function stringToArrayLike(str, array) {
    for (var i = 0; i < str.length; ++i) {
        array[i] = str.charCodeAt(i) & 0xFF;
    }
    return array;
}
Fill in an array with a string.
@param {String} str the string to use.
@param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to fill in (will be mutated).
@return {Array|ArrayBuffer|Uint8Array|Buffer} the updated array.