what does es6 mean by the three-point expansion here? Answer by the great god. Can I post online materials? what I have seen by myself does not have this way of writing. It is all written by you who answer questions.
what does es6 mean by the three-point expansion here? Answer by the great god. Can I post online materials? what I have seen by myself does not have this way of writing. It is all written by you who answer questions.
this is a feature of es6 and is mainly used for the deconstruction of arrays and objects. The sample code is as follows:
// es6
const App = {
name:'323',
age:1
}
const C = {
...App,
title:'dsd'
}
// babel es5:
'use strict';
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; iPP) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
var App = {
name: '323',
age: 1
};
var C = _extends({}, App, {
title: 'dsd'
});
/ / C is
.{
name: '323',
age: 1,
title: 'dsd'
}let obj = {
name: 'name'
}
let newObj = {
...obj,
age: 18
}
//
{
name: 'name',
age: 18
}this is the ES6 deconstruction assignment. You can find out
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