https://www.askhys.net/js/LGAN/lgan.validate-1.0.js?v=2un4_yaw0mYEMQlyxh9jEMi_5ujK1bNzESRCrOkAbtE

1// ReSharper disable once UnusedParameter
2(function (lgan, $, undefined) {
3  "use strict";
4
5  let growl;
6  const onSuccess = [];
7  const onFail = [];
8
9  const validate = lgan.Class.extend({
10    init: function (useGrowl) {
11      const me = this;
12
13      growl = useGrowl || true;
14
15      me.checks = [];
16      me.list = $("<ul><ul>");
17
18      me.e = $("#errors").hide().addClass("ui-widget").append(
19        $("<div class='ui-state-error ui-corner-all'></div>")
20          .append("<span class='ui-icon ui-icon-alert' style='float: left; margin-right: .3em;'></span><strong>Error:</strong>")
21          .append(me.list)
22      );
23
24      return this;
25    },
26
27    growl: function (useGrowl) {
28      growl = useGrowl;
29
30      return this;
31    },
32
33    onSuccess: function (success) {
34      if (typeof success === "function") {
35        onSuccess.push(lgan.createBoundedWrapper(this, success));
36      }
37
38      return this;
39    },
40
41    onFail: function (fail) {
42      if (typeof fail === "function") {
43        onFail.push(lgan.createBoundedWrapper(this, fail));
44      }
45
46      return this;
47    },
48
49    add: function (title, message, method, stickiness) {
50      const v = {stickiness: stickiness};
51
52      if (typeof title === "function") {
53        v.method = title;
54      }
55
56      if (typeof title === "string" && typeof message === "function") {
57        v.message = title;
58        v.method = message;
59      }
60
61      if (typeof title === "string" && typeof message === "string" && typeof method === "function") {
62        v.title = title;
63        v.message = message;
64        v.method = method;
65      }
66
67      this.checks.push(v);
68
69      return this;
70    },
71
72    empty: function () {
73      this.checks = [];
74    },
75
76    validate: function (success, fail) {
77      let me = this,
78        isValid = true;
79
80      me.onSuccess(success).onFail(fail);
81
82      me.list.empty();
83
84      if (me.checks.length > 0) {
85        let ar = [], check;
86
87        let iCheck = 0, lCheck = me.checks.length;
88        for (; iCheck < lCheck; iCheck++) {
89          check = me.checks[iCheck];
90          ar[iCheck] = check.method();
91          isValid = isValid && ar[iCheck];
92
93          if (!ar[iCheck] && check.message) {
94            if (growl) {
95              lgan.growl("error", check.message, check.title || "Validation Error", check.stickiness);
96            } else {
97              me.list.append("<li>" + check.message + "</li>");
98            }
99          }
100        }
101      }
102
103      if (isValid) {
104        me.e.hide();
105
106        if (onSuccess.length > 0) {
107          let iSuc = 0, lSuc = onSuccess.length;
108          for (; iSuc < lSuc; iSuc++) {
109            onSuccess[iSuc]();
110          }
111        }
112      } else {
113        if (!growl) {
114          me.e.show();
115        }
116
117        if (onFail.length > 0) {
118          let iFail = 0, lFail = onFail.length;
119          for (; iFail < lFail; iFail++) {
120            onFail[iFail]();
121          }
122        }
123      }
124
125      return isValid;
126    }
127  });
128
129  lgan.ns({Validate: validate});
130}(window.lgan = window.lgan || {}, jQuery));
131
132