大约有 44,978 项符合查询结果(耗时:0.0707秒) [XML]

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How can I convert a string to boolean in JavaScript?

... Do: var isTrueSet = (myValue == 'true'); You could make it stricter by using the identity operator (===), which doesn't make any implicit type conversions when the compared variables have different types, instead of the equality operator (==). var isTrueSet = (myValue === 'true')...
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How to do a logical OR operation in shell scripting

I am trying to do a simple condition check, but it doesn't seem to work. 8 Answers 8 ...
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How to extract filename.tar.gz file

...SIX tar archive, the archive is a tar, not a GZip archive. Unpack a tar without the z, it is for gzipped (compressed), only: mv filename.tar.gz filename.tar # optional tar xvf filename.tar Or try a generic Unpacker like unp (https://packages.qa.debian.org/u/unp.html), a script for unpacking a w...
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How can I check if a value is a json object?

...type "object", if the string was JSON, so you only have to check the type with typeof var response=jQuery.parseJSON('response from server'); if(typeof response =='object') { // It is JSON } else { if(response ===false) { // the response was a string "false", parseJSON will convert it to ...
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Is Task.Result the same as .GetAwaiter.GetResult()?

...sult will throw an AggregateException. However, what's the point of using either of those when it's async? The 100x better option is to use await. Also, you're not meant to use GetResult(). It's meant to be for compiler use only, not for you. But if you don't want the annoying AggregateException, u...
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Overriding !important style

Title pretty much sums it up. 12 Answers 12 ...
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Is Fortran easier to optimize than C for heavy calculations?

...an be faster then C for heavy calculations. Is that really true? I must admit that I hardly know Fortran, but the Fortran code I have seen so far did not show that the language has features that C doesn't have. ...
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My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())

...at is known as the "most vexing parse", which is classically demonstrated with a line such as 5 Answers ...
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iPad Safari scrolling causes HTML elements to disappear and reappear with a delay

...he browser to use hardware acceleration more effectively. You can do this with an empty 3d transform: -webkit-transform: translate3d(0,0,0) Particularly, you'll need this on child elements that have a position:relative; declaration (or, just go all out and do it to all child elements). Not a gua...
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simple explanation PHP OOP vs Procedural?

... a "simple explanation" which suggests: You want a no-nonsense overview without jargon You want something that will help you learn from the beginning You have discovered that no two people ever answer the question the same way, and it's confusing. That's the reason you are here asking for a simple...