Check if Variable in array javascript
Short code for checking if a variable also exists inside an array is needed. Im thinking something like this:
var category='cars';
if (in_array(category, some_array)){
开发者_如何学Python do stuff!
}
Is there any such function in js?
Thanks
if (some_array.indexOf(category) >= 0) {
// do stuff
}
(Ref: https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/Array/indexOf)
There's no native "in_array"-function in JavaScript (as in PHP), check out this solution:
http://phpjs.org/functions/in_array:432
Also a search would have lead you here:
JavaScript equivalent of PHP's in_array()
if(some_array[category] !== undefined){
// it's there
}
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