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Deleting elements from std::set while iterating
...fix, hence it passes the old position to erase, but first jumps to a newer one due to the operator.
2015.10.27 update:
C++11 has resolved the defect. iterator erase (const_iterator position); return an iterator to the element that follows the last element removed (or set::end, if the last element w...
.prop('checked',false) or .removeAttr('checked')?
...r attributes which have underlying boolean properties (of which checked is one), removeAttr automatically sets the underlying property to false. (Note that this is among the backwards-compatibility "fixes" added in jQuery 1.6.1).
So, either will work... but the second example you gave (using prop) i...
Convert NSArray to NSString in Objective-C
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NSString * result = [[array valueForKey:@"description"] componentsJoinedByString:@""];
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Extracting the last n characters from a ruby string
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Here you have a one liner, you can put a number greater than the size of the string:
"123".split(//).last(5).to_s
For ruby 1.9+
"123".split(//).last(5).join("").to_s
For ruby 2.0+, join returns a string
"123".split(//).last(5).join
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Load and execution sequence of a web page?
I have done some web based projects, but I don't think too much about the load and execution sequence of an ordinary web page. But now I need to know detail. It's hard to find answers from Google or SO, so I created this question.
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Select random row from a sqlite table
...t perfect : the distribution of probability is higher on the last row (the one with the highest rowid), but if you often add stuff to the table, it will become a moving target and the distribution of probabilities should be much better.
Yet another solution, if you often select random stuff from a ...
How to use enums as flags in C++?
...swered Sep 19 '09 at 12:37
eidoloneidolon
2,71722 gold badges1313 silver badges55 bronze badges
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How do I get the last character of a string?
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Question asks for a character - this returns a one character long string. Should use charAt() not substring()
– Andrew
Mar 31 at 13:19
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$apply already in progress error
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This answer is much more helpful than the one above. I need a solution, not to be admonished for something that might be beyond my control. We have a mixture of angular and legacy code, and they have to interact somehow. It's too expensive to just rewrite all the leg...
Write a program that will surely go into deadlock [closed]
...l variable and three statements, and yet it deadlocks with 100% certainty. One would be hard-pressed to come up with a simpler program that deadlocks with certainty.
Exercise to the reader #1: explain how this deadlocks. (An answer is in the comments.)
Exercise to the reader #2: demonstrate the sa...