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Access every other item in an array - JavaScript

rated 0 times [ 152] [ 2] / answers: 1 / hits: 29208 / 9 Years ago, mon, june 8, 2015, 12:00:00

Is it possible for me to access every other item in an array? So basically, all items in positions 0, 2, 4, 6 etc.

Here's my code if it helps:

function pushToHash(key, value) {

    for (var t = 0; t < value.length; t++) {

    MQHash[key[t]] = value.slice(0, lineLength[t]);

    }

}

So, I need to get every other value of lineLength. I only want this for lineLength, not key. I was thinking of doing a modulus, but wasn't sure how I'd implement it. Any ideas?

Thanks in advance!

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casandra

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2 Years ago

answered 9 Years ago dusty · Accepted Answer

If you just want this with lineLength and not with key, then add a second variable and use += when incrementing:

function pushToHash(key, value) {

    for (var t = 0, x = 0; t < value.length; t++, x += 2) {

        MQHash[key[t]] = value.slice(0, lineLength[x]);

    }

}

(The power of the comma operator...)