Lesson 07 · 11 min
props down, emit up
defineProps reads. defineEmits notifies the parent. Don't write into a prop.
const props = defineProps({ title: { type: String, required: true } }). In the template title is visible by itself. Up: const emit = defineEmits(["saved"]) and emit("saved", id). The parent: @saved="reload". It's the same contract as Input/Output in Angular and props/callbacks in React.
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