Member-only story
For more questions and answers visit our website at Frontend Interview Questions
Why Replace HTML Tags?
- Sanitization: Removing potentially harmful tags to prevent cross-site scripting (XSS) attacks.
- Formatting: Stripping tags to display plain text or applying custom formatting.
- Data Processing: Preparing data for storage or further manipulation.
Methods to Replace HTML Tags
1. Using Regular Expressions
Regular expressions (regex) provide a powerful way to search and manipulate strings, including replacing HTML tags. You can use the replace
method in JavaScript strings along with a regex pattern to achieve this.
Example:
const htmlString = "<div>Hello <strong>World</strong>! Welcome to <a href='#'>JavaScript</a>.</div>";
// Remove HTML tags using regex
const cleanString = htmlString.replace(/<[^>]*>/g, '');
console.log(cleanString); // Output: "Hello World! Welcome to JavaScript."
Explanation:
- The regex pattern
<[^>]*>
matches any HTML tag. <
indicates the start of a tag.[^>]*
matches any…