JSFiddle - React, Tailwind, and code Playground
by Sahin Deniz
JavaScript
var pCL = 'a-zA-ZáàâäãåçéèêëíìîïñóòôöõúùûüýÿæœÁÀÂÄÃÅÇÉÈÊËÍÌÎÏÑÓÒÔÖÕÚÙÛÜÝŸÆŒ';
var re = new RegExp(`[${pCL}][${pCL}' ,"-]*[${pCL}'",]+`);
console.log(re);
by Sahin Deniz
var pCL = 'a-zA-ZáàâäãåçéèêëíìîïñóòôöõúùûüýÿæœÁÀÂÄÃÅÇÉÈÊËÍÌÎÏÑÓÒÔÖÕÚÙÛÜÝŸÆŒ';
var re = new RegExp(`[${pCL}][${pCL}' ,"-]*[${pCL}'",]+`);
console.log(re);