大约有 36,010 项符合查询结果(耗时:0.0447秒) [XML]

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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]

...This is because ins1 and ins2 share the same calc() function. In order to do this with public methods created during construction, you'd have to assign the new method to each instance that has been created, which is an awkward task. This is because ins1 and ins2 would have their own, individually ...
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How to loop through an associative array and get the key? [duplicate]

... You can do: foreach ($arr as $key => $value) { echo $key; } As described in PHP docs. share | improve this answer |...
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Difference between viewDidLoad and viewDidAppear

...es visible again). This is where you want to perform any layout actions or do any drawing in the UI - for example, presenting a modal view controller. However, anything you do here should be repeatable. It's best not to retain things here, or else you'll get memory leaks if you don't release them wh...
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github locks up mac terminal when using pull command

I'm in the process of learning github on mac (command-line) and whenever I do git pull origin master i get this 8 Answers...
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Can a foreign key be NULL and/or duplicate?

...FK is by definition. Null by definition is not a value. Null means that we do not yet know what the value is. Let me give you a real life example. Suppose you have a database that stores sales proposals. Suppose further that each proposal only has one sales person assigned and one client. So your ...
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Release generating .pdb files, why?

Why does Visual Studio 2005 generate the .pdb files when compiling in release? I won't be debugging a release build, so why are they generated? ...
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how to make a whole row in a table clickable as a link?

I'm using Bootstrap and the following doesn't work: 26 Answers 26 ...
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How to check if running as root in a bash script

... It seems that good permissions and having this is a double layer of security – Kolob Canyon Nov 15 '16 at 20:02 ...
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Real escape string and PDO [duplicate]

I'm using PDO after migrating away from the mysql library. What do I use in place of the old real_escape_string function? ...
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How to define servlet filter order of execution using annotations in WAR

...it's sufficient to annotate all filters with just a filterName so that you don't need the <filter> definition, but just a <filter-mapping> definition in the desired order. For example, @WebFilter(filterName="filter1") public class Filter1 implements Filter {} @WebFilter(filterName="fi...