What is the difference between emit and props in Vue?

What is the difference between emit and props in Vue?

In Vue, props are used to pass data from a parent component to a child component, while emit is used to send events from a child component to a parent.

Can you give me an example of how to use emit?

Sure! In a child component, you can use this.$emit('eventName', data) to emit an event. The parent can listen for this event using @eventName='methodName'.

When should I use props instead of emit?

Use props when you need to pass data down to child components. Use emit when you want to notify the parent about an event or action taken in the child.

Are there any performance considerations between using emit and props?

Generally, both are efficient, but excessive use of emit can lead to complex event chains. It's best to keep communication clear and straightforward.