javascript - 花括号内的变量初始化

Question

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Answer 1

这是一个名为 destructuring assignment 的功能在 ES6 中。这是发生了什么:

// Imagine this is the object you require
var reactRouter = {
  create: 'foo',
  HistoryLocation: 'bar',
  HashLocation: 'baz'
}

// Destructure
var {create: createRouter, HistoryLocation, HashLocation} = reactRouter

// Now the variables are in scope
console.log(createRouter, HistoryLocation, HashLocation)
//^ foo, bar, baz