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How do I check in JavaScript if a value exists at a certain array index?

...y, arrays in JavaScript contain array.length elements, starting with array[0] up until array[array.length - 1]. An array element with index i is defined to be part of the array if i is between 0 and array.length - 1 inclusive. If i is not in this range it's not in the array. So by concept, arrays...
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Difference between HTML “overflow : auto” and “overflow : scroll”

...l. – Johan Davidsson Mar 26 '13 at 10:50 1 There seems to be more difference than that, overlow: ...
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What's the difference between deadlock and livelock?

... 402 Taken from http://en.wikipedia.org/wiki/Deadlock: In concurrent computing, a deadlock is a sta...
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handlerbars.js check if list is empty

... 209 The "each" tag can take an "else" section too. So the simplest form is: {{#each items}} // ren...
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Guaranteed lifetime of temporary in C++?

... 110 The destructor for that sort of temporaries is called at the end of the full-expression. That's ...
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Where does Xcode 4 store Scheme Data?

... answered Mar 14 '11 at 20:39 Cory ImdiekeCory Imdieke 12k88 gold badges3232 silver badges4646 bronze badges ...
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The simplest possible JavaScript countdown timer? [closed]

... 510 I have two demos, one with jQuery and one without. Neither use date functions and are about as s...
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SQL order string as number

...h forces a conversion to number select col from yourtable order by col + 0 BTW MySQL converts strings from left to right. Examples: string value | integer value after conversion --------------+-------------------------------- '1' | 1 'ABC' | 0 /* the string does not cont...
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Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])

...ypal singh 65.1k1919 gold badges9191 silver badges130130 bronze badges 10 ...
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How do I get the function name inside a function in PHP?

... totymedli 20.9k1818 gold badges102102 silver badges135135 bronze badges answered Jun 17 '09 at 10:33 Silfverstro...