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Remove all non alphabetic chars from string in Javascript


To remove all non-alphanumeric characters from a string, call the replace() method, passing it a regular expression that matches all non-alphanumeric characters as the first parameter and an empty string as the second. The replace method returns a new string with all matches replaced.

remove non letters from a string javascript

// remove non-letters from a string
function lettersOnly(str) {
	return str.replace(/[^a-zA-Z]/g,"");
   //or return str.match(/[a-z]/gi).join('');
   //or return str.replace(/[^a-z]/gi,""); 
}

console.log(lettersOnly("R!=:~0o0./c&}9k`60=y"));		//"Rocky"
console.log(lettersOnly("^,]%4B|@56a![0{2m>b1&4i4"));	//"Bambi"
console.log(lettersOnly("^U)6$22>8p)."));				//"Up"

const str = 'A!@#b$%^c&*(';

const replaced = str.replace(/[^a-z0-9]/gi, '');
console.log(replaced); // 👉️ Abc


Conclusion

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