js如何去掉字符串中的某串字符 js如何去除字符串某个特定字符
\u8bf7\u95eeJS\u5982\u4f55\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u5176\u4e2d\u67d0\u4e00\u4e2a\u5b57\u7b26var yugi = function(str, reg, replaced){ return str.replace(reg, replaced);}var str = "1+2*3+2";str = yugi(str, "2*3", "5");console.log(str);
\u5047\u8bbe\u4e00\u4e2adata\u91cc\u9762\u7684\u6570\u636e\u662f[tian,12],\u73b0\u5728\u53bb\u6389[],\u4ee3\u7801\u5982\u4e0b
data=data.replace("[","");
data=data.replace("]","");
\u83b7\u5f97\u7684\u5c31\u662ftian,12
\u5728new\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4
var strs= new Array(); //\u5b9a\u4e49\u4e00\u6570\u7ec4
strs=data.split(","); //\u5b57\u7b26\u5206\u5272
strs[0]\u5c31\u662ftian
strs[1]\u5c31\u662f12
var strM = "javascript is a good script language";
//在此我想将字母a替换成字母A
alert(strM.replace("a","A"));
</script>
这样只能替换第一个“a”字母
<script language="javascript">
var strM = "javascript is a good script language";
//在此将字母a全部替换成字母A
alert(strM.replace(/a/g,"A"));
</script>
方法一：用字符串替换
比如：我有一个字符串var str = "abc123def";
现在想把123去掉，str = str.replace("123", ""); //后面的那个""不要有空格
方法二：截取
先把abc截取出来 ，再截取def
var str1 = str.substring(0, 2); //后面括号里的参数是截取的开始和结束位置。
var str2 = str.substring(6, str.length()-1);
str = str1+str2; //这样得到的也是abcedf字符串
使用JS字符串替换函数:Replace(“某串字符″, “″)，
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绛旓細 var strM = "javascript is a good script language";//鍦ㄦ鎴戞兂灏嗗瓧姣峚鏇挎崲鎴愬瓧姣岮 alert(strM.replace("a","A")); 杩欐牱鍙兘鏇挎崲绗竴涓渁鈥濆瓧姣 var strM = "javascript is a good script language";//鍦ㄦ灏嗗瓧姣峚鍏ㄩ儴鏇挎崲鎴愬瓧姣岮 alert(strM.replace(/a/g,"A")); ...
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