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Converting camel case to underscore case in ruby
...A-Z][a-z])/, '\1_\2').
gsub(/([a-z])([A-Z])/, '\1_\2').
downcase
end
"FooBar".snake_case #=> "foo_bar"
"HeadlineCNNNews".snake_case #=> "headline_cnn_news"
"CNN".snake_case #=> "cnn"
Using regular expression in css?
...; div:first-child
Match a div with a specific attribute.
#main > div[foo="bar"]
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How to get the focused element with jQuery?
...document.activeElement;
// Does the element have focus:
var hasFocus = $('foo').is(':focus');
// No jQuery:
elem === elem.ownerDocument.activeElement;
Which one should you use? quoting the jQuery docs:
As with other pseudo-class selectors (those that begin with a ":"), it is recommended to p...
Get integer value from string in swift
...nt? = stringNumber.toInt(). Then the type safety system will be aware that foo may not exist. Putting ! will of course crash if your string can't convert to a number.
– gwcoffey
Jun 3 '14 at 15:54
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Python String and Integer concatenation [duplicate]
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(Correction: If you do range={(1,10): "foo"}, then range[1,10] is in fact a syntactically valid expression.)
– Tim Pietzcker
Nov 17 '12 at 11:10
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How to Get True Size of MySQL Database?
...er by the database engine itself, or can be reclaimed using OPTIMIZE TABLE foo (MyISAM), or recreate + analyze for InnoDB tables.
– razzed
Dec 5 '15 at 16:35
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Move cursor to end of file in vim
...fore not go to end of line if for example the last line is This is a test. Foo bar.. It will work for a lot of code though, which is often not considered sentences and will therefore go to the end anyway.
– timss
May 2 '16 at 6:54
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How can I disable HREF if onclick is executed?
...our using preventDefault and pass the event within your HTML.
<a href=/foo onclick= yes_js_login(event)>Lorem ipsum</a>
yes_js_login = function(e) {
e.preventDefault();
}
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grep a tab in UNIX
...ing <Ctrl-V> <TAB> (hitting Ctrl-V then typing tab)
Using awk: foo | awk '/\t/'
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How to convert a char array to a string?
...e of the string variable. You can use any other variable name (e.g. string foo(arr);). The conversion is done by the constructor of std::string that is called implicitly.
– Christopher K.
Sep 11 '14 at 8:48
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