13.3.4 push方法.html

javascript即用即差核心对象手册

<script>
   var arr=new Array();
   document.write("向数组中写入数据：");
   //单个数据写入数组
   for (var i=1;i<=4;i++)
   {
      var data=arr.push(Math.ceil(Math.random()*10));
	  document.write(data);
	  document.write("个,");
   }
   document.write("<br>");
   //批量写入数组
   var data=arr.push("a",3.14,"hello");
   document.write("批量写入，数组长度已为"+data+"<br>");
   var newarr=new Array(1,2,3,4,5);
   document.write("向数组中写入另一个数组<br>");
   //写入新数组
   arr.push(newarr);
   document.write("全部数据如下:<br>");
   document.write(arr.join(","));
</script>