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Most efficient way to remove special characters from string
...Regular expression: 294.4 ms.
Edit 2:
I added the distinction between A-Z and a-z in the code above. (I reran the performance test, and there is no noticable difference.)
Edit 3:
I tested the lookup+char[] solution, and it runs in about 13 ms.
The price to pay is, of course, the initialization of...
Iterate through object properties
...roperty simply checks to see if this is a property specific to this class, and not one inherited from the base class.
It's also possible to call hasOwnProperty through the object itself:
if (obj.hasOwnProperty(prop)) {
// do stuff
}
But this will fail if the object has an unrelated field w...
How to create Gmail filter searching for text only at start of subject line?
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Regex is not on the list of search features, and it was on (more or less, as Better message search functionality (i.e. Wildcard and partial word search)) the list of pre-canned feature requests, so the answer is "you cannot do this via the Gmail web UI" :-(
There are ...
What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
What does ArrayIndexOutOfBoundsException mean and how do I get rid of it?
25 Answers
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The imported project “C:\Microsoft.CSharp.targets” was not found
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
and change it to
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
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Eclipse error: 'Failed to create the Java Virtual Machine'
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This will only work if the problem was not enough memory and if you lower the values in eclipse.ini. Raising them will only make this issue more probable to occur.
– Stijn de Witt
Feb 18 '13 at 14:17
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Rails 3: Get Random Record
So, I've found several examples for finding a random record in Rails 2 -- the preferred method seems to be:
14 Answers
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How to tell whether a point is to the right or left side of a line
...o separate them into 2 distinct sets. To do this, I choose two points ( a and b ) and draw an imaginary line between them. Now I want to have all points that are left from this line in one set and those that are right from this line in the other set.
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What is the most efficient string concatenation method in python?
... Guido. Although it is worth remembering also that this is an old article and it predates the existence of things like ''.join (although I guess string.joinfields is more-or-less the same)
On the strength of that, the array module may be fastest if you can shoehorn your problem into it. But ''.jo...
HTML anchor link - href and onclick both?
I want to author an anchor tag that executes some JavaScript and then proceeds to go wherever the href was taking it. Invoking a function that executes my JavaScript and then sets window.location or top.location to the href location doesn't work for me.
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