大约有 40,000 项符合查询结果(耗时:0.0512秒) [XML]

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“Inner exception” (with traceback) in Python?

...recently started programming in Python. When an exception is thrown I typically want to wrap it in another exception that adds more information, while still showing the full stack trace. It's quite easy in C#, but how do I do it in Python? ...
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Jasmine JavaScript Testing - toBe vs toEqual

...y word for it; see the source code for toBe. But b and c represent functionally equivalent objects; they both look like { foo: { bar: 'baz' } } Wouldn't it be great if we could say that b and c are "equal" even if they don't represent the same object? Enter toEqual, which checks "deep equality" (i....
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What is the reason for having '//' in Python? [duplicate]

... I actually like this style better... I can remember in atleast one language I've used (VB?) the differentiating factor was / vs \ ... but I could never remember which was which! – Matthew Scharley ...
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What is the difference between ndarray and array in numpy?

...r are used. If buffer is an object exposing the buffer interface, then all keywords are interpreted. The example below gives a random array because we didn't assign buffer value: np.ndarray(shape=(2,2), dtype=float, order='F', buffer=None) array([[ -1.13698227e+002, 4.25087011e-303], ...
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Why use apparently meaningless do-while and if-else statements in macros?

...into if (corge) f(corge); g(corge); else gralt(); which is syntactically incorrect, as the else is no longer associated with the if. It doesn't help to wrap things in curly braces within the macro, because a semicolon after the braces is syntactically incorrect. if (corge) {f(corge); g(co...
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Max length UITextField

... that can be entered into a UITextField using swift? , I saw that if I use all 10 characters, I can't erase the character too. ...
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How can I initialize an ArrayList with all zeroes in Java?

... That is much better than my solution (even my updated one that actually works hehehe). I would recommend not making a new ArrayList out of it though, and instead simply program to List. That's a decision left to the OP, of course. – corsiKa Apr 8 '11 at...
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jQuery - Get Width of Element when Not Visible (Display: None)

... @Tim Banks very nice! I actually wrote a similar extension. What i've been noticing is very strange behavior in Firefox, width() returns 0, for your and my plugin both. And on top of that it never factors in padding. jsfiddle.net/67cgB. I'm having the ...
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jQuery.active function

... This is a variable jQuery uses internally, but had no reason to hide, so it's there to use. Just a heads up, it becomes jquery.ajax.active next release. There's no documentation because it's exposed but not in the official API, lots of things are like this act...
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How to debug JavaScript / jQuery event bindings with Firebug or similar tools?

...ked!') }" }) See jQuery.fn.data (where jQuery stores your handler internally). jQuery 1.8.x var clickEvents = $._data($('#foo')[0], "events").click; jQuery.each(clickEvents, function(key, handlerObj) { console.log(handlerObj.handler) // prints "function() { console.log('clicked!') }" }) ...