showing results for - "how to check if a string is alphabetic in javascript"
Carmen
21 Jul 2017
1function isLetter(str) {
2  return str.length === 1 && str.match(/[a-z]/i);
3}
Till
06 Sep 2019
1function isAlphaOrParen(str) {
2  return /^[a-zA-Z()]+$/.test(str);
3}
4
5/*/^[a-zA-Z()]*$/ - also returns true for an empty string
6/^[a-zA-Z()]$/ - only returns true for single characters.
7/^[a-zA-Z() ]+$/ - also allows spaces*/
8//better regEX to include question marks too
Lucie
08 Sep 2017
1function isAlphaOrParen(str) {
2  return /^[a-zA-Z()]+$/.test(str);
3}
4
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