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24

How to check if value exists in this JavaScript array?

rated 0 times [ 28] [ 4] / answers: 1 / hits: 62310 / 13 Years ago, wed, october 12, 2011, 12:00:00

I have a JavaScript array, where each new item added to the array gets the next incremental number. An example would be as follows (I hope Im writing this correctly):

ArrayofPeople[0] = [{id: 529, name: Bob}];

ArrayofPeople[1] = [{id: 820, name: Dave}];

ArrayofPeople[2] = [{id: 235, name: John}];

The array is named ArrayofPeople, storing multiple data points for each person.

I need to know if an element with id of 820 exists in the array or not. How would this be done?

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answered 13 Years ago jelani · Accepted Answer

Something like this:

function in_array(array, id) {

    for(var i=0;i<array.length;i++) {

        return (array[i][0].id === id)

    }

    return false;

}



var result = in_array(ArrayofPeople, 235);