正确的是
var name = 'World!';
(function () {
if (typeof name === 'undefined') {
var name = 'Jack';
console.log('Goodbye ' + name);
} else {
console.log('Hello ' + name);
}
})();
选项:
A:Goodbye Jack
B:Hello Jack
C:Hello undefined
D:Hello World
发布时间:2024-06-04 13:43:58