大约有 30,000 项符合查询结果（耗时：0.0598秒） [XML]
How do I use su to execute the rest of the bash script as that user?
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I did this - but it still asked me for a password.
– Hippyjim
Oct 19 '13 at 16:30
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How to go back to lines edited before the last one in Vim?
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@Bob - are you still alive? please can you make judgement call on correct answer. This answer has enough votes to warrant serious contention ;)
– arcseldon
Dec 22 '15 at 13:17
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String.replaceAll without RegEx
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This doesn't just replace the first? Weird they called it "replaceAll" instead of "replaceRegex".
– Magic Octopus Urn
Mar 28 '18 at 20:13
6
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C++ convert vector to vector
... if you don't specify the size beforehand, then it will be resized automatically whenever the capacity is exceeded (which copies all the elements over and over again). Okay, this is amortized linear time, but I bet that's still a lot slower than a single 0-initialization. Am I missing something abou...
How to get all child inputs of a div element (jQuery)
...lt;textarea>, <button> and <select> elements. Thanks Nick, didn't know this myself and corrected my post accordingly. Left both options, because I guess the OP wasn't aware of that either and -technically- asked for inputs... :-)
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How to set default value to the input[type=“date”] [duplicate]
I have tried ( JSFiddle ):
14 Answers
14
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Python's json module, converts int dictionary keys to strings
... which implement a __hash__ method. (The Lua docs suggest that it automatically uses the object's ID as a hash/key even for mutable objects and relies on string interning to ensure that equivalent strings map to the same objects).
In Perl, Javascript, awk and many other languages the keys for has...
Best way to create an empty map in Java
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You'll have to use the latter sometimes when the compiler cannot automatically figure out what kind of Map is needed (this is called type inference). For example, consider a method declared like this:
public void foobar(Map<String, String> map){ ... }
When passing the empty Map direc...
“unrecognized selector sent to instance” error in Objective-C
...I was getting the error because I forgot to put a colon after the selector callback, thus causing a calling sequence mismatch. With the colon, I can keep the sender argument.
– user1886876
May 20 '13 at 22:34
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HashMap with multiple values under the same key
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No, not just as a HashMap. You'd basically need a HashMap from a key to a collection of values.
If you're happy to use external libraries, Guava has exactly this concept in Multimap with implementations such as ArrayListMultimap and HashMultimap.
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