Question

118

replace callback function with matches

rated 0 times [ 122] [ 4] / answers: 1 / hits: 47060 / 14 Years ago, tue, august 3, 2010, 12:00:00

need to replace <wiki>this page</wiki> to <a href='wiki/this_page'>this page</a>

using callback function:

text = text.replace(/<wiki>(.+?)</wiki>/g, function(match)

    {

        return <a href='wiki/+match.replace(/ /g, '_')+'>+match+</a>;

    }

);

result is that tag <wiki> is preserved (full match) - <a href='wiki/<wiki>this_page</wiki>'><wiki>this page</wiki></a>

Is there a way to get matches[0], matches[1] as in PHP's preg_replace_callback()?

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alyssiat

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4 Years ago

answered 14 Years ago tayla · Accepted Answer

The replace function's callback takes the matches as parameters.

For example:

text = text.replace(/<wiki>(.+?)</wiki>/g, function(match, contents, offset, input_string)

    {

        return <a href='wiki/+contents.replace(/ /g, '_')+'>+contents+</a>;

    }

);

(The second parameter is the first capture group)