WebStorm未解决变量警告

Question

我使用WebStorm来实现React JS，并且我得到了这个＆＃39; Unresolved variable warning＆＃39;通过所有道具。

但是一切都没有问题，语言被定义，它存在。 代码有效，我的应用没有任何问题。

这就是我在Languages & Frameworks > JavaScript > Libraries

中的内容

知道如何避免这些警告吗？

更新

发生这种情况的代码示例。第一个父组件：

import ExpirationTimer from '../../common/expirationTimer';

export default class ListView extends React.Component {
    render (){
        const language = this.props.language;
        let expirationDate = "Wed May 10 2017 15:58:59 GMT+0200";

        return (
            <div>
                <ExpirationTimer expirationDate={expirationDate} language={language}/>
            </div>
        )
    }
}

语言是对象{lowestPrice: "Lowest price", mileage: "Mileage", ....}

然后我尝试获取这些道具的组件，它可以工作，但我得到警告他们没有解决：

 export default class ExpirationTimer extends React.Component {
    constructor(props){
        super(props);

        this.state = {                
            expirationDate: this.props.expirationDate // Here I get the warning
        };
    }

    render(){
        let language = this.props.language; // Here I get the warning


        return (
            <div>
                .....
            </div>
        );
    }
}

Answer 1

使用解构赋值： let language = this.props.language; 而是function arrDiff(xs, yx, d) { const apply = f => x => f(x); const flip = f => y => x => f(x)(y); const concat = y => xs => xs.concat(y); const createMap = xs => new Map(xs); const filter = f => xs => xs.filter(apply(f)); //left difference const differencel = xs => yx => { const zs = createMap(yx); return filter(([k, x]) => zs.has(x) ? false : true)(xs); }; if (d == 'left') return differencel //right difference const difference2 = flip(differencel); if (d == 'join') return difference2; //union if (d == "union") { const map = new Map([...xs, ...yx]); return map; } // symmetric difference const difference = yx => xs => concat(differencel(xs)(yx)) (flip(differencel)(xs)(yx)); return difference; } const xs = [ ['a', 1], ['b', 2], ['c', 2], ['d', 3], ['e', 4], ['f', 5] ]; const ys = [ ['g', 0], ['h', 1], ['f', 2], ['b', 3], ['c', 3], ['a', 3], ['e', 6], ['h', 7] ]; console.log(arrDiff(xs, ys, 'left'));