匿名函数代码

函数传参

<script type="text/javascript">
    window.onload = function () {
        var a = document.getElementById('div1');
        
        function changeStyle(styl,val) {
            a.style[styl] = val;
        }
            changeStyle('color','red');
            changeStyle('background','gold');
    }
</script>

Return关键字

window.onload = function () {
        input01 = document.getElementById('input01');
        input02 = document.getElementById('input02');
        btn = document.getElementById('btn');

        btn.onclick = function () {
            var val01 = input01.value;
            var val02 = input02.value;
            var result = add(val01,val02);
            alert(result)
        };
        function add(a,b) {
            var c = parseInt(a)+ parseInt(b);
            return c;
        }
    }