多个用javascript替换

Question

在PHP中,您这样做是为了一次替换多个值.

<?php
$string = "i am the foobar";

$newstring = str_replace(array('i', 'the'), array('you', 'a'), $string);

echo $newstring;
?>

你是如何在javascript中做到这一点的？

Answer 1

使用javascript的.replace()方法,将多个替换串起来.即:

var somestring = "foo is an awesome foo bar foo foo"; //somestring lowercase
var replaced = somestring.replace(/foo/g, "bar").replace(/is/g, "or");
// replaced now contains: "bar or an awesome bar bar bar bar"

Answer 2

你可以这样做:

http://jsfiddle.net/ugKRr/

var string = "jak har en mamma";

string = string.replace(/(jak)|(mamma)/g,function(str,p1,p2) {
        if(p1) return 'du';
        if(p2) return 'pappa';
    });

要么:

http://jsfiddle.net/ugKRr/2/

var string = "jak har en mamma";

string = string.replace(/jak/g,'du').replace(/mamma/g,'pappa');