大约有 36,010 项符合查询结果(耗时:0.0469秒) [XML]

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What is the best comment in source code you have ever encountered? [closed]

...e releasing the code). Here's one I'm particulary fond of, placed far, far down a poorly-designed 'God Object': /** * For the brave souls who get this far: You are the chosen ones, * the valiant knights of programming who toil away, without rest, * fixing our most awful code. To you, true saviors, ...
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Overriding a JavaScript function while referencing the original

... You could do something like this: var a = (function() { var original_a = a; if (condition) { return function() { new_code(); original_a(); } } else { return function() { ...
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Save An Image To Application Documents Folder From UIView On IOS

... It's all good, man. Don't harm yourself or others. You probably don't want to store these images in Core Data, since that can impact performance if the data set grows too large. Better to write the images to files. NSData *pngData = UIImagePNG...
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fatal: The current branch master has no upstream branch

...the push, but, independently of that push issue (which I explained in "Why do I need to explicitly push a new branch?": git push -u origin master or git push -u origin --all), you need now to resolve the authentication issue. That depends on your url (ssh as in 'git@github.com/yourRepo, or https as...
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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()

... System.currentTimeMillis() is obviously the most efficient since it does not even create an object, but new Date() is really just a thin wrapper about a long, so it is not far behind. Calendar, on the other hand, is relatively slow and very complex, since it has to deal with the considerably ...
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Why should the “PIMPL” idiom be used? [duplicate]

...t be allowed such an access without a friend declaration. Because you then don't mix responsibilities: one class implements, one class forwards. share | improve this answer | ...
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How do I get a string format of the current date time, in python?

...aw value as {}, use formatting to obtain the correct date format. https://docs.python.org/3/library/string.html#formatexamples share | improve this answer | follow ...
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What does [object Object] mean?

...bject Object]". As you are dealing with jQuery objects, you might want to do alert(whichIsVisible()[0].id); to print the element's ID. As mentioned in the comments, you should use the tools included in browsers like Firefox or Chrome to introspect objects by doing console.log(whichIsVisible()) ...
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When do I use fabs and when is it sufficient to use std::abs?

...different when using math.h . But when I use just cmath and std::abs , do I have to use std::fabs or fabs ? Or isn't this defined? ...
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git reset --hard HEAD leaves untracked files behind

... My common command is git clean -qfdx here. Remove everything and do it silently. – aragaer May 25 '13 at 17:51 3 ...