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2018-10-12 15:37:13 -04:00
---
title: Use a Ternary Expression for Conditional Rendering
---
# Use a Ternary Expression for Conditional Rendering
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This challenge is to use Ternary Expression only instead of using `If/Else` in code,
---
## Hints
### Hint 1
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Ternary operator has three parts, but you can combine several ternary expressions together. Here's the basic syntax:
```
condition ? expressionIfTrue : expressionIfFalse
```
---
## Solutions
<details><summary>Solution 1 (Click to Show/Hide)</summary>
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First you need declare state in constructor like this
```jsx
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constructor(props) {
super(props);
// change code below this line
this.state = {
input: '',
userAge: ''
}
// change code above this line
this.submit = this.submit.bind(this);
this.handleChange = this.handleChange.bind(this);
}
```
Then the ternary operator
```jsx
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{
/* change code here */
(this.state.userAge >= 18) ? buttonTwo : (this.state.userAge== '')? buttonOne: buttonThree
}
```
</details>