https://www.combi.co.jp/js/sys/display_pwd.js

1var ecblib = ecblib || {};
2ecblib.display_pwd = ecblib.display_pwd || {};
3
4(function () {
5    var _display_pwd = ecblib.display_pwd;
6    
7    _display_pwd.displayPwd = displayPwd;
8
9    window.addEventListener('pageshow', function () {
10        jQuery('.js-displaypwd-password').attr('type','password');
11        jQuery('.fa-eye, .fa-eye-slash').removeClass('fa-eye').addClass('fa-eye-slash');
12    });
13
14    function displayPwd(id){
15        var type = jQuery(id).attr('type');
16        var closestDisplayPwd = jQuery(id).siblings('span.display-pwd');
17
18        if(type == 'password'){
19            jQuery(id).attr('type','text');
20            closestDisplayPwd.removeClass('fa-eye-slash').addClass('fa-eye');
21        }else{
22            jQuery(id).attr('type','password');
23            closestDisplayPwd.removeClass('fa-eye').addClass('fa-eye-slash');
24        }
25    }
26}());