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前端问题解决
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[Daily]以下代码输出 #103

Closed DevilRoshan closed 4 years ago

DevilRoshan commented 4 years ago

出自小程序前端面试星球

// 以下代码输出
var a = 0;
if(true){
  a = 10;
  console.log(a, window.a);
  function a(){}
  console.log(a, window.a);
  a = 20;
  console.log(a, window.a);
}
console.log(a)
DevilRoshan commented 4 years ago

https://github.com/DevilRoshan/Question/blob/master/20200806-js-code-scope.md