Dynamically Change Text in ReactJS Render

Learn how to dynamically update parts of your text in ReactJS based on conditions. This guide walks you through handling multiple conditions with ease.
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How to Dynamically Change Part of Text Inside a ReactJS Render

When working with ReactJS, you might encounter instances where text needs to change based on certain conditions. This can often leave you puzzled, especially if you are new to React syntax. In this post, we will explore how to tackle the problem of dynamically altering parts of text rendered in ReactJS components. Let’s break it down step-by-step.

The Problem Statement

Imagine you have a user interface displaying a progress report that features the text "Completed: XX%". The challenge arises when you want to toggle specific parts of this text based on certain conditions. For instance:

Condition One: Determines whether the prefix "Completed: " should be shown.

Condition Two: Controls the appearance of the completion value (i.e., the percentage) by modifying its style.

An example of your initial code looks something like this:

[[See Video to Reveal this Text or Code Snippet]]

This setup adequately addresses the first condition. However, integrating the second condition correctly, while ensuring the text can change color or style based on its state, can get tricky.

The Solution

To tackle the issue of modifying the second part of the text (the percentage), we need to wrap that specific part with a <span> tag. Below is the revised approach to handle the conditions effectively:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

Using <span>: By wrapping the text in a <span>, React allows part of the text to be styled differently without creating an entirely new element for the percentage value.

Conditional Rendering:

First <span>: Here, we check if conditionOne is true. If it is, "Completed: " will display; otherwise, nothing will.

Second <span>: This is where we handle our second condition. If conditionTwo holds true, the class name conditionTwoDiv is applied, which can style the completion percentage differently (like changing the text color).

Benefits of This Approach

Simplicity: The solution is straightforward and prevents the complications of nested conditional statements.

Readability: The code remains clean and easy to understand, which is beneficial, especially for beginners in programming.

Custom Styling: You can easily manipulate the styles of different parts of your text via CSS by targeting the specific class names.

Conclusion

Modifying parts of text dynamically in ReactJS might seem daunting, especially when dealing with multiple conditions. However, utilizing simple HTML structure such as <span> tags allows you to maintain control over how each part is displayed while keeping your code easily digestible.

By following the steps outlined above, you can successfully implement conditional rendering for text in your React applications without getting lost in complex logic!

If you have questions or need further clarification on any point, feel free to reach out in the comments below!