chamilo-lms2/app/Resources/public/assets/modernizr/feature-detects/forms-inputnumber-l10n.js

// input[type="number"] localized input/output
// // Detects whether input type="number" is capable of receiving and
// // displaying localized numbers, e.g. with comma separator
// // https://bugs.webkit.org/show_bug.cgi?id=42484
// // Based on http://trac.webkit.org/browser/trunk/LayoutTests/fast/forms/script-tests/input-number-keyoperation.js?rev=80096#L9
// // By Peter Janes

Modernizr.addTest('localizedNumber', function() {
    var doc = document,
        el = document.createElement('div'),
        fake,
        root,
        input,
        diff;
    root = doc.body || (function() {
        var de = doc.documentElement;
        fake = true;
        return de.insertBefore(doc.createElement('body'), de.firstElementChild || de.firstChild);
    }());
    el.innerHTML = '<input type="number" value="1.0" step="0.1"/>';
    input = el.childNodes[0];
    root.appendChild(el);
    input.focus();
    try {
        doc.execCommand('InsertText', false, '1,1');
    } catch(e) { // prevent warnings in IE
    }
    diff = input.type === 'number' && input.valueAsNumber === 1.1 && input.checkValidity();
    root.removeChild(el);
    fake && root.parentNode.removeChild(root);
    return diff;
});