如何用浏览器调试出js代码
请问下面的程序为什么我输入到谷歌和火狐里面的console里面没有反应，没有像注释一样给我打印出值
function test(o) { var i = 0; // i is defined throughout function
if (typeof o == "object") {
var j = 0; // j is defined everywhere, not just block
for(var k=0; k < 10; k++) { // k is defined everywhere, not just loop
console.log(k); // print numbers 0 through 9
}
console.log(k); // k is still defined: prints 10
}
console.log(j); // j is defined, but may not be initialized
}
回答：
你这只是一个方法，没有调用它
function test(o) { var i = 0; // i is defined throughout function
if (typeof o == "object") {
var j = 0; // j is defined everywhere, not just block
for(var k=0; k < 10; k++) { // k is defined everywhere, not just loop
console.log(k); // print numbers 0 through 9
}
console.log(k); // k is still defined: prints 10
}
console.log(j); // j is defined, but may not be initialized
}
test({a: '1'})
这样不就好了么
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