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Snippet Library.

Validate Semantic Version String (SemVer)

Master regex for validating semantic version strings (SemVer) like 1.0.0, 1.0.0-alpha, or 1.0.0-rc.1+build.234, crucial for version control and package management.

Replace Multiple Spaces with Single Space

Clean up user input or textual data by replacing all sequences of one or more whitespace characters with a single space using regex in JavaScript.

Extract Image Source (src) URLs from HTML

Learn how to parse an HTML string with regex to find and extract all `src` attribute values from `<img>` tags for image processing or indexing.

Convert Snake_Case to PascalCase

Transform strings from `snake_case` to `PascalCase` using a powerful regex pattern, perfect for naming conventions in programming languages like JavaScript.

Remove HTML Tags from String

Learn how to effectively strip all HTML tags from a given string using a simple JavaScript regex pattern, useful for cleaning user-generated content for display.

Convert Kebab-case to CamelCase

Transform kebab-case strings (e.g., 'font-size') into camelCase (e.g., 'fontSize') using JavaScript regex, essential for dynamic CSS property handling or object key conversions.

Extract All Numbers from a String

Learn to extract all sequences of digits from any string using a JavaScript regex, perfect for parsing IDs, numerical data, or cleaning user input.

Validate Hex Color Code Format

Ensure user input for colors is in a valid hexadecimal format (e.g., #RRGGBB, #RGB) using a concise JavaScript regex pattern, ideal for form validation.

Extract All Hashtags from String

Automatically find and extract all hashtags (e.g., #webdev, #javascript) from text using a powerful JavaScript regex, perfect for social media features.

Validate Email Address Format

A robust JavaScript regex snippet to accurately validate common email address formats, ensuring correct syntax for user inputs in web forms and applications.

Validate URL Format

Validate URLs including http/https protocols, optional www, domains, paths, queries, and fragments using a comprehensive JavaScript regex pattern for web applications.

Validate Password Strength (Min 8 chars, 1 Upper, 1 Lower, 1 Number, 1 Special)

Enforce strong password policies with a JavaScript regex requiring minimum length, uppercase, lowercase, numbers, and special characters for enhanced user security.