how to count the number of times radio button is checked in react

user_17227120 0
Viewed 135

if you click any of 3 radio button in any time it will count the number of clicked if the number of clicked is greater than 3 in console it give message you win or else you lose ,but its not working

import React, { useState } from 'react';
export default function App() {
    const [disable, setDisable] = useState(false);
    const check = ({target}) => {
    if (target.id==='one') {
      setDisable(true);
    }
    else {
      setDisable(false);
    }
    }
    const handlechange=(e)=>{
      let c=e.target.value;
      if(c.length>3)
      console.log('win')
      else
      console.log('lose')
    }
    return (
        <>
            <input  type="radio" onChange={(e) => {check(e);handlechange(e)}} disabled={disable} name="one" />
            <input type="radio" onChange={(e) => {check(e);handlechange(e)}} disabled={disable} name="one" />
            <input type="radio" onChange={(e) => {check(e);handlechange(e)}} disabled={disable} name="one" id="one"/>
       </>
    );
}
reactjs javascript
2 Answers

Let the handlechange function know exactly whice input was checked: Please try this:

const handlechange=(e, number)=>{

      if(number>=3)
      console.log('win')
      else
      console.log('lose')
    }
    return (
        <>
            <input  type="radio" onChange={(e) => {check(e, 1);handlechange(e, 1)}} disabled={disable} name="one" />
            <input type="radio" onChange={(e) => {check(e, 2);handlechange(e, 2)}} disabled={disable} name="one" />
            <input type="radio" onChange={(e) => {check(e, 3);handlechange(e, 3)}} disabled={disable} name="one" id="one"/>
       </>
    );
user_178278660

Here is the solution to your problem, Create a clickCount state and update it on radio button change.

import React, { useState } from "react";
export default function App() {
  const [disable, setDisable] = useState(false);
  const [clickCount, setClickCount] = useState(1);

  const handlechange = (e) => {
    setClickCount(clickCount + 1);
    if (clickCount > 3) {
      console.log("win");
      setDisable(true);
    } else {
      console.log("lose");
    }
  };
  return (
    <>
      <input
        type="radio"
        onChange={handlechange}
        disabled={disable}
        name="one"
      />
      <input
        type="radio"
        onChange={handlechange}
        disabled={disable}
        name="one"
      />
      <input
        type="radio"
        onChange={handlechange}
        disabled={disable}
        name="one"
      />
    </>
  );
}

Sandbox link.

user_39754590
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