Vue uses an HTML-based template syntax that lets you declaratively bind the rendered DOM to the component's data. All Vue templates are valid HTML that can be parsed by spec-compliant browsers.
<template>
<div>
<!-- 1. Text interpolation with {{ }} -->
<p>{{ message }}</p>
<p>{{ 2 + 2 }}</p>
<p>{{ message.toUpperCase() }}</p>
<p>{{ isActive ? 'Yes' : 'No' }}</p>
<!-- 2. v-html - render raw HTML (careful: XSS risk) -->
<div v-html="rawHtml"></div>
<!-- 3. v-bind - bind attribute to data (:shorthand) -->
<img :src="imageUrl" :alt="imageAlt" />
<a :href="url" :target="openInNew ? '_blank' : '_self'">Link</a>
<button :disabled="isLoading">Submit</button>
<!-- 4. Dynamic class binding -->
<div :class="{ active: isActive, 'text-danger': hasError }"></div>
<div :class="[baseClass, isActive ? 'active' : '']"></div>
<!-- 5. Dynamic style binding -->
<div :style="{ color: textColor, fontSize: fontSize + 'px' }"></div>
<div :style="[baseStyles, overrideStyles]"></div>
<!-- 6. v-bind shorthand for object -->
<input v-bind="inputAttrs" />
<!-- same as: <input :type="inputAttrs.type" :placeholder="inputAttrs.placeholder" /> -->
</div>
</template>
<script setup>
import { ref, reactive } from 'vue'
const message = ref('Hello, Vue!')
const rawHtml = ref('<strong>Bold text</strong>')
const imageUrl = ref('/images/photo.jpg')
const imageAlt = ref('A photo')
const url = ref('https://vuejs.org')
const openInNew = ref(true)
const isLoading = ref(false)
const isActive = ref(true)
const hasError = ref(false)
const baseClass = ref('card')
const textColor = ref('#42b883')
const fontSize = ref(16)
const baseStyles = reactive({ fontFamily: 'Arial' })
const overrideStyles = reactive({ fontWeight: 'bold' })
const inputAttrs = reactive({ type: 'email', placeholder: 'Enter email', required: true })
</script>Understanding Template Syntax is not just about syntax. In production applications, this topic directly affects maintainability, debugging speed, and team collaboration. Focus on readability, small reusable patterns, and predictable state flow when implementing Template Syntax.
A practical approach is to first implement the simplest working version, then refactor into reusable pieces (components/composables/stores) only when duplication appears. This helps keep your Vue codebase clean while avoiding over-engineering.
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