Javascript - How to stop switching true/false if value doesn't need to be changed?

Enza
August 14, 2023
166 views
0 votes
2 Answers

I have a simple true/false switching function:

import {useState} from 'react'
const [ isTrue, setIsTrue] = useState(true)

function handleSwitcher(){
    {isTrue ? setIsTrue(false) : setIsTrue(true)}
}

<button onClick={()=>{
    handleSwitcher()
    console.log(isTrue)
}}>
   Set to true
</button>

<button onClick={()=>{
    handleSwitcher()
    console.log(isTrue)
}}>
   Set to false
</button>

If we click on both of buttons it will always render opposite to true or false. What I need is, if isTrue’s value is false and I click on ‘Set to false’ button it doesn’t change isTrue’s value to true. Same to ‘Set to true’ button, it shouldn’t change isTrue’s value to false, when value is true.

Tags: javascript reactjs

Answers

- deekep
- August 14, 2023 at 12:48 pm
- 0 votes
0
You don’t need a handleSwitcher, just set the desired value when you click on the button, then it will be exactly the way you want
```
import {useState} from 'react'
const [ isTrue, setIsTrue] = useState(true)

<button onClick={()=>{
    setIsTrue(true)
    console.log(isTrue)
}}>
   Set to true
</button>

<button onClick={()=>{
    setIsTrue(false)
    console.log(isTrue)
}}>
   Set to false
</button>
```
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