Password match method validation javascript

Question

It doesn't work properly, I get the Password doesn't match! for each password I write with letters, numbers and Uppercase Letters

var reg = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?!.*\s).*$"/; 

var pass = document.getElementById("password").value;
if (pass == "") {
  alert("Enter the user password");
  document.getElementById("password").focus();
  return false;
}

if (pass.length < 8) {
  alert("Password too short, at least 8 characters");
  document.getElementById("password").focus();
  return false;
}
var pasw = pass.match(reg);
if (pasw) {
  alert("Password is valid");
} else {
  alert("Password doesn't match!");
  return false;
}

Could you clarify your question and properly format your post? — Nico Haase, Jan 13 '18 at 14:22
What is the output? Also use if(pass) instead of if(pass=="") as javascript coerces pass to a boolean value and if the pass is null, empty or undefined it won't enter the if loop. — loki, Jan 13 '18 at 14:24
@loki pasw is a boolean value the problem is in the last part of the code with the match method I need to get Password is valid If I write a password containing Uppercase,Lowercase and number but instead I always get Password doesn't match! — Gresa, Jan 13 '18 at 14:30
@NicoHaase I need to get Password is valid If I write a password containing Uppercase,Lowercase and number but instead I always get Password doesn't match! — Gresa, Jan 13 '18 at 14:30

Fred · Answer 1 · 2018-01-13T15:04:31.593

First, Use var reg = ^(?:(?=.*[a-z])(?:(?=.*[A-Z])(?=.*[\d\W])|(?=.*\W)(?=.*\d))|(?=.*\W)(?=.*[A-Z])(?=.*\d)).{8,}$ instead of var reg = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?!.*\s).*$"/; base on this result :

Regular expression to enforce complex passwords, matching 3 out of 4 rules

Second, Use reg.test(pass) instead of pass.match(reg).

JavaScript test() Method

The test() method tests for a match in a string. This method returns true if it finds a match, otherwise it returns false.

var str = "The best things in life are free";
var patt = new RegExp("e");
var res = patt.test(str);

Password match method validation javascript

1 Answers1