To identify if a string is in camelCase, you can use a regular expression to check the format of the string. In JavaScript, you can use the test() method of the regular expression to see if the string matches the camelCase pattern.

Here's a function that checks if a given string is in camelCase:

function isCamelCase(str) { // Check if the string matches the camelCase pattern return /^[a-z][a-zA-Z0-9]*$/.test(str); }

Explanation of the regular expression ^[a-z][a-zA-Z0-9]*$:

  • ^: Start of the string.
  • [a-z]: Matches a lowercase letter.
  • [a-zA-Z0-9]*: Matches zero or more occurrences of letters (both uppercase and lowercase) and digits.
  • $: End of the string.

The function will return true if the input string is in camelCase and false otherwise.

Here are some examples of how the function behaves:

console.log(isCamelCase("helloWorld")); // true console.log(isCamelCase("HelloWorld")); // false (starts with an uppercase letter) console.log(isCamelCase("hello_world")); // false (contains an underscore) console.log(isCamelCase("123hello")); // false (starts with a digit) console.log(isCamelCase("camelCase123")); // true

Please note that this function checks for basic camelCase format, where the string starts with a lowercase letter and contains only letters (both upper and lower case) and digits. If you have specific requirements or conventions for camelCase in your application, you may need to adjust the regular expression accordingly.

Have questions or queries?
Get in Touch