Mitä v-bind tekee?

<script setup>
import { ref } from "vue";
const imageUrl = ref("/photo.jpg");
const isDisabled = ref(true);
const id = ref("main");
</script>

<template>
  <img v-bind:src="imageUrl" />   <!-- full syntax -->
  <img :src="imageUrl" />          <!-- shorthand (idiomatic) -->
  <button :disabled="isDisabled">Save</button>
  <div :id="id" :data-index="5">...</div>
</template>