文本域的高度自适应

<textarea maxlength="100" class="text" data-adaptheight rows="3" cols="40" placeholder="Your input"          style="padding: 16px; line-height: 1.5;"></textarea><script>    (function () {        function adjustHeight(el, minHeight) {            var outerHeight = parseInt(window.getComputedStyle(el).height, 10);            var diff = outerHeight - el.clientHeight;            el.style.height = 0;            el.style.height = Math.max(minHeight, el.scrollHeight + diff) + ‘px‘;        }        var textAreas1 = document.getElementsByClassName(‘text‘);        for(var i = 0; i< textAreas1.length;  i++) {            foo([textAreas1[i]]);        }        function foo(textAreas){            for (var i = 0, l = textAreas.length; i < l; i++) {                var el = textAreas[i];                el.style.boxSizing = el.style.mozBoxSizing = ‘border-box‘;                el.style.overflowY = ‘hidden‘;                var minHeight = el.scrollHeight;                el.addEventListener(‘input‘, function () {                    adjustHeight(el, minHeight);                });                window.addEventListener(‘resize‘, function () {                    adjustHeight(el, minHeight);                });                adjustHeight(el, minHeight);            }};    }());</script>