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How to use gitignore command in git
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There is a file in your git root directory named .gitignore. It's a file, not a command. You just need to insert the names of the files that you want to ignore, and they will automatically be ignored. For example, if you wanted to ignore all emacs autos...
How do I detect “shift+enter” and generate a new line in Textarea?
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)
}
}
ReactDOM.render(<App />, document.getElementById('root'));
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<d...
What is /dev/null 2>&1?
...Command ls -l /dev/null will give you details of this file:
crw-rw-rw-. 1 root root 1, 3 Mar 20 18:37 /dev/null
Did you observe crw? Which means it is a pseudo-device file which is of character-special-file type that provides serial access.
/dev/null accepts and discards all input; produces n...
How do I mock a service that returns promise in AngularJS Jasmine unit test?
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@JimAho Typically you just inject $rootScope and call $digest on that.
– dnc253
May 18 '15 at 15:39
1
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How can I Remove .DS_Store files from a Git repository?
...ates the file if not present, this command should be executed from project root folder
– Saif
Aug 2 '17 at 7:44
@Saif ...
How do I test a file upload in rails?
...ctionDispatch::Http::UploadedFile.new({
:tempfile => File.new(Rails.root.join("test/fixtures/files/test.jpg"))
})
assert model.valid?
This way you can use the same methods you are using in your validations (as for example tempfile).
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java.lang.OutOfMemoryError: Java heap space
...in your application
If you find memory leaks in your application, find the root cause with help of profiling tools like MAT, Visual VM , jconsole etc. Once you find the root cause, fix the leaks.
Important notes from oracle article
Cause: The detail message Java heap space indicates object cou...
How to copy in bash all directory and files recursive?
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So, to clarify, capital -R option will copy the root dir again; small -r option keeps the root paths the same.
– AnneTheAgile
Aug 7 '14 at 13:27
8
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How to set environment variable for everyone under my linux system?
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Scripts are not used for ROOT user.
– Val
Jul 26 '14 at 7:36
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What is the advantage of using heredoc in PHP? [closed]
...ot use double quotes within there in the first place. That only works with MySQL, and only when that server doesn't run in --ansi compliant mode. SQL strings must use single quotes.
– mario
Apr 15 '11 at 7:27
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