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Why does Java's hashCode() in String use 31 as a multiplier?
... continual mentions on stackoverflow):
The value 31 was chosen because it is an odd prime. If it were even and the multiplication overflowed, information would be lost, as multiplication by 2 is equivalent to shifting. The advantage of using a prime is less clear, but it is traditional. A nice p...
Options for HTML scraping? [closed]
...follow
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edited Mar 4 '14 at 9:56
community wiki
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Detect backspace in empty UITextField
...when the Backspace / Delete key is pressed in the iPhone keyboard on a UITextField that is empty? I want to know when Backspace is pressed only if the UITextField is empty.
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How to run a single test with Mocha?
...cript regex as <pattern>. For instance, if we have test/mytest.js:
it('logs a', function(done) {
console.log('a');
done();
});
it('logs b', function(done) {
console.log('b');
done();
});
Then:
$ mocha -g 'logs a'
To run a single test. Note that this greps across the names of al...
Limit File Search Scope in Sublime Text 2
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Add and edit this in your ~/Library/Application Support/Sublime Text 2/Packages/User/Preferences.sublime-settings file.
// These files will still show up in the side bar, but won't be included in
// Goto Anything or Find in Files
"bin...
How to avoid “if” chains?
...uld evaluate only if the previous one succeeded (this is called short circuit evaluation)
executeThisFunctionInAnyCase() will be executed in any case
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What exactly is Type Coercion in Javascript?
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How can I put this on a practical situation? Shouldn't I always use === when I want to compare if a value is equal to another?
– gespinha
Nov 11 '13 at 21:04
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load scripts asynchronously
...esult I have several .js and .css files. I need to create a loader for my site because it takes some time to load. it will be nice if I can display the loader before importing all the:
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What is the difference between using IDisposable vs a destructor in C#?
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A finalizer (aka destructor) is part of garbage collection (GC) - it is indeterminate when (or even if) this happens, as GC mainly happens as a result of memory pressure (i.e. need more space). Finalizers are usually only used for cleaning up unmanaged resources, since managed resources wil...
How can I multiply all items in a list together with Python?
I need to write a function that takes
a list of numbers and multiplies them together. Example:
[1,2,3,4,5,6] will give me 1*2*3*4*5*6 . I could really use your help.
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