Beginner LevelVue JS
How does text interpolation work in Vue templates using mustache syntax?
❓ Interview Prompt: Explain text interpolation using {{ mustache }} syntax, single JavaScript expressions, and auto-escaping.
Mustache syntax ('{{ expression }}') is the basic form of data binding in Vue templates.
Key Rules:
1
Reactive Binding: Text content inside '{{ }}' automatically updates whenever the referenced reactive property changes.
2
Single JavaScript Expressions: Supports single expressions that return a value (e.g. '{{ count + 1 }}', '{{ isOk ? "YES" : "NO" }}', '{{ message.split("").reverse().join("") }}').
3
HTML Escaping: Mustache tags automatically escape HTML characters to prevent XSS attacks. To render raw HTML, use the 'v-html' directive.
Code Implementation Example
html
<script setup>
import { ref } from 'vue';
const message = ref('Hello Vue!');
const isPremium = ref(true);
</script>
<template>
<div>
<!-- 1. Simple text interpolation -->
<p>{{ message }}</p>
<!-- 2. Ternary operator expression -->
<p>Account Type: {{ isPremium ? 'Premium Plan' : 'Free Tier' }}</p>
<!-- 3. String manipulation expression -->
<p>Uppercase: {{ message.toUpperCase() }}</p>
</div>
</template>💡Text interpolation using mustache syntax with JavaScript expressions.
🎯 Interview Key Takeaway
Mustache syntax {{ }} binds reactive data to text nodes and evaluates single JavaScript expressions.
#Templates#Interpolation#Mustache#Beginner
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