I have a problem to re-adapt this function in JS.
function mcc(v){
v=v.replace(/\D/g,"");
v=v.replace(/^(\d{4})(\d)/g,"$1 $2");
v=v.replace(/^(\d{4})\s(\d{4})(\d)/g,"$1 $2 $3");
v=v.replace(/^(\d{4})\s(\d{4})\s(\d{4})(\d)/g,"$1 $2 $3 $4");
return v;
}
Basically it adds a ('space') to every 4 digits. I'd like to add a period instead of space.
What should I change?
The code below:
Allows only digits;
Place one dot every 4 characters;
Remove the dot if it is left over;
Size limits;
function mcc(v){
v = v.replace(/\D/g,""); // Permite apenas dígitos
v = v.replace(/(\d{4})/g, "$1."); // Coloca um ponto a cada 4 caracteres
v = v.replace(/\.$/, ""); // Remove o ponto se estiver sobrando
v = v.substring(0, 19)// Limita o tamanho
return v;
}
console.log(mcc("12341234123412341"))You do not need to have so many conditions for different scenarios.
You can simplify and do this:
function mcc(v) {
v = v.replace(/\D/g, "");
return v.match(/\d{1,4}/g).join('.');
}
const testes = ['3 3 3', '333333333333', '33333'];
console.log(JSON.stringify(testes.map(mcc))); Using% w / w, the regex will look for groups from 1 to 4 and \d{1,4}/g joins these pieces with .join('.'); .