 and below you must instead run the SQL script to load the extension. See the documentation for contrib modules in 8.4.
For Pg 9.1 and ne...
How to name variables on the fly?
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ShaneShane
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Remove insignificant trailing zeros from a number?
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Cristian SanchezCristian Sanchez
25.9k1010 gold badges5353 silver badges5959 bronze badges
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“Find next” in Vim
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911
It is n for next and N for previous.
And if you use reverse search with ? (for example, ?cake...
Django gives Bad Request (400) when DEBUG = False
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9 Answers
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Active
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How do SQL EXISTS statements work?
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98
Think of it this way:
For 'each' row from Suppliers, check if there 'exists' a row in the Ord...
How to map with index in Ruby?
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If you're using ruby 1.8.7 or 1.9, you can use the fact that iterator methods like each_with_index, when called without a block, return an Enumerator object, which you can call Enumerable methods like map on. So you can do:
arr.each_with_index.map { |x,i| ...