【发布时间】：2020-10-12 03:59:39
【问题描述】：
大家好，我正在尝试根据条件过滤复选框的 onClick 对象数组列表，但我在句柄方法中的 else 条件正在返回一个相同的数组，状态不会改变，所以我想要默认列表当我尝试取消选中所有复选框时，即删除过滤列表。
import React from "react";
import "./Search.css";
class Search extends React.Component {
constructor() {
super();
this.state = {
searchLists: [
{
id: 1,
type: "All",
name: "Akash",
location: "bangalore",
experience: 1
},
{
id: 2,
type: "FullTime",
name: "feroz",
location: "mumbai",
experience: 3
},
{
id: 3,
type: "PartTime",
name: "Farheen",
location: "agra",
experience: 5
},
{
id: 4,
type: "Freelancer",
name: "Raju",
location: "chennai",
experience: 6
},
{
id: 5,
type: "All",
name: "Asif",
location: "vegas",
experience: 7
}
],
checked: false
};
}
handleAll = () => {
console.log("i clicked");
if (this.state.checked === false) {
const filteredAll = this.state.searchLists.filter(
item => item.type === "All"
);
console.log(filteredAll);
this.setState({ searchLists: filteredAll, checked: true });
} else {
setTimeout(() => {
this.setState({
searchLists: this.state.searchLists,
checked: false
});
}, 10000);
}
};
handleFullTime = () => {
if (this.state.checked === false) {
const filteredFullTime = this.state.searchLists.filter(
item => item.type === "FullTime"
);
console.log(filteredFullTime);
this.setState({ searchLists: filteredFullTime, checked: true });
} else {
setTimeout(() => {
this.setState({
searchLists: this.state.searchLists,
checked: false
});
}, 10000);
}
};
handlePartTime = () => {
if (this.state.checked === false) {
const filteredPartTime = this.state.searchLists.filter(
item => item.type === "PartTime"
);
console.log(filteredPartTime);
this.setState({ searchLists: filteredPartTime, checked: true });
} else {
setTimeout(() => {
this.setState({
searchLists: this.state.searchLists,
checked: false
});
}, 10000);
}
};
handleFreelancer = () => {
if (this.state.checked === false) {
const filteredFreelancer = this.state.searchLists.filter(
item => item.type === "Freelancer"
);
console.log(filteredFreelancer);
this.setState({ searchLists: filteredFreelancer, checked: true });
} else {
setTimeout(() => {
this.setState({
searchLists: this.state.searchLists,
checked: false
});
}, 10000);
}
};
render() {
console.log("rendered");
const mapped = this.state.searchLists.map(item => {
return (
<div key={item.id}>
<li>
{item.name}
{item.type}
</li>
</div>
);
});
return (
<div className="searchContainer">
<form>
<label htmlFor="myInput">All</label>
<input
id="myInput"
type="checkbox"
onClick={this.handleAll}
checked={this.state.checked}
/>
<label htmlFor="myInput">FullTime</label>
<input id="myInput" type="checkbox" onClick={this.handleFullTime} />
<label htmlFor="myInput">PartTime</label>
<input id="myInput" type="checkbox" onClick={this.handlePartTime} />
<label htmlFor="myInput">Freelancer</label>
<input id="myInput" type="checkbox" onClick={this.handleFreelancer} />
</form>
<ul style={{ marginLeft: "70px" }}>{mapped}</ul>
</div>
);
}
}
export default Search;
这是我的代码https://codesandbox.io/s/eloquent-brattain-orv76?file=/src/Search.js的链接
【问题讨论】：
标签： javascript reactjs setstate react-component