How insert JavaScript into Vue file

How insert JavaScript into Vue file

In a Vue.js file (typically a .vue file), you can include JavaScript code in a few different ways, depending on where you want the code to reside. A Vue.js file typically consists of three parts: <template>, <script>, and <style>. Here's how you can insert JavaScript into a Vue file:

1. Inside <script> Tag:

You can include your JavaScript code directly inside the <script> tag in the Vue file. This is the most common way when you have script logic specific to the component.

<template> <!-- Your template code here --> </template> <script> export default { data() { return { message: 'Hello from Vue!' }; }, methods: { handleClick() { alert('Button clicked!'); } } // ... other component options }; </script> <style> /* Your style code here */ </style>

2. External JavaScript File:

If your JavaScript code becomes large or you want to separate concerns, you can also include an external JavaScript file and import it into the <script> section. For example, create a file named myScript.js:

// myScript.js export const myFunction = () => { console.log('Function from external script'); };

Then, in your Vue file:

<template> <!-- Your template code here --> </template> <script> import { myFunction } from './myScript'; export default { created() { myFunction(); } // ... other component options }; </script> <style> /* Your style code here */ </style>

3. Inline JavaScript in Template:

You can also include inline JavaScript directly within the <template> section using expressions ({{ ... }}). However, this is generally not recommended for complex logic.

<template> <div> <p>{{ message }}</p> <button @click="handleClick">Click me</button> </div> </template> <script> export default { data() { return { message: 'Hello from Vue!' }; }, methods: { handleClick() { alert('Button clicked!'); } } // ... other component options }; </script> <style> /* Your style code here */ </style>

Choose the method that best fits your needs based on the complexity and scope of your JavaScript code within the Vue component.

Examples

  1. "Vue.js inline JavaScript in template"

    • Description: Learn how to insert inline JavaScript directly into a Vue template.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> <button @click="customFunction">Click me</button> </div> </template> <script> export default { data() { return { message: 'Hello, Vue!' }; }, methods: { customFunction() { alert('Button clicked!'); } } }; </script> <style> /* Styles go here */ </style>

  2. "Vue.js include external JavaScript file"

    • Description: Find out how to include an external JavaScript file in a Vue component.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> </div> </template> <script src="./path/to/external-script.js"></script> <script> export default { data() { return { message: 'Hello, Vue!' }; } }; </script> <style> /* Styles go here */ </style>

  3. "Vue.js script tag for global JavaScript"

    • Description: Explore how to use the script tag in a Vue file for global JavaScript.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> </div> </template> <script> // Global JavaScript alert('Global script executed!'); </script> <script> export default { data() { return { message: 'Hello, Vue!' }; } }; </script> <style> /* Styles go here */ </style>

  4. "Vue.js execute JavaScript on component mount"

    • Description: Learn how to execute JavaScript code when a Vue component is mounted.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> </div> </template> <script> export default { data() { return { message: 'Hello, Vue!' }; }, mounted() { // JavaScript to execute on component mount console.log('Component mounted!'); } }; </script> <style> /* Styles go here */ </style>

  5. "Vue.js inline JavaScript event handlers"

    • Description: Find examples of using inline JavaScript for event handlers in Vue templates.
    <!-- Vue template --> <template> <div> <button @click="customFunction">Click me</button> </div> </template> <script> export default { methods: { customFunction() { alert('Button clicked!'); } } }; </script> <style> /* Styles go here */ </style>

  6. "Vue.js run JavaScript function on button click"

    • Description: Explore how to run a JavaScript function when a button is clicked in a Vue component.
    <!-- Vue template --> <template> <div> <button @click="customFunction">Click me</button> </div> </template> <script> export default { methods: { customFunction() { alert('Button clicked!'); } } }; </script> <style> /* Styles go here */ </style>

  7. "Vue.js execute JavaScript on data change"

    • Description: Learn how to execute JavaScript code when data in a Vue component changes.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> </div> </template> <script> export default { data() { return { message: 'Hello, Vue!' }; }, watch: { message(newMessage, oldMessage) { console.log('Data changed:', newMessage); } } }; </script> <style> /* Styles go here */ </style>

  8. "Vue.js run JavaScript on route change"

    • Description: Explore how to execute JavaScript code when the route changes in a Vue.js application.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> </div> </template> <script> export default { data() { return { message: 'Hello, Vue!' }; }, watch: { $route(to, from) { console.log('Route changed:', to.fullPath); } } }; </script> <style> /* Styles go here */ </style>

  9. "Vue.js use external JavaScript library"

    • Description: Find examples of using an external JavaScript library within a Vue component.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> </div> </template> <script> import externalLibrary from 'external-library'; export default { data() { return { message: externalLibrary.getMessage() }; } }; </script> <style> /* Styles go here */ </style>

  10. "Vue.js import JavaScript module"

    • Description: Learn how to import and use a JavaScript module within a Vue component.
    <!-- Vue template --> <template> <div> <p>{{ message }}</p> </div> </template> <script type="module"> import { myFunction } from './my-module.js'; export default { data() { return { message: myFunction() }; } }; </script> <style> /* Styles go here */ </style>

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