String & Regex#validation#null

Nullable String

Null-like string values.

Nullable String

string

Null-like string values.

#validation#null
ts
const isValid = (s: string): boolean => /^(null|nil|none|undefined|)$/.test(s);

How to Use

This nullable string validator can be used in your project by following these simple steps:

  1. Select your preferred programming language from the code block above
  2. Click the "Copy" button to copy the code to your clipboard
  3. Paste the code into your project file
  4. Customize the parameters as needed for your specific use case
  5. Test the validator with sample inputs before deploying to production

About This Validator

The nullable string is a common validation requirement in modern software development. This implementation follows industry best practices and is optimized for both performance and accuracy. The code is MIT licensed and free to use in personal and commercial projects.

Available in multiple programming languages including TypeScript, JavaScript, Python, Go, and PHP, this validator can be integrated into virtually any tech stack. Each implementation maintains consistent logic and behavior across languages.

Related Validators

Is Empty String

Checks if string is empty or whitespace only.

Capitalize String

Capitalizes first letter of string.

Truncate String

Truncates string with ellipsis.

Slugify String

Converts string to URL-friendly slug.