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How to Capture Multiline Text Within HTML Tags using JavaScript Regex?

Susan Sarandon
Release: 2024-11-09 22:07:02
Original
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How to Capture Multiline Text Within HTML Tags using JavaScript Regex?

JavaScript Regex: Multiline Text Extraction Between Tags

In this scenario, you aim to retrieve the text within an HTML

tag using a regular expression pattern. However, you are encountering issues with multiline text, specifically when the text contains newlines ("n").

Your provided pattern is:

/<div>
Copy after login
Copy after login
Copy after login

But it's failing to capture multiline text properly.

Solution

The issue lies in the default behavior of the dot (.) metacharacter in JavaScript. By default, . does not match newlines. To resolve this, you can use the /s (dotAll) modifier, which enables . to match newlines as well.

However, JavaScript did not support the /s modifier in older versions. Instead, you can use the following workaround:

/<div>
Copy after login
Copy after login
Copy after login

where:

  • [sS]* matches any character, including newlines (n)

As of ES2018, JavaScript introduced the /s (dotAll) flag. You can now use this flag directly, simplifying the pattern to:

/<div>
Copy after login
Copy after login
Copy after login

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