30-seconds-of-code/snippets/isAlpha.md

title, tags, firstSeen, lastUpdated

title	tags	firstSeen	lastUpdated
isAlpha	string,regexp,beginner	2020-12-31T14:01:42+02:00	2020-12-31T14:01:42+02:00

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'); // false