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Good Hash Function for Strings
...y to be unique. As for why, a quick search on google reveals this article: computinglife.wordpress.com/2008/11/20/… explaining why 31 was used for Java string hashing. There is no mathematical proof given, but it does explain the general concept as to why primes work better.
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How to determine if object is in array [duplicate]
...t you're looking for isn't in the list, but rather a different object that compares as deeply-equal. In that case, using lodash's isEqual() would be preferable to abusing serialization. (In fact, using lodash, this whole solution becomes a one-liner, combining _.some and _.isEqual: _.some(list, v =&...
How to Compare Flags in C#?
... informations on the performance issue, look at this answer: stackoverflow.com/q/7368652/200443
– Maxence
Jul 6 '15 at 14:46
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What's the bad magic number error?
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The magic number comes from UNIX-type systems where the first few bytes of a file held a marker indicating the file type.
Python puts a similar marker into its pyc files when it creates them.
Then the python interpreter makes sure this numb...
Consistency of hashCode() on a Java string
The hashCode value of a Java String is computed as ( String.hashCode() ):
8 Answers
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What is the correct way to check for string equality in JavaScript?
... results due to the type-coercion internally, so using === is always the recommended approach.
For insight into this, and other "good vs. bad" parts of Javascript read up on Mr. Douglas Crockford and his work. There's a great Google Tech Talk where he summarizes lots of good info: http://www.youtu...
Get the current git hash in a Python script
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The git describe command is a good way of creating a human-presentable "version number" of the code. From the examples in the documentation:
With something like git.git current tree, I get:
[torvalds@g5 git]$ git describe parent
v1.0.4-14-g2...
Why does C# forbid generic attribute types?
This causes a compile-time exception:
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change type of input field with jQuery
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@Michael, I'd recommend against altering jQuery directly. Besides that it creates a conflict liability going forward, that check is probably in place for a reason. If you don't need to worry about IE support, you could instead implement a jQ...
Why would I prefer using vector to deque
... edited May 23 '17 at 11:47
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answered Mar 17 '11 at 21:03
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