[英]Is there a way to add an active class onClick for an array of buttons?
I map through the buttons array and get three buttons.我通过按键阵列 map 得到三个按键。 What i want to achieve is to be able to identify which button is clicked and add an active class
我想要实现的是能够识别单击了哪个按钮并添加了一个活动的 class
import React from "react";
import { useState } from "react";
import style from "./years.module.scss";
const Years = props => {
const [activeClass, setActiveClass] = useState(null);
const buttons = ["year one", "year two", "year three"];
return (
<div className={style.box}>
{buttons.map((button, index) => {
console.log(index,button)
return (
<button key={index} className={`${style.btn} ${style.active}`} >
{button}
</button>
);
})}
</div>
);
};
export default Years;
I use css modules to style the buttons我使用 css 模块来设置按钮样式
Just connect handler with each button - if clicked, the state is changed and stores the index
of active button.只需将处理程序与每个按钮连接 - 如果单击,state 将更改并存储活动按钮的
index
。 If it's active - add class.如果它处于活动状态 - 添加 class。
const changeActiveButton = (i) => () => {
setActiveClass(i);
};
<button
onClick={changeActiveButton (index)}
className={`${style.btn} ${index === activeClass ? style.active : ''}`}
>
<button key={index} className={`${style.btn} ${style.active}`} onClick={()=>setActiveClass(button)} >
{button}
</button>
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