标签归档：this

匿名函数与闭包的 this 均指向 window。

function a() {
  (function () {
    console.log(this, 'function');
  })();
  function b() {
    console.log(this, 'function b')
  };
  b();
}
a();
// > Window {window: Window, self: Window, document: document, name: '', location: Location, …} 'function'
// > Window {window: Window, self: Window, document: document, name: '', location: Location, …} 'function b'

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