js的replaceall方法,js replaceall和replace的区别
http://www.itjxue.com 2023-01-06 03:35 来源:未知 点击次数:
js手写实现 jquery的replaceall方法,怎么实现?
String.replaceall=function (oldstr,newstr){
var oldlength =this.length;
var ret =this.replace(oldstr,newstr);
if(ret.lengtholdlength)
return ret.replaceall(oldstr,newstr);
returnt ret;
}
使用方法:
var teststr ="asdfasdfasdfasdfasdfasdfasdfasdfasdf";
alert(teststr.replaceall("as","df"));
JS replaceAll()方法怎么去除字符串中间所有空格
//javascript?没有replaceAll()这个方法,只有replace();
var?str?=?"ssss??ddadf";
var?re?=?str.replace(/\s+/g,"");//删除所有空格;
怎么用js批量删除指定文字
function(){
????//?获取textarea
????var?txt?=?document.getElementById('txt');
????//?把textarea的值使用@qq.com分割成数组,
????//?再使用换行符\n连接起来,再将值赋给textarea
????txt.value?=?txt.value.split('@qq.com').join('\n');
}