大约有 45,000 项符合查询结果（耗时：0.0404秒） [XML]
Standardize data columns in R
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EDIT 3 (2020): Thanks to @mj_whales: the old solution is deprecated and now we need to use mutate_at.
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How to [recursively] Zip a directory in PHP?
... @Danjah: I've updated the code, should work for both *nix and Windows now.
– Alix Axel
Oct 18 '11 at 23:38
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Injecting a mock into an AngularJS service
...ck the functions on the service as needed using Jasmine's spyOn function.
Now, if the service itself is a function, and not an object that you can use spyOn with, there's another way to go about it. I needed to do this, and found something that works pretty well for me. See How do you mock Angular ...
Displaying better error message than “No JSON object could be decoded”
...ew error message format. I don’t have time to track exact releases right now however.
– Martijn Pieters♦
Mar 14 at 0:29
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UTF-8 byte[] to String
...ream to read the bytes of a UTF-8 encoded text file into a byte array. I know that I can use the following routine to convert the bytes to a string, but is there a more efficient/smarter way of doing this than just iterating through the bytes and converting each one?
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How do I get NuGet to install/update all the packages in the packages.config?
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This is the nuke option if you just need it to work RIGHT NOW.
– Chris
Nov 8 '13 at 17:53
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Mongoose query where value is not null
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the mongodb docs about it are here (now): docs.mongodb.org/manual/reference/operator/query The up-to-date doc about it, is here: mongoosejs.com/docs/api.html#query_Query-ne
– zeropaper
Jul 20 '14 at 7:52
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Broken references in Virtualenvs
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I deleted my entire virtualenv dir. now i cannot remove symlinks. Non of the solutions mentioned on this page work for me on mac. i still get same error "image not found . Abort trap: 6"
– Aseem
Jul 3 '18 at 7:24
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Regular expression to match URLs in Java
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The best way to do it now is:
android.util.Patterns.WEB_URL.matcher(linkUrl).matches();
EDIT: Code of Patterns from https://github.com/android/platform_frameworks_base/blob/master/core/java/android/util/Patterns.java :
/*
* Copyright (C) 2007...
Download File Using jQuery
...on.href = 'uploads/file.doc';
});
<a href="no-script.html">Download now!</a>
Even if there's no Javascript, at least this way the user will get some feedback.
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