I'm having difficulty understanding Regex logic, and I do not think codes that make up the complete phone mask with DDI, DDD, and 8- and 9-digit phones with hyphen changes when typing right in the field using for example the onkeyup event .
Follow the mask +99 (99) 9999-9999 or +99 (99) 99999-9999
You can use the following expression:
/^(?:\+)[0-9]{2}\s?(?:\()[0-9]{2}(?:\))\s?[0-9]{4,5}(?:-)[0-9]{4}$/
Difficult to understand? It was generated using the Simple Regex Language tool:
begin with literally "+",
digit exactly 2 times,
whitespace optional,
literally "(", digit exactly 2 times, literally ")",
whitespace optional,
digit between 4 and 5 times,
literally "-",
digit exactly 4 times,
must end
I believe it's self-explanatory in this way.
See working here .
The regex below holds the mask you need
var RegExp = /\+\d{2}\s\(\d{2}\)\s\d{4,5}-?\d{4}/g;
var t = "+99 (99) 99999-9999";
RegExp.test(t); //true
var t2 = "+99 (99) 9999-9999";
RegExp.test(t2); //true
var t3 = "+99 (99) 999999-9999";
RegExp.test(t3); //false
You can do this as follows:
var regExp = /^\+?\d{2}?\s*\(\d{2}\)?\s*\d{4,5}\-?\d{4}$/g;
var telefone = '+55 (55) 23321-5454';
var resultado = regExp.test(telefone); //retorna true ou false