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What are all the common ways to read a file in Ruby?
...asuring in gigabytes, and your host is freezing up as it tries to read and allocate memory.
Line-by-line I/O is very fast, and almost always as effective as slurping. It's surprisingly fast actually.
I like to use:
IO.foreach("testfile") {|x| print "GOT ", x }
or
File.foreach('testfile') {|x|...
Shiro vs. SpringSecurity [closed]
...few words, what I did was implement my own AuthorizingRealm, AuthenticationToken, and AuthenticationFilter. And all the necessary filters and plumbing. But what I do is not "normal" sso, it is based on a token that is stored in the DB that is common between the 2 apps. So I am not using a separate S...
Can enums be subclassed to add new elements?
...e_StatusGroup.START),
SUCCESS (State_StatusGroup.FINISH),
FAIL_TOKEN_TIMEOUT (State_StatusGroup.FAIL,
State_StatusGroup.FINISH),
FAIL_NOT_COMPLETE (State_StatusGroup.FAIL,
State_StatusGroup.STEP),
FAIL_UNKNOWN (State_StatusGr...
Javascript swap array elements
...sion is likely inefficient as it is generating a new and unnecessary array allocation.
– Chris_F
Jul 12 at 23:53
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How to count string occurrence in string?
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@JonnyLin it creates unnecessary allocations you immediately throw away when alternatives do not - potentially very large ones depending on the data.
– Nick Craver♦
Jul 7 '15 at 0:16
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How do I instantiate a Queue object in java?
...s a queue". It's due to CPU-cache-friendly data locality and less frequent allocations.
– Vadzim
Sep 30 '16 at 18:13
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Need to understand the usage of SemaphoreSlim
...sk that will be completed when that thread has been given "access" to that token. await-ing that task lets the program continue execution when it is "allowed" to do so. Having an asynchronous version, rather than calling Wait, is important both to ensure that the method stays asynchronous, rather ...
How do I make UILabel display outlined text?
...e in Objective-C this will be: label.attributedText = [[NSAttributedString alloc] initWithString:@"String" attributes:@{ NSStrokeColorAttributeName : [UIColor blackColor], NSForegroundColorAttributeName : [UIColor whiteColor], NSStrokeWidthAttributeName : @-1.0 }];
– Leszek Sza...
Android Webview - Completely Clear the Cache
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Need to allocate the object? WebView obj= new WebView(this); obj.clearCache(true); Anyway, very good for me, upvoted!
– Giorgio Barchiesi
Nov 6 '19 at 7:03
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How do I apply the for-each loop to every character in a String?
...cost penalty.
From the documentation:
[toCharArray() returns] a newly allocated character array whose length is the length of this string and whose contents are initialized to contain the character sequence represented by this string.
There are more verbose ways of iterating over characters i...