Convert form data to JavaScript object with jQuery

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serializeArray already does exactly that. You just need to massage the data into your required format:

function objectifyForm(formArray) {
    //serialize data function
    var returnArray = {};
    for (var i = 0; i < formArray.length; i++){
        returnArray[formArray[i]['name']] = formArray[i]['value'];
    }
    return returnArray;
}

Watch out for hidden fields which have the same name as real inputs as they will get overwritten.

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