大约有 40,000 项符合查询结果(耗时:0.0609秒) [XML]

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How do I pass the this context to a function?

... Javascripts .call() and .apply() methods allow you to set the context for a function. var myfunc = function(){ alert(this.name); }; var obj_a = { name: "FOO" }; var obj_b = { name: "BAR!!" }; Now you can call: myfunc.ca...
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How to check if bootstrap modal is open, so i can use jquery validate

... @GregPettit mentions, one can use: ($("element").data('bs.modal') || {})._isShown // Bootstrap 4 ($("element").data('bs.modal') || {}).isShown // Bootstrap <= 3 as discussed in Twitter Bootstrap Modal - IsShown. When the modal is not yet opened, .data('bs.modal') returns undefined, he...
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Mysql - How to quit/exit from stored procedure

...e was no error, then use the accepted answer posted by @piotrm. Most typically, however, you will be bailing due to an error condition (especially in a SQL procedure). As of MySQL v5.5 you can throw an exception. Negating exception handlers, etc. that will achieve the same result, but in a clean...
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Finding median of list in Python

...mpleteness, @musiphil: only in python 2, and only if you haven't done from __future__ import division. – Chris L. Barnes Nov 6 '17 at 19:27 add a comment  |...
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Is it possible to use 'else' in a list comprehension? [duplicate]

..., 2, 3] So for your example, table = ''.join(chr(index) if index in ords_to_keep else replace_with for index in xrange(15)) share | improve this answer | ...
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What REST PUT/POST/DELETE calls should return by a convention?

... By the RFC7231 it does not matter and may be empty How we implement json api standard based solution in the project: post/put: outputs object attributes as in get (field filter/relations applies the same) delete: data only contains null (for its a representation of missing object) status for st...
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How do I sort a vector of pairs based on the second element of the pair?

...response to your edits to your question, here's some thoughts ... if you really wanna be creative and be able to reuse this concept a lot, just make a template: template <class T1, class T2, class Pred = std::less<T2> > struct sort_pair_second { bool operator()(const std::pair<T1...
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Getting the max value of an enum

...m MyEnum { ValueOne, ValueTwo } VB: Public Function GetMaxValue _ (Of TEnum As {IComparable, IConvertible, IFormattable})() As TEnum Dim type = GetType(TEnum) If Not type.IsSubclassOf(GetType([Enum])) Then _ Throw New InvalidCastException _ ("Cannot cast ...
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What does Bump Version stand for?

... Semver is mostly for libs and APIs. It doesn't make sense everywhere. – Marc.2377 Nov 20 '19 at 1:03 add a comment ...
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ReSharper - force curly braces around single line

...t to add the braces in the single-line scenario. And I had to set that in all six dropdowns under "Force Braces" to catch all the scenarios: What I was really hoping for was to be able to set up ReSharper to do a yellow warning or red error when the rule was violated, but I haven't found a way t...