大约有 43,000 项符合查询结果(耗时:0.0663秒) [XML]

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How do I print debug messages in the Google Chrome JavaScript Console?

... Improving on Andru's idea, you can write a script which creates console functions if they don't exist: if (!window.console) console = {}; console.log = console.log || function(){}; console.warn = console.warn || function(){}; console.err...
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Undefined reference to vtable

...nswered Jun 17 '10 at 20:06 Alexandre HamezAlexandre Hamez 6,34322 gold badges2525 silver badges3434 bronze badges ...
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setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded

...ates one of your constraints, you should remove the constraint immediately and call setNeedsUpdateConstraints. In fact, that’s the only case where you should have to trigger a constraint update pass. In addition, in my experience, I have never had to invalidate constraints, and not set the setNe...
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Copying PostgreSQL database to another server

...o a remote host. With a big database or a slow connection, dumping a file and transfering the file compressed may be faster. As Kornel said there is no need to dump to a intermediate file, if you want to work compressed you can use a compressed tunnel pg_dump -C dbname | bzip2 | ssh remoteuser@...
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What are all the common undefined behaviours that a C++ programmer should know about? [closed]

... the number (e.g. int64_t i = 1; i <<= 72 is undefined) Types, Cast and Const Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast) Using an automatic variable before it has been definitely assigned (e.g., int i; i++; cout <...
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In PHP, can you instantiate an object and call a method on the same line?

...atures in PHP 5.4: http://php.net/manual/en/migration54.new-features.php And the relevant part from the new features list: Class member access on instantiation has been added, e.g. (new Foo)->bar(). share ...
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Why do I get a warning icon when I add a reference to an MEF plugin project?

...test the core class of a plugin by directly referencing the plugin project and instantiating the plugin class. When I create a test Console App project and add a project reference to the plugin project, I get a warning icon (yellow triangle with exclamation mark) next to the reference in the Referen...
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How to loop over files in directory and change path and add suffix to filename

...t files, or all files in /Data? Here's an answer, assuming /Data/data1.txt and .txt files only: #!/bin/bash for filename in /Data/*.txt; do for ((i=0; i<=3; i++)); do ./MyProgram.exe "$filename" "Logs/$(basename "$filename" .txt)_Log$i.txt" done done Notes: /Data/*.txt expand...
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Create instance of generic type in Java?

... And how do you call the createContents() method? – Alexis Dufrenoy Aug 11 '12 at 21:36 ...
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Example images for code and mark-up Q&As [closed]

... in this answer. It includes a Java based interface that defines the URLs and makes them easy to access. Details: 32x32 pixel PNG (4 colors x 5 shapes) with partial transparency (along the edges). Categories: png icons       Sprite...