diff --git a/String/CheckCamelCase.js b/String/CheckCamelCase.js new file mode 100644 index 000000000..a53bd8857 --- /dev/null +++ b/String/CheckCamelCase.js @@ -0,0 +1,20 @@ +// CheckCamelCase method checks the given string is in camelCase or not. + +// Problem Source & Explanation: https://en.wikipedia.org/wiki/Camel_case + +/** + * CheckCamelCase method returns true if the string in camelCase, else return the false. + * @param {String} varName the name of the variable to check. + * @returns `Boolean` return true if the string is in camelCase, else return false. + */ +const CheckCamelCase = (varName) => { + // firstly, check that input is a string or not. + if (typeof varName !== 'string') { + return 'Not string(s)' + } + + const pat = /^[a-z][A-Za-z]*$/ + return pat.test(varName) +} + +module.exports = CheckCamelCase