How to Effectively Use Mustache Syntax Within Mustache Brackets in Vue.js

Discover how to render strings with dynamic values in Vue.js using computed properties and mustache syntax for better flexibility in your applications.
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This video is based on the question https://stackoverflow.com/q/66250196/ asked by the user 'MoPaMo' ( https://stackoverflow.com/u/12907088/ ) and on the answer https://stackoverflow.com/a/66251085/ provided by the user 'MinorFourChord' ( https://stackoverflow.com/u/15214083/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Mastering Dynamic Rendering with Mustache Syntax in Vue.js

If you're diving into the world of Vue.js, you might find yourself enchanted by its simplicity and powerful data-binding features. However, as a beginner, you might encounter some quirks—like how to effectively render strings that contain dynamic values using mustache syntax. In this guide, we will explore a common challenge and its elegant solution for rendering a string and including variables within that string.

The Challenge: Rendering a Dynamic String

Imagine you have a string that says "hi, {{name}}" and you want to display it in your application while inserting a dynamic name value based on user input or an AJAX call. The typical approach might involve trying to bind the string with mustache syntax, like this:

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You also might consider using v-html, but that has its limitations as well. The expected output in this case would be "hi, John Doe," where "John Doe" is a dynamic value that can change without being hardcoded into your HTML. Let's break this down and see how to overcome this challenge.

The Solution: Using a Computed Property

To achieve the desired functionality, we leverage Vue.js computed properties. A computed property allows us to dynamically generate a string by combining static text with variable data. Here’s how you can achieve this step by step:

Step 1: Define Your Data

Start by setting up your Vue instance and defining the necessary data properties. In this case, we will have just one data property called name. Make sure to initialize it with your desired dynamic value.

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Step 2: Create a Computed Property

Now, create a computed property that returns the desired string format. The computed property will concatenate the static text with the dynamic variable:

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Step 3: Render the Computed Property in Your Template

Next, use your computed property directly in the HTML template inside the app where you want to display the string. Here's an example of how your final HTML structure should look:

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Complete Code Example

Here’s the full code for your Vue.js application:

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Conclusion

In this post, we tackled the challenge of rendering a dynamic string with mustache syntax in Vue.js. By using a computed property, we were able to seamlessly combine static and dynamic content, enhancing the interactivity of our application.

If you’re ever stuck trying to render dynamic content in Vue.js, remember this approach. It's clean, efficient, and follows Vue's reactive nature beautifully. Happy coding and keep exploring the wonderful world of Vue.js!

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