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String Checkers

isCamelCase​

Checks if a string follows the camelCase format.

Function Signature​

isCamelCase(str: string): boolean;

Parameters​

  • str: The string to check.

Returns​

Returns true if the string is in camelCase, otherwise false.

Example​

isCamelCase('camelCase'); // true
isCamelCase('CamelCase'); // false

isPascalCase​

Checks if a string follows the PascalCase format.

Function Signature​

isPascalCase(str: string): boolean;

Parameters​

  • str: The string to check.

Returns​

Returns true if the string is in PascalCase, otherwise false.

Example​

isPascalCase('PascalCase'); // true
isPascalCase('pascalCase'); // false

isSnakeCase​

Checks if a string follows the snake_case format.

Function Signature​

isSnakeCase(str: string): boolean;

Parameters​

  • str: The string to check.

Returns​

Returns true if the string is in snake_case, otherwise false.

Example​

isSnakeCase('snake_case'); // true
isSnakeCase('Snake_Case'); // false

isKebabCase​

Checks if a string follows the kebab-case format.

Function Signature​

isKebabCase(str: string): boolean;

Parameters​

  • str: The string to check.

Returns​

Returns true if the string is in kebab-case, otherwise false.

Example​

isKebabCase('kebab-case'); // true
isKebabCase('Kebab-Case'); // false

isPalindrome​

Checks if a string is a palindrome (reads the same backward as forward, ignoring case and non-alphanumeric characters).

Function Signature​

isPalindrome: (input: string): boolean;

Parameters​

  • input: The string to check.

Returns​

Returns true if the string is a palindrome, otherwise false.

Example​

isPalindrome('Racecar');        // true
isPalindrome('A man, a plan, a canal: Panama'); // true
isPalindrome('hello');          // false

Dependencies​

  • Uses reverseString internally to perform the reversal comparison.

isEmojiOnly​

Checks if a string contains only emojis.

Function Signature​

isEmojiOnly(str: string): boolean;

Parameters​

  • str: The input string to check.

Returns​

Returns true if the string contains only emojis, otherwise false.

Example​

isEmojiOnly('🎉🔥');     // true
isEmojiOnly('🎉 text');  // false
isEmojiOnly('');         // false

Notes​

  • This uses the Unicode \p{Emoji} property from RegExp Unicode property escapes.
  • The u flag is required for proper Unicode handling.