Скачать или смотреть How to Create a Bold Button for an Editable Div in React.js

Learn how to implement a bold button for an editable div in React.js using the `execCommand` method. This guide walks you through the necessary steps and common pitfalls.
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This video is based on the question https://stackoverflow.com/q/63777342/ asked by the user 'Alexander Juhl' ( https://stackoverflow.com/u/8559157/ ) and on the answer https://stackoverflow.com/a/63777427/ provided by the user '95faf8e76605e973' ( https://stackoverflow.com/u/8680805/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Create a Bold Button for an Editable Div in React.js

Creating an editable text area on a web page can be a handy feature for many applications. If you're working with React.js, you might be interested in adding formatting options, such as making selected text bold. This post will guide you through the steps necessary to implement a bold button for an editable div.

The Challenge: Making Text Bold

If you've ever tried to create a rich text editor from scratch, you might face challenges when trying to format text. For instance, you might have tried to use document.execCommand('bold', false, null);, but found it didn't work as expected. The problem often lies in the capitalization of HTML attributes used in React.

Step-by-Step Solution

1. Setting Up Your Editor Component

Here’s the basic structure of your React component that includes an editable div and a button for making text bold:

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

2. Key Adjustments to Make It Work

Correct Attribute Names

In React.js, the names of certain attributes are case-sensitive. The HTML attributes onclick and contenteditable should be written as onClick and contentEditable, respectively. Here’s how you can adjust your code:

Change onclick to onClick.

Change contenteditable to contentEditable.

3. Updated Editor Component

Here’s the revised code with correct attribute names:

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

4. Testing Your Editor

Once you have updated your component:

Start your React application.

Select any text in the editable div.

Click the bold button.

You should see your selected text change to bold!

Conclusion

By following the steps outlined above, you can easily add a bold formatting feature to your editable div in React.js. Remember to always check for the case sensitivity of your elements when working with React.

With these adjustments, you now have a fully functional bold button for your text editor. Enjoy building your rich text editor and experimenting with other formatting options!