JS substitui os diacríticos
// this will keep symbols
console.log( "âîÂșț12@.".normalize('NFD').replace(/[\u0300-\u036f]/g, "") );
//output: aiAst12@.
console.log( "âîÂșț12@.".normalize('NFKD').replace(/[^\w]/g, '') );
// output: aiAst12
Wicked Wolf