var btn = document.getElementById("btn"); var result = document.getElementById("result"); var express = ["1", "2", "3"].map(parseInt); btn.onclick = function(){ result.innerHTML ="结果是:" + express + "<br />" + "数据类型是:" + Object.prototype.toString.call(express); }
<p>点击查看结果:</p> <button id="btn">查看结果</button> <p>结果:</p> <div id="result"></div>
p { font-size: 14px; height 24px; line-height: 24px; }