inject-react-unmont/lib/inject-react-unmont.js

'解决异步请求时，出现不能在已经被销毁的组件中调用setState()方案。Can’t call setState (or forceUpdate) on an unmounted component '

//import React, { Component } from 'react'

function inject_react_unmont (target) {
    // 改装componentWillUnmount，销毁的时候记录一下
    let next = target.prototype.componentWillUnmount
    target.prototype.componentWillUnmount = function () {
        if (next) next.call(this, ...arguments);
        this.unmount = true
    }
    // 对setState的改装，setState查看目前是否已经销毁
    let setState = target.prototype.setState
    target.prototype.setState = function () {
        if ( this.unmount ) return ;
        setState.call(this, ...arguments)
    }
}

export default inject_react_unmont