question about match or replace

[wesley1970]

in php we have

[PHP]
<?php>
$pattern[0]='/a/i';
$pattern[1]='/b/i';
$replacement[0]='';
$replacement[1]='';
$var = 'Watbe';
echo preg_replace($pattern, $replacement, $var);
?>[/PHP]

using pattern array to replace two match at the same time.


Under is what i know in javascript
[HTML]<script>
var str="aacc";
var rs=str.replace(/a/i,"0");
</script>[/HTML]

Is there any patterns array for us to use like the php one???

[hsriat]

I'm afraid, there isn't anything like that.

Instead, you may do it like this:

string.replace(srch[0], rplc[0]).replace(srch[1], rplc[1]);//and so on... 

Or you can create a function similar to preg_replace of PHP which will iterate for each string in the array and repeat the replace() function accordingly.

[rnd me]

String.prototype.replaceAll = function (r) {
    O = this;
    for (z = 0; z < r.length; z++) {
        tre = new RegExp(r[z][0], "gm");
        O = O.replace(tre, r[z][1]);
    }
    return O;
}
 
replacements = [
   ["hello","goodbye"], 
   ["world", "earth"]
]; //orig  //replacement
 
alert("hello world".replaceAll(replacements ));  //shows "goodbye earth"