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Setting CSS pseudo-class rules from JavaScript

...A function to cope with the cross-browser stuff: addCssRule = function(/* string */ selector, /* string */ rule) { if (document.styleSheets) { if (!document.styleSheets.length) { var head = document.getElementsByTagName('head')[0]; head.appendChild(bc.createEl('style')); } ...
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How to move screen without moving cursor in Vim?

... :help CTRL-E says Mnemonic: Extra lines. – Niko Bellic Jan 27 '17 at 23:55  |  show 1 more comm...
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Update MongoDB field using value of another field

....0 The way we do this is by $projecting our documents and use the $concat string aggregation operator to return the concatenated string. we From there, you then iterate the cursor and use the $set update operator to add the new field to your documents using bulk operations for maximum efficiency. ...
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advantage of tap method in ruby

... some_method ... some_object.serialize some_object end we can save extra line: def some_method ... some_object.tap{ |o| o.serialize } end In some situation this technique can save more then one line and make code more compact. ...
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Check if a string has white space

I'm trying to check if a string has white space . I found this function but it doesn't seem to be working: 7 Answers ...
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How do I convert a string to enum in TypeScript?

... Enums in TypeScript 0.9 are string+number based. You should not need type assertion for simple conversions: enum Color{ Red, Green } // To String var green: string = Color[Color.Green]; // To Enum / number var color : Color = Color[green]; Tr...
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PHP multidimensional array search by value

...compared types have to be exactly same, in this example you have to search string or just use == instead ===. Based on angoru answer. In later versions of PHP (>= 5.5.0) you can use one-liner. $key = array_search('100', array_column($userdb, 'uid')); Here is documentation: http://php.net/manu...
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Main differences between SOAP and RESTful web services in Java [duplicate]

... advantages of REST web services are: Lightweight - not a lot of extra XML markup Human Readable Results Easy to build - no toolkits required. SOAP also has some advantages: Easy to consume - sometimes Rigid - type checking, adheres to a contract Development tools For consuming...
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Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?

...just connect with sudo mysql. If you run sql : SELECT user,authentication_string,plugin,host FROM mysql.user; then you will see it : +------------------+-------------------------------------------+-----------------------+-----------+ | user | authentication_string ...
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.NET HttpClient. How to POST string value?

...ions.Generic; using System.Net.Http; class Program { static void Main(string[] args) { Task.Run(() => MainAsync()); Console.ReadLine(); } static async Task MainAsync() { using (var client = new HttpClient()) { client.BaseAddress = ...