我试图在进行API调用之前将反跳功能添加到我的应用程序中。但是,当我引入debouce时,似乎我的await被忽略了,并且由于缺少值而调用了函数
export default class App extends Component {
state = {
search: "Cats",
results: []
};
async search(text) {
const giphy = {
baseURL: "https://api.giphy.com/v1/gifs/search",
apiKey: "0UTRbFtkMxAplrohufYco5IY74U8hOes",
tag: text
};
let giphyURL = encodeURI(
giphy.baseURL + "?api_key=" + giphy.apiKey + "&q=" + giphy.tag
);
let data = await fetch(giphyURL);
return data.json();
}
async componentDidMount() {
// get default search
this.onSearch(this.state.text);
}
setSearch = e => {
this.setState({ search: e.target.value });
debounce(() => this.onSearch(this.state.search), 100);
};
async onSearch(text) {
console.log("text:", text);
try {
let response = await this.search(this.state.search);
console.log("data:", response.data);
// console.log(data.results);
let data = response.data.reduce((t, { title, id, images }) => {
t.push({ title, id, url: images.downsized_medium.url });
return t;
}, []);
this.setState({ results: data });
} catch (e) {
console.error("Failed Fetch", e.toString());
}
}
render() {
return (
<main className="app">
<Header>This is my Gif Search App</Header>
<nav className="navbar">
<SearchBox onSearch={this.setSearch} value={this.state.search} />
</nav>
<aside className="sidebar">Sidebar Bar</aside>
<section className="results">
<Results results={this.state.results} />
</section>
<footer className="footer">
<p className="footer-text">Copyright @funssies 2019</p>
</footer>
</main>
);
}
}
错误:在setSearch方法中,我包装了调用以防抖动方式获取数据,但没有任何 react 。
最佳答案
我想我知道了。 Deboune返回一个函数。然后我必须调用该功能
例如:
let myFunc = debounce(this.someFunction,100)
// call debounced function
myFunc()
我将功能更改为此:
delayedSearch = debounce(this.onSearch, 1500);
setSearch = e => {
this.setState({ search: e.target.value });
this.delayedSearch(this.state.search);
};
在此处找到帮助:lodash debounce not working in anonymous function