Javascript (React Select hooks)如何使用Select的onChange render prop更新状态?
我试过好几种方法,但都没能成功。我正在开发一个搜索栏组件,该组件在用户3秒钟内未更改搜索栏输入后进行提取调用,但我在更改userSearchInput状态钩子时遇到问题,该钩子在useEffect中触发api调用。以下是代码的最小化版本:Javascript (React Select hooks)如何使用Select的onChange render prop更新状态?,javascript,reactjs,react-hooks,react-select,Javascript,Reactjs,React Hooks,React Select,我试过好几种方法,但都没能成功。我正在开发一个搜索栏组件,该组件在用户3秒钟内未更改搜索栏输入后进行提取调用,但我在更改userSearchInput状态钩子时遇到问题,该钩子在useEffect中触发api调用。以下是代码的最小化版本: import React, { useState, useEffect } from "react"; import Select from "react-select"; export default fun
import React, { useState, useEffect } from "react";
import Select from "react-select";
export default function SearchBar() {
const [userSearchInput, setUserSearchInput] = useState("");
const [searchSuggestions, setSearchSuggestions] = useState([]);
useEffect(() => {
const searchSuggestions = async (searchInput) => {
console.log("api called");
const searchSuggestions = await fetch(
'API STUFF'
)
.then((response) => response.json())
.then((data) => {
setSearchSuggestions(data.quotes);
});
};
const timer = setTimeout(() => {
if (userSearchInput !== "") {
searchSuggestions("test");
}
}, 3000);
return () => clearTimeout(timer);
}, [userSearchInput]);
const handleSearchInputChange = (event) => {
setUserSearchInput(event.target.value);
console.log("input changed");
};
return (
<Select
options={searchSuggestions}
value={userSearchInput}
placeholder="Search a ticker"
onChange={handleSearchInputChange}
/>
);
}
知道我哪里出错了吗?选择具有包含标签和值的对象的值 另外,react select已经在函数的参数中返回了值,所以您所要做的就是使用它
const handleSearchInputChange = (selectedOptionObj) => {
setUserSearchInput(selectedOptionObj);
console.log("input changed");
};