Javascript Regex - What to use to validate a phone number?

Question

Could anyone tell me what RegEx would work to validate an international phone number including white space between the numbers and also allowing for these chars: - ( )

Answer 1

Try this code

HTML Code

JS Code

$("#phone").blur(function() {
  var regexp = /^[\s()+-]*([0-9][\s()+-]*){6,20}$/
  var no = $("#phone").val();
  if (!regexp.test(no) && no.length < 0) {
    alert("Wrong phone no");
  }
});