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What's the difference between CSS classes .foo.bar (without space) and .foo .bar (with space) [dupli

Would you please explain me the difference between these two CSS classes syntax: 5 Answers ...
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What is the list of valid @SuppressWarnings warning names in Java?

...pends on your IDE or compiler. Here is a list for Eclipse Galileo: all to suppress all warnings boxing to suppress warnings relative to boxing/unboxing operations cast to suppress warnings relative to cast operations dep-ann to suppress warnings relative to deprecated annotation depr...
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Reload .profile in bash shell script (in unix)?

I'm new to bash shell scripting, and have come across a challenge. I know I can reload my ".profile" file by just doing: 5 ...
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How to get element by class name? [duplicate]

... The name of the DOM function is actually getElementsByClassName, not getElementByClassName, simply because more than one element on the page can have the same class, hence: Elements. The return value of this will be a NodeList instance, or a superset of the No...
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Are (non-void) self-closing tags valid in HTML5?

... In HTML 4, <foo / (yes, with no > at all) means <foo> (which leads to <br /> meaning <br>> (i.e. <br>>) and <title/hello/ meaning <title>hello</title>). This is an SGML rule that browsers did a very poor job of su...
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Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery

... using jQuery, for slightly shorter code. Pros: any string can be dynamically inserted into the style Cons: original styles aren't altered, just overridden; repeated (ab)use can make the DOM grow arbitrarily large 3) Alter a different DOM attribute You can also to use attr() in your CSS to re...
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How to effectively work with multiple files in Vim

...e and close a tab, you can also use ZZ instead of :wq (just like would normally save and close) – Andreas Grech May 5 '10 at 14:34 ...
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Linux delete file with size 0 [duplicate]

... This will delete all the files in a directory (and below) that are size zero. find /tmp -size 0 -print -delete If you just want a particular file; if [ ! -s /tmp/foo ] ; then rm /tmp/foo fi ...
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Why do we usually use || over |? What is the difference?

...ing would be to consider the following example. Boolean b = true; if(b || foo.timeConsumingCall()) { //we entered without calling timeConsumingCall() } Another benefit, as Jeremy and Peter mentioned, for short-circuiting is the null reference check: if(string != null && string.isEmpt...
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How to get a path to a resource in a Java JAR file

... you can add 'rsrc:' when you call your resource in order to open it. like new File("rsrc:filename.txt") this will load filename.txt which is packed inside the root of your jar – gipsh Jun 16 '16 at 18:45 ...