How to check array contains element or not

/**
 * This method to check array contains element or not
 * @param array
 * @param element
 * @returns {Boolean}
 */

function contains(array, element) {
    for ( var indx = 0; indx < array.length; indx++) {
        if (array[indx] == element) {
            return true;
        }
    }
    return false;
}