They pass data from parent to child components.

No, props should not be modified directly.

What is prop validation?

It ensures correct data types for props.

Vue Props - Learn VUEJS | Revochamp

Name: Vue Props
Availability: InStock
Author: Revochamp

What are Props?

Props are custom attributes used to pass data from a parent component to a child component in Vue.

Basic Example

HTMLRead-only

<child-component message="Hello"></child-component>

<child-component message="Hello"></child-component>

JavaScriptRead-only

export default {
  props: ['message']
}

export default {
  props: ['message']
}

Dynamic Props

HTMLRead-only

<child-component :count="num"></child-component>

<child-component :count="num"></child-component>

Props Validation

JavaScriptRead-only

props: {
  title: String,
  age: Number
}

props: {
  title: String,
  age: Number
}

Default Values

JavaScriptRead-only

props: {
  name: {
    type: String,
    default: 'Guest'
  }
}

props: {
  name: {
    type: String,
    default: 'Guest'
  }
}

Required Props

JavaScriptRead-only

props: {
  id: {
    type: Number,
    required: true
  }
}

props: {
  id: {
    type: Number,
    required: true
  }
}

One-Way Data Flow

Props follow a one-way data flow, meaning data flows from parent to child only.

Best Practices

Validate props types
Use default values when needed
Keep props immutable
Use descriptive prop names

Common Mistakes

Modifying props directly
Not validating props
Using unclear prop names
Passing unnecessary data

Conclusion

Props are essential for communication between components in Vue. Proper usage ensures clean and maintainable code.

What are Props?

Props are custom attributes used to pass data from a parent component to a child component in Vue.

Basic Example

HTMLRead-only

<child-component message="Hello"></child-component>

<child-component message="Hello"></child-component>

JavaScriptRead-only

export default {
  props: ['message']
}

export default {
  props: ['message']
}

Dynamic Props

HTMLRead-only

<child-component :count="num"></child-component>

<child-component :count="num"></child-component>

Props Validation

JavaScriptRead-only

props: {
  title: String,
  age: Number
}

props: {
  title: String,
  age: Number
}

Default Values

JavaScriptRead-only

props: {
  name: {
    type: String,
    default: 'Guest'
  }
}

props: {
  name: {
    type: String,
    default: 'Guest'
  }
}

Required Props

JavaScriptRead-only

props: {
  id: {
    type: Number,
    required: true
  }
}

props: {
  id: {
    type: Number,
    required: true
  }
}

One-Way Data Flow

Props follow a one-way data flow, meaning data flows from parent to child only.

Best Practices

Validate props types
Use default values when needed
Keep props immutable
Use descriptive prop names

Common Mistakes

Modifying props directly
Not validating props
Using unclear prop names
Passing unnecessary data

Conclusion

Props are essential for communication between components in Vue. Proper usage ensures clean and maintainable code.

Vue Props

Vue Props

What are Props?

Basic Example

Dynamic Props

Props Validation

Default Values

Required Props

One-Way Data Flow

Best Practices

Common Mistakes

Conclusion

Try it yourself

Test Your Knowledge

Frequently Asked Questions

Need help?

Vue Props

Vue Props

What are Props?

Basic Example

Dynamic Props

Props Validation

Default Values

Required Props

One-Way Data Flow

Best Practices

Common Mistakes

Conclusion

Try it yourself

Test Your Knowledge

Frequently Asked Questions

Need help?