every.js #1

var makeIterator = require('../function/makeIterator_');

    /**
     * Array every
     */
    function every(arr, callback, thisObj) {
        callback = makeIterator(callback, thisObj);
        var result = true;
        if (arr == null) {
            return result;
        }

        var i = -1, len = arr.length;
        while (++i < len) {
            // we iterate over sparse items since there is no way to make it
            // work properly on IE 7-8. see #64
            if (!callback(arr[i], i, arr) ) {
                result = false;
                break;
            }
        }

        return result;
    }

    module.exports = every;