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What are copy elision and return value optimization?

... when the two objects would have been destroyed without the optimization.123 This elision of copy/move operations, called copy elision, is permitted in the following circumstances (which may be combined to eliminate multiple copies): — in a return statement in a function with a class re...
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jquery loop on Json data using $.each

... EDIT: try with this and describes what the result $.get('/Cms/GetPages/123', function(data) { alert(data); }); FOR EDIT 3: this corrects the problem, but not the idea to use "eval", you should see how are the response in '/Cms/GetPages/123'. $.get('/Cms/GetPages/123', function(data) { $....
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How do I return to an older version of our code in Subversion?

...nd the right revision number. Note down the good revision number (assuming 123 for examples below). Update to the latest revision: svn update Undo all the changes between the revision you want and the latest version: svn merge -r HEAD:123 . svn commit "Reverted to revision 123" (the same as Jon...
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Add a prefix to all Flask routes

..._ROOT config value to your prefix: app.config["APPLICATION_ROOT"] = "/abc/123" @app.route("/") def index(): return "The URL for this page is {}".format(url_for("index")) # Will return "The URL for this page is /abc/123/" Setting the APPLICATION_ROOT config value simply limit Flask's session...
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Fixed point vs Floating point number

...of precision, so a value of 100 means actually means 1.00, 101 means 1.01, 12345 means 123.45, etc. Floating point numbers are more general purpose because they can represent very small or very large numbers in the same way, but there is a small penalty in having to have extra storage for where the...
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How do I immediately execute an anonymous function in PHP?

... @yes123 nope. still have to use call_user_func – Gordon Oct 30 '12 at 22:41 2 ...
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Any way to modify Jasmine spies based on arguments?

...pi, 'get') .withArgs('abc').and.returnValue('Jane') .withArgs('123').and.returnValue(98765); }); }); For Jasmine versions earlier than 3.0 callFake is the right way to go, but you can simplify it using an object to hold the return values describe('my fn', function() { var params ...
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Convert NaN to 0 in javascript

...ber. This has the added benefit of converting things like numeric strings '123' to a number. The only unexpected thing may be if someone passes an Array that can successfully be converted to a number: +['123'] // 123 Here we have an Array that has a single member that is a numeric string. It wi...
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Remove not alphanumeric characters from string

...xample that captures every key I could find on the keyboard: var string = '123abcABC-_*(!@#$%^&*()_-={}[]:\"<>,.?/~`'; var stripped = string.replace(/[^A-Za-z0-9]/g, ''); console.log(stripped); Outputs: '123abcABC'. ...
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How Do I Convert an Integer to a String in Excel VBA?

...he shortest way without declaring the variable is with Type Hints : s$ = 123 ' s = "123" i% = "123" ' i = 123 This will not compile with Option Explicit. The types will not be Variant but String and Integer share ...