Vue.js allows you to conditionally render HTML elements based on the state of your application. You can use if, Elif, Else statements or ternary operator for this purpose.
Here are some ways you can solve Vue.js Conditional Rendering Based on State:
- If Statement You can use an If statement to show or hide elements based on the state of a variable in your data. For example:
<div v-if="isLoggedIn">Welcome, {{ userName }}!</div>
This will only render the 'Welcome' message if isLoggedIn is true.
- Elif Statement (Multiple conditions) If you want to check multiple conditions, you can use the Else If statement in combination with If and Elif:
<div v-if="userRole == 'admin'">Welcome, {{ userName }}! You are an admin.</div>
<div v-elif="userRole == 'editor'">Welcome, {{ userName }}! You are an editor.</div>
<div v-else>Welcome, {{ userName }}! You are a regular user.</div>
- Ternary Operator You can also use the ternary operator to render elements based on some conditions:
<div>{{ isLoggedIn ? 'Welcome, ' + userName : 'Please log in' }}</div>
This will show a welcome message if IsLoggedIn is true, else it will show a login message.
Remember that Vue.js uses one-way data binding which means any change in the DOM won't affect your data. If you want to make changes in your data based on some condition, use methods or computed properties.