大约有 22,000 项符合查询结果(耗时:0.0306秒) [XML]

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if a ngSrc path resolves to a 404, is there a way to fallback to a default?

... Works well if the url is broken (404), but if it's an empty string ng-src silently swallows the error. – Stephen Patten Sep 18 '13 at 18:43 ...
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What is the use of the JavaScript 'bind' method?

...ch prints out: OK clicked undefined clicked OK clicked You can also add extra parameters after the 1st (this) parameter and bind will pass in those values to the original function. Any additional parameters you later pass to the bound function will be passed in after the bound parameters: // Exa...
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Why can tuples contain mutable items?

...der one roof. For example, s = ('www.python.org', 80) brings together a string and a number so that the host/port pair can be passed around as a socket, a composite object. Viewed in that light, it is perfectly reasonable to have mutable components. Immutability goes hand-in-hand with another pr...
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RGB to hex and hex to RGB

...required zero padding: function componentToHex(c) { var hex = c.toString(16); return hex.length == 1 ? "0" + hex : hex; } function rgbToHex(r, g, b) { return "#" + componentToHex(r) + componentToHex(g) + componentToHex(b); } alert(rgbToHex(0, 51, 255)); // #0033ff Conve...
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File to byte[] in Java

... Thanks :) I also needed this one: String text = new String(Files.readAllBytes(new File("/path/to/file").toPath())); which is originally from stackoverflow.com/a/26888713/1257959 – cgl Jan 8 '16 at 20:25 ...
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How to bind an enum to a combobox control in WPF?

...re shown as is. All examples I have seen tries to add nice looking display strings but I don't want that complexity. 18 Ans...
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Using C++ library in C code

... with extern "C": extern "C" int foo(char *bar) { return realFoo(std::string(bar)); } Then, you will call foo() from your C module, which will pass the call on to the realFoo() function which is implemented in C++. If you need to expose a full C++ class with data members and methods, then yo...
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What does a tilde do when it precedes an expression?

... also less relevant now that JavaScript has Array.prototype.includes() and String.prototype.includes(). These return a boolean value. If your target platform(s) support it, you should prefer this for testing for the existence of a value in a string or array. ...
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Reference: mod_rewrite, URL rewriting and “pretty links” explained

... rule. In this example: The first set of brackets - ([0-9]+) - matches a string with a minimum of 1 character in length and with only numeric values (i.e. 0-9). This can be referenced with $1 in the right hand side of the rule The second set of parentheses matches a string with a minimum of 1 char...
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What does “coalgebra” mean in the context of programming?

...y and setPosition function: class C private x, y : Int _name : String public name : String position : (Int, Int) setPosition : (Int, Int) → C We need two parts to represent this class. First, we need to represent the internal state of the object; in this case ...