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CSS media queries: max-width OR max-height

...: 16/9) Code snippets and information derived from: CSS media queries by Mozilla Contributors (licensed under CC-BY-SA 2.5). Some code samples were used with minor alterations to (hopefully) increase clarity of explanation. ...
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Reserved keywords in JavaScript

..., delete null public var In return for const, true, char …Finally catch byte. share | improve this answer | follow | ...
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What does “Object reference not set to an instance of an object” mean? [duplicate]

...odified in such a way that the NullReferenceException should never be seen by a user: static void Main(string[] args) { var exampleClass = new ExampleClass(); var returnedClass = exampleClass.ExampleMethod(); if (returnedClass == null) { //throw a meaningful exception or gi...
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What is

...ge about the type parameter is required. [...] An upper bound is signified by the syntax: ? extends B where B is the upper bound. [...] it is permissible to declare lower bounds on a wildcard, using the syntax: ? super B where B is a lower bound. A List<? super Integer>, for example, includ...
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typeof for RegExp

...r example, checking if such object has any vital methods or properties, or by its internal class value (by using {}.toString.call(instaceOfMyObject)). share | improve this answer | ...
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How do I download a tarball from GitHub using cURL?

... from the homepage and was working. Now I get the certificate problem: ruby -e "$(curl -fsSL raw.github.com/mxcl/homebrew/go)" curl: (60) SSL certificate problem: unable to get local issuer certificate More details here: curl.haxx.se/docs/sslcerts.html curl performs SSL certificate verification ...
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What is the difference between object keys with quotes and without quotes?

...['12e34']. See my answer for more details. – Mathias Bynens Mar 6 '12 at 12:18 1 True but it woul...
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While loop to test if a file exists in bash

... it doesn't work? You might try to figure out if the file actually exists by adding: while [ ! -f /tmp/list.txt ] do sleep 2 # or less like 0.2 done ls -l /tmp/list.txt You might also make sure that you're using a Bash (or related) shell by typing 'echo $SHELL'. I think that CSH and TCSH use a...
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How to delete a word and go into insert mode in Vim?

... You can use "change inner word" by typing "ciw" to delete a word your cursor is on. The "inner" and "a" commands are great in Vim, also try "ci{" inside a {} block, or "ca{" if you also wish to remove the {} characters too. To translate these commands to ...
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Keep ignored files out of git status

...ate-index --assume-unchanged <file> or remove them from repository by git rm --cached <file> Edit This article explains that too share | improve this answer | ...