Markdown Heading Regex Pattern
Matches Markdown headings H1-H6. Captures the level (number of #) and heading text.
Live Regex Tester
Pattern Breakdown
Code Examples
JavaScript
const regex = /^(#{1,6})\s+(.+)$/gm;
const test = "## My Heading";
console.log(regex.test(test)); // true
// Extract matches
const matches = test.match(regex);
console.log(matches);Python
import re
pattern = r'^(#{1,6})\s+(.+)$'
test = "## My Heading"
match = re.findall(pattern, test)
print(match) # Found!Go
package main
import (
"fmt"
"regexp"
)
func main() {
re := regexp.MustCompile(`^(#{1,6})\s+(.+)$`)
fmt.Println(re.MatchString("## My Heading")) // true
}Common Use Cases
Match Examples
| Input | Result |
|---|---|
| ## My Heading | Match |
| ####### H7 | No Match |
About the Markdown Heading Regex
Matches Markdown headings H1-H6. Captures the level (number of #) and heading text.
Regular expressions (regex) are powerful pattern matching tools used across virtually all programming languages. The markdown heading pattern is classified as beginner difficulty in the text & strings category. It works in all major programming languages.
When using this regex, always consider edge cases and test thoroughly with real-world data. Use the interactive tester above to validate the pattern against your specific inputs before deploying to production.
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Frequently Asked Questions
What is the Markdown Heading regex pattern?
Matches Markdown headings H1-H6. Captures the level (number of #) and heading text.
How do I use the Markdown Heading regex?
Use the pattern /^(#{1,6})\s+(.+)$/gm in your code. In JavaScript: new RegExp('^(#{1,6})\s+(.+)$', 'gm'). Test it above with your own input.
What does this Markdown Heading regex match?
This pattern matches: "## My Heading". It does NOT match: "####### H7". Table of contents generation, document structure analysis.
Is the Markdown Heading regex beginner-friendly?
This pattern is rated Beginner. It uses basic regex syntax and is easy to understand.
What languages support the Markdown Heading regex?
This pattern works in all major programming languages including JavaScript, Python, Java, C#, Go, Ruby, PHP, and more. Syntax may vary slightly between regex engines.
Can I modify the Markdown Heading regex for my use case?
Yes! Use the interactive tester above to modify the pattern and test with your own data. Common modifications include making it case-insensitive (add 'i' flag), matching globally (add 'g' flag), or adjusting character classes.
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