JS Simple i18n key => value

simple_i18n.js

// Array with translations
var translations = {
    'first': 'Hello, {{name}}!'
};

function t(key, values) {
    var str = translations[key];

    if (!values) {
        return str;
    }

    for (var value in values) {
        str = str.replace(RegExp("\\{{" + value + "\\}}", "gi"), values[value]);
    }

    return str;
}

// Usage
t('first', {name:"test"});