大约有 13,922 项符合查询结果(耗时:0.0201秒) [XML]

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How to use JavaScript variables in jQuery selectors?

...nts via button clicks. I would opt for using data-attributes instead. For example <input id="bx" type="text"> <button type="button" data-target="#bx" data-method="hide">Hide some input</button> Then, in your JavaScript // using event delegation so no need to wrap it in .ready()...
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Finding ALL duplicate rows, including “elements with smaller subscripts”

... duplicated has a fromLast argument. The "Example" section of ?duplicated shows you how to use it. Just call duplicated twice, once with fromLast=FALSE and once with fromLast=TRUE and take the rows where either are TRUE. Some late Edit: You didn't provide a repro...
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How can I give eclipse more memory than 512M?

...as much memory as I'd like it to be able to use (between 2 and 4 gigs for example). Open eclipse.ini in the Eclipse installation directory. You should be able to change the memory sizes after -vmargs up to 1024 without a problem up to some maximum value that's dependent on your system. Here's that...
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Store query result in a variable using in PL/pgSQL

... SELECT INTO: select test_table.name into name from test_table where id = x; That will pull the name from test_table where id is your function's argument and leave it in the name variable. Don't leave out the table name prefix on test_table.name or you'll get complaints about an ambiguous referen...
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Get the closest number out of an array

...ordered but ok for small lists. Even without a binary search a loop could exit if the next number is further way. – Dominic Dec 19 '19 at 5:21 ...
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What is the difference between ng-app and data-ng-app?

...ly saying makes template valid HTML, or HTML Validator Compliant, without explaining what THOSE terms mean, either. I do not know for sure, but I'm guessing that these terms apply to HTML validation programs that scan your code for standards compliance - kind of like lint. They do not recognize ng...
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Regular expression to match standard 10 digit phone number

I want to write a regular expression for a standard US type phone number that supports the following formats: 20 Answers ...
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Concatenating two lists - difference between '+=' and extend()

...o (maybe more) ways to concatenate lists in Python: One way is to use the extend() method: 9 Answers ...
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What are the -Xms and -Xmx parameters when starting JVM?

Please explain the use of Xms and Xmx parameters in JVMs. What are the default values for them? 5 Answers ...
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How do I determine whether my calculation of pi is accurate?

...quentially. I tried the Taylor series method, but it proved to converge extremely slowly (when I compared my result with the online values after some time). Anyway, I am trying better algorithms. ...