版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/qq_20757489/article/details/90902391
方法一:slice()方法;
var a=[1,5,'ff','g','h','sd','g'];
alert( deletelast(a));
function deletelast(arr){
return arr.slice(0,arr.length-1);
}
方法二:concat()或slice()加pop();
function deletelast(arr){
// var newarr=arr.slice(0);
var newarr=arr.concat();
newarr.pop();
return newarr;
}