10 examples of 'first name validation in javascript' in JavaScript

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53validateDisplayName(): void {
54
55 if (this.signup.displayName) {
56 if (!Patterns.DisplayName.test(this.signup.displayName)) {
57 this.setError('Please provide a valid display name');
58 this.signup.displayNameValidated = false;
59 return;
60 } else {
61 this.setError('');
62 this.signup.displayNameValidated = true;
63 }
64 }
65}
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88function validateName()
89{
90 if($('#name').val().length == 0)
91 {
92 return;
93 }
94
95 if(customObject)
96 {
97 if($('#name').val().toLowerCase() == customObject.name.toLowerCase())
98 {
99 $('#name_availability_button').attr('class', 'btn btn-success');
100 $('#name_availability_button').html('<i class="fa fa-check"></i>&nbsp;' + loc.generic.AVAILABLE);
101 return;
102 }
103 }
104
105 $.getJSON('/api/custom_objects/get_object_type_name_available?name=' + $('#name').val(), function(response)
106 {
107 if(response.code == 0)
108 {
109 if(response.data)
110 {
111 $('#name_availability_button').attr('class', 'btn btn-success');
112 $('#name_availability_button').html('<i class="fa fa-check"></i>&nbsp;' + loc.generic.AVAILABLE);
113 }
114 else
115 {
116 $('#name_availability_button').attr('class', 'btn btn-danger');
117 $('#name_availability_button').html('<i class="fa fa-ban"></i>&nbsp;' + loc.generic.UNAVAILABLE);
118 }
119 }
120 });
121}
175validate_name(value)
176{
177 const { translate } = this.props
178
179 if (!value)
180 {
181 return translate(messages.registration_name_is_required)
182 }
183}
118function on_validation(name, value) {
119 switch (name) {
120 case 'name':
121 case 'street':
122 case 'city':
123 return value.length > 0;
124 case 'email':
125 return value.isEmail();
126 case age:
127 // The value will be always Number (The framework compares types)
128 return value > 18 && value < 60;
129 }
130}
10function validateUsername() {
11 var username = $('#username').val();
12 console.log(username);
13
14 if (username.match(nameRegex) != null) {
15 if (username.length <= 8) {
16 window.location.replace('/chat/' + username);
17 } else {
18 alert("Username is not valid. Maximum 8 characters allowed.");
19 }
20 } else {
21 alert("Username is not valid. Only characters letters, numbers and '_' are acceptable.");
22 }
23};
6function get_firstname(){
7 return $("#First_Name").val();
8}
48hasFirstNameError() {
49 return this.form.hasTextBoxError(FIRSTNAME_FIELD);
50}
44validateLastName() {
45 return this.lastName.invalid && this.lastName.touched
46}
69get firstName() {
70 return this.regFormGroup.get('full_name');
71}
13function validate()
14{
15 $('#id_password').removeClass("is-invalid");
16 $('#id_password1').removeClass("is-invalid");
17 $('#id_password2').removeClass("is-invalid");
18 $('#id_email').removeClass("is-invalid");
19
20 if ($("#id_username")[0].value == "" || $("#id_password")[0].value.length == 0)
21 return false;
22
23 $("#id_email").val($("#id_email")[0].value.toLowerCase());
24 if (!utils.ValidateEmail($("#id_email")[0].value))
25 {
26 $('#id_email').addClass("is-invalid");
27 return false;
28 }
29
30 if ($("#id_password1")[0].value != $("#id_password2")[0].value)
31 {
32 $('#id_password2').addClass("is-invalid");
33 return false;
34 }
35
36 return true;
37}

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