【destructuring assignment】
The destructuring assignment syntax is a JavaScript expression that makes it possible to extract data from arrays or objects into distinct variables.
A variable can be assigned a default, in the case that the value pulled from the array is undefined.
You can ignore return values that you're not interested in:
When destructuring an array, you can assign the remaining part of it to a variable using the rest pattern:
Object destructuring
A variable can be assigned its value with destructuring separate from its declaration.
Assigning to new variable names
default values
Nested object and array destructuring
For of iteration and destructuring
参考：https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment