JavaScript REGEX Match all and replace

Question

I am coding a simple templating function in javascript.

I have my template loading fine, now is the part when I need to parse the content to the placeholders.

<

Answer 1

var data = {
    name: 'zerkms',
    age: 42
};

var str = '{{name}} is {{age}}'.replace(/\{\{(.*?)\}\}/g, function(i, match) {
    return data[match];
});

console.log(str);

http://jsfiddle.net/zDJLd/

Answer 2

Well, first you'll need the g flag on the regex. This tells JavaScript to replace all matched values. Also you can supply a function to the replace method. Something like this:

var result = str.replace(/\{\{(.*?)\}\}/g, function(match, token) {
    return data[token];
});

The second parameter matches the first subgroup and so on.