第1题
var y = 1;
if (function f(){}) {
y += typeof f;
}
console.log(y);
第2题
var output = (function(x){
delete x;
return x;
})(0);
console.log(output);
第3题
var x = 1;
var output = (function(){
delete x;
return x;
})();
console.log(output);
第4题
var x = { foo : 1};
var output = (function(){
delete x.foo;
return x.foo;
})();
console.log(output);
第5题
var Employee = {
company: 'xyz'
}
var emp1 = Object.create(Employee);
delete emp1.company
console.log(emp1.company);
第6题
var trees = ["xyz","xxxx","test","ryan","apple"];
delete trees[3];
console.log(trees.length);
第7题
var bar = true;
console.log(bar + 0);
console.log(bar + "xyz");
console.log(bar + true);
console.log(bar + false);
第8题
var z = 1,
y = z = typeof y;
console.log(y);
第9题
var foo = function bar(){
return 12;
};
typeof bar();
第10题
var salary = "1000$";
(function () {
console.log("Original salary was " + salary);
var salary = "5000$";
console.log("My New Salary " + salary);
})();
