Function formatNumber

src/js/language/Language.js:253–264

(val, mask)

}

function formatNumber(val, mask) {
    if (mask.match(/%(\.(\d+))?f/)) {
        var match = mask.match(/%(\.(\d+))?f/);
        var token = match[0];
        if (match[2]) {
            val = val.toFixed(match[2]);
        }
        return mask.replace(token, val);
    }
    // use mask as literal display value.
    return mask;
}