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String is alpha
JavaScript, String, Regexp · Dec 31, 2020
Checks if a string contains only alpha characters.
- Use
RegExp.prototype.test()to check if the given string matches against the alphabetic regexp pattern.
const isAlpha = str => /^[a-zA-Z]*$/.test(str);isAlpha('sampleInput'); // true
isAlpha('this Will fail'); // false
isAlpha('123'); // falseMore like this
String is alphanumeric
JavaScript, String
Checks if a string contains only alphanumeric characters.
Check if string contains whitespace
JavaScript, String
Checks if the given string contains any whitespace characters.
String is anagram
JavaScript, String
Checks if a string is an anagram of another string (case-insensitive, ignores spaces, punctuation and special characters).