in salesforce/canvas/public/javascripts/canvas-all.js [163:176]
isEmpty: function (obj) {
if (obj === null) {
return true;
}
if ($.isArray(obj) || $.isString(obj)) {
return obj.length === 0;
}
for (var key in obj) {
if ($.hasOwn(obj, key)) {
return false;
}
}
return true;
},