大约有 48,000 项符合查询结果(耗时:0.0374秒) [XML]

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How to include PHP files that require an absolute path?

... just a question, why realpath() for $_SERVER["DOCUMENT_ROOT"]? This shall not output always the canonical path? – João Pimentel Ferreira Nov 15 '15 at 0:30 add a comment...
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__proto__ VS. prototype in JavaScript

...x = x; this.y = y; } var myPoint = new Point(); // the following are all true myPoint.__proto__ == Point.prototype myPoint.__proto__.__proto__ == Object.prototype myPoint instanceof Point; myPoint instanceof Object; Here Point is a constructor function, it builds an object (data structure) p...
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std::function and std::bind: what are they, and when should they be used?

...nd to get g: auto g = bind(f, _1, 4, _2); This is more concise than actually writing a functor class to do it. There are further examples in the article you link to. You generally use it when you need to pass a functor to some algorithm. You have a function or functor that almost does the job yo...
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

... can be used to detect if a variable has been already initialized. Additionally and more ideal is the solution of empty() since it does not generate a warning or error message if the variable is not initialized. From PHP documentation: No warning is generated if the variable does not exist. T...
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How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth

...s of two numbers: the modulus (e.g. a 2,048 bit number) the exponent (usually 65,537) Using your RSA public key as an example, the two numbers are: Modulus: 297,056,429,939,040,947,991,047,334,197,581,225,628,107,021,573,849,359,042,679,698,093,131,908,015,712,695,688,944,173,317,630,555,849,7...
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How can I maintain fragment state when added to the back stack?

... back stack. However, when I return to FragmentA (by pressing back), a totally new FragmentA is created and the state it was in is lost. I get the feeling I'm after the same thing as this question, but I've included a complete code sample to help root out the issue: ...
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Is there a replacement for unistd.h for Windows (Visual C)?

...nsole program written for Unix to the Windows platform ( Visual C++ 8.0 ). All the source files include "unistd.h", which doesn't exist. Removing it, I get complaints about misssing prototypes for 'srandom', 'random', and 'getopt'. I know I can replace the random functions, and I'm pretty sure I ca...
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How do you write tests for the argparse portion of a python module? [closed]

...turn parser.parse_args(args) Then in your main function you should just call it with: parser = parse_args(sys.argv[1:]) (where the first element of sys.argv that represents the script name is removed to not send it as an additional switch during CLI operation.) In your tests, you can then call...
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Get hours difference between two dates in Moment Js

... How does this have so many votes when all it does is make the OP aware of a typo that most IDE's would reveal to you anyway ( imgur.com/a/ikyayIL ). SO rep is first in best dressed while others work for scraps smh. Oh you fixed a typo.. here's 4.7k rep ...
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What is a “callable”?

...t's clear what a metaclass is , there is an associated concept that I use all the time without knowing what it really means. ...