Question

How to check if a string is single alphabetic characters in JavaScript

Answer 1

function isAlphabetic(str) {
  	return /^[a-zA-Z()]$/.test(str);
}

console.log(isAlphabetic("j")); 
console.log(isAlphabetic("ja")); 
console.log(isAlphabetic("j ")); 
  
  
    
    
/*
run:

true
false
false
    
*/

 

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