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What is the meaning of “$” sign in JavaScript

...ipt libraries copied this idea. Prototype also introduced a $$ function to select elements using CSS selector. jQuery also adapted $ function but expanded to make it accept all kinds of 'selectors' to get the elements you want. Now, if you are already using Prototype in your project and wanted to ...
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How to kill all processes with a given partial name? [closed]

... If you need more flexibility in selecting the processes use for KILLPID in `ps ax | grep 'my_pattern' | awk ' { print $1;}'`; do kill -9 $KILLPID; done You can use grep -e etc. ...
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“405 method not allowed” in IIS7.5 for “PUT” method

...ick on "WebDAV". 5.Click on "Request Restrictions". 6.In the tab "Verbs" select "All verbs" . 7.Press OK. share | improve this answer | follow | ...
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How can I check if an element exists in the visible DOM?

...to the original question). That's as simple as using any of the browser's selecting method, and checking it for a truthy value (generally). For example, if my element had an id of "find-me", I could simply use... var elementExists = document.getElementById("find-me"); This is specified to eithe...
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What are C++ functors and their uses?

...te: class SomeClass { std::string state_; public: SomeClass(const char* s) : state_(s) {} void method( std::string param ) { std::cout << state_ << param << std::endl; } }; SomeClass *inst = new SomeClass("Hi, i am "); boost::function< void (std::st...
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Check if all checkboxes are selected

How do I check if all checkboxes with class="abc" are selected? 9 Answers 9 ...
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Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f

...ng from "File's Owner" under "Place Holders" to "view" under "Objects" and selecting the view outlet. – Nirma Aug 11 '11 at 14:49 ...
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How to deal with “java.lang.OutOfMemoryError: Java heap space” error?

...h performance code. Use local variables wherever possible. Make sure you select the correct object (EX: Selection between String, StringBuffer and StringBuilder) Use a good code system for your program(EX: Using static variables VS non static variables) Other stuff which could work on your code. T...
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Sorting an IList in C#

...rty, I believe you could sort as follows: from c in list orderby c.Engine select c; Edit: You do need to be quick to get answers in here. As I presented a slightly different syntax to the other answers, I will leave my answer - however, the other answers presented are equally valid. ...
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Xcode: Build Failed, but no error messages

... Actually, here select Show all issues, instead of "Show issues for active scheme only" and you're good. The new build system has a huge performance advantage over the old one with Swift projects. – Charlie Monroe ...