CodePen Embed - 箭頭函式建構式練習

<p>箭頭函式建構式練習</p>

const fn = function (a) {
  this.name = a
}
const Arrowfn = (a) => {
  this.name = a
}

console.log(fn.prototype, Arrowfn.prototype)
const a = new fn('a')
console.log(a)
const b = new Arrowfn('b')
console.log(b)

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