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parzibyte/es_letra.js

Created October 3, 2019 17:15
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es_letra.js
/**
* Saber si un carácter es una letra de la A a la Z
* con JavaScript
*
* https://parzibyte.me/blog
*
*/
const esLetra = (caracter) => {
let ascii = caracter.toUpperCase().charCodeAt(0);
return ascii > 64 && ascii < 91;
};
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