大约有 2,945 项符合查询结果(耗时:0.0189秒) [XML]

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JPA or JDBC, how are they different?

... true DataNucleus.. there are even ones for excel, etc - the original questions was JDBC/JPA so I rightly or wrongly assumed he was interested in relational stores. – Mark D Sep 30 '12 at 12:16 ...
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Switch on ranges of integers in JavaScript [duplicate]

... @Superman you make an excellent point. I think it is important for everyone to remember that the code is what we are talking about, not the people. If someone points out a problem with some code I write, I learn something and write better code nex...
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How can I reliably get an object's address when operator& is overloaded?

... Edit: the various overloads have a different function, see @Matthieu M. excellent answer. Well, I'm no longer sure of this either; I should further investigate that code, but now I'm cooking dinner :) , I'll have a look at it later. ...
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Adding parameter to ng-click function inside ng-repeat doesn't seem to work

... Above answers are excellent. You can look at the following full code example so that you could exactly know how to use var app = angular.module('hyperCrudApp', []); app.controller('usersCtrl', function($scope, $http) { $htt...
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How to convert a data frame column to numeric type?

...mpossible to turn err <- c(1, "b", 3, 4, "e") into a numeric vector? In excel, there's a button that allows you to "convert to number". making whatever value the column a numeric. I am trying to mimic that in r. – flightless13wings Mar 29 '18 at 22:59 ...
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Is 'float a = 3.0;' a correct statement?

....1f is not equivalent. I am just going to quote the comment because it was excellent and a summary probably would not do it justice: For example, if f was equal to 100000224 (which is exactly representable as a float), multiplying it by one tenth should yield a result which rounds down to 10...
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Insert a commit before the root commit in Git?

... This is excellent. It'd be nice if this could be what a git rebase -i --root did internally. – aredridel Jul 8 '12 at 2:39 ...
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Transactions in .net

... Again Marc, another excellent explanation. When you say 'expected nesting is supported' is that for transaction blocks defined within the methods (CallAMethodThatDoesSomeWork() for example) themselves? Or with the transactionscope defined outsid...
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Groovy: what's the purpose of “def” in “def x = 0”?

... Ted's answer is excellent for scripts; Ben's answer is standard for classes. As Ben says, think of it as "Object" -- but it is much cooler in that it does not constrain you to the Object methods. This has neat implications with respect to ...
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Django: How to completely uninstall a Django app?

... Excellent answer, just one addition that I'd make: pip uninstall package-name is your friend, much nicer than trawling around your PYTHONPATH. – DaveJ Jul 26 '10 at 12:23 ...