{"id":26827,"date":"2017-09-10T13:20:40","date_gmt":"2017-09-10T10:20:40","guid":{"rendered":"http:\/\/kamil-abzalov.com\/tutorials\/angular-js-form-validation\/"},"modified":"2020-04-09T23:37:11","modified_gmt":"2020-04-09T20:37:11","slug":"angular-js-form-validation","status":"publish","type":"post","link":"https:\/\/kamil-abzalov.com\/en\/tutorials\/javascript\/angular-js-form-validation\/","title":{"rendered":"Angular js. Form validation"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_fullwidth_header title=&#8221;Angular js. Form validation&#8221; content_max_width=&#8221;none&#8221; _builder_version=&#8221;3.16&#8243; button_one_letter_spacing_hover=&#8221;0&#8243; button_two_letter_spacing_hover=&#8221;0&#8243; button_one_text_size__hover_enabled=&#8221;off&#8221; button_two_text_size__hover_enabled=&#8221;off&#8221; button_one_text_color__hover_enabled=&#8221;off&#8221; button_two_text_color__hover_enabled=&#8221;off&#8221; button_one_border_width__hover_enabled=&#8221;off&#8221; button_two_border_width__hover_enabled=&#8221;off&#8221; button_one_border_color__hover_enabled=&#8221;off&#8221; button_two_border_color__hover_enabled=&#8221;off&#8221; button_one_border_radius__hover_enabled=&#8221;off&#8221; button_two_border_radius__hover_enabled=&#8221;off&#8221; button_one_letter_spacing__hover_enabled=&#8221;on&#8221; button_one_letter_spacing__hover=&#8221;0&#8243; button_two_letter_spacing__hover_enabled=&#8221;on&#8221; button_two_letter_spacing__hover=&#8221;0&#8243; button_one_bg_color__hover_enabled=&#8221;off&#8221; button_two_bg_color__hover_enabled=&#8221;off&#8221;][\/et_pb_fullwidth_header][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;0px|||&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_dcsbcm_divi_breadcrumbs_module homebreadcrumbtext=&#8221;Home&#8221; hide_currentbreadcrumb=&#8221;off&#8221; _builder_version=&#8221;4.4.2&#8243; custom_padding=&#8221;0px|||&#8221; hover_enabled=&#8221;0&#8243; fontsbreadcrumbs_font_size_tablet=&#8221;51&#8243; fontsbreadcrumbs_line_height_tablet=&#8221;2&#8243; fontsseperator_font_size_tablet=&#8221;51&#8243; fontsseperator_line_height_tablet=&#8221;2&#8243; fontsbreadcrumblinks_font_size_tablet=&#8221;51&#8243; fontsbreadcrumblinks_line_height_tablet=&#8221;2&#8243;][\/et_pb_dcsbcm_divi_breadcrumbs_module][et_pb_text _builder_version=&#8221;3.27.4&#8243; border_style=&#8221;solid&#8221;]In this tutorial we will consider form validation with angular. The main advantage of using angular to validate form is simplicity and fast implementation.<br \/>\n[\/et_pb_text][et_pb_video src=&#8221;https:\/\/www.youtube.com\/watch?v=DRYdpLI88jE&#8221; _builder_version=&#8221;3.0.72&#8243;][\/et_pb_video][et_pb_text _builder_version=&#8221;3.27.4&#8243; border_style=&#8221;solid&#8221;]While making validation you need some important steps. First of all you need to add name attribute to form. After form will be available in $scope object. In fact form is instance of <a href=\"https:\/\/docs.angularjs.org\/api\/ng\/type\/form.FormController\" target=\"_blank\" rel=\"noopener noreferrer\">Form Controller<\/a>. Next we must add name attribute to form input fields. After the will be available inside  form object in $scope object. See image below.<br \/>\n[\/et_pb_text][et_pb_image src=&#8221;http:\/\/kamil-abzalov.com\/wp-content\/uploads\/2017\/09\/input-fields.png&#8221; show_in_lightbox=&#8221;on&#8221; align_tablet=&#8221;center&#8221; align_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;3.23&#8243; border_style=&#8221;solid&#8221; sticky=&#8221;off&#8221; always_center_on_mobile=&#8221;on&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;3.27.4&#8243; border_style=&#8221;solid&#8221;]Fields have got several important angular properties which use while form validation. Each of them can be true or false. See code example below.<br \/>\n[\/et_pb_text][et_pb_dmb_code_snippet title=&#8221;Angular \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u043f\u043e\u043b\u0435\u0439&#8221; code=&#8221;Y29uc29sZS5sb2coItCh0L7QtNC10YDQttC40LzQvtC1INC\/0L7Qu9GPINCy0LDQu9C40LTQvdC+PyAiICsgJHNjb3BlLmFkZFBsYXllckZvcm0ucE5hbWUuJHZhbGlkKTsKY29uc29sZS5sb2coItCf0L7Qu9GM0LfQvtCy0LDRgtC10LvRjCDQvdC1INCy0LfQsNC40LzQvtC00LXQudGB0YLQstC+0LLQsNC7INGBINC\/0L7Qu9C10Lw\/ICIgKyAkc2NvcGUuYWRkUGxheWVyRm9ybS5wTmFtZS4kdW50b3VjaGVkKTsKY29uc29sZS5sb2coItCf0L7Qu9GM0LfQvtCy0LDRgtC10LvRjCDQstC30LDQuNC80L7QtNC10LnRgdGC0LLQvtCy0LDQuyDRgSDQv9C+0LvQtdC8PyAiICsgJHNjb3BlLmFkZFBsYXllckZvcm0ucE5hbWUuJHRvdWNoZWQpOwpjb25zb2xlLmxvZygi0JfQvdCw0YfQtdC90LjQtSAo0YHQvtC00LXRgNC20LjQvNC+0LUpINC\/0L7Qu9GPINC10YnQtSDQvdC1INC80LXQvdGP0LvQvtGB0Yw\/ICIgKyAkc2NvcGUuYWRkUGxheWVyRm9ybS5wTmFtZS4kcHJpc3RpbmUpOwpjb25zb2xlLmxvZygi0JfQvdCw0YfQtdC90LjQtSAo0YHQvtC00LXRgNC20LjQvNC+0LUpINC\/0L7Qu9GPINC80LXQvdGP0LvQvtGB0Yw\/ICIgKyAkc2NvcGUuYWRkUGxheWVyRm9ybS5wTmFtZS4kZGlydHkpOwpjb25zb2xlLmxvZygi0KHQvtC00LXRgNC20LjQvNC+0LUg0L\/QvtC70Y8g0L3QtSDQstCw0LvQuNC00L3Qvj8gIiArICRzY29wZS5hZGRQbGF5ZXJGb3JtLnBOYW1lLiRpbnZhbGlkKTs=&#8221; admin_label=&#8221;Angular \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u043f\u043e\u043b\u0435\u0439&#8221; style=&#8221;docco&#8221; linenums=&#8221;on&#8221; usetabwidth=&#8221;on&#8221; tabwidth=&#8221;4&#8243; _builder_version=&#8221;3.0.72&#8243;]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[\/et_pb_dmb_code_snippet][et_pb_text _builder_version=&#8221;3.27.4&#8243; border_style=&#8221;solid&#8221;]Using these properties, we can validate our form. In our example we will check if fields  are required. Approach is we will check propeties on boolean values. For example, we will add ng-disabled directive and it will act only when one of the field is not valid.<br \/>\n[\/et_pb_text][et_pb_dmb_code_snippet title=&#8221;Code lesson&#8221; 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The main advantage of using angular to validate form is simplicity and fast implementation. While making validation you need some important steps. First of all you need to add name attribute to form. After form will be available in $scope object. In fact form is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[256,219],"tags":[278,230,229],"class_list":["post-26827","post","type-post","status-publish","format-standard","hentry","category-javascript","category-tutorials","tag-angular-en","tag-javascript-en","tag-js-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Angular js. Form validation - Kamil Abzalov&#039;s blog<\/title>\n<meta name=\"description\" content=\"Angular has build-in capabilities form forms validation. The main advantage of rom validation with angular is simplicity and fast implementation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kamil-abzalov.com\/videouroki\/javascript\/angularjs-form-validation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Angular js. Form validation - Kamil Abzalov&#039;s blog\" \/>\n<meta property=\"og:description\" content=\"Angular has build-in capabilities form forms validation. The main advantage of rom validation with angular is simplicity and fast implementation.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kamil-abzalov.com\/videouroki\/javascript\/angularjs-form-validation\/\" \/>\n<meta property=\"og:site_name\" content=\"\u0441\u0430\u0439\u0442 \u041a\u0430\u043c\u0438\u043b\u044f \u0410\u0431\u0437\u0430\u043b\u043e\u0432\u0430\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/kamabzalov\" \/>\n<meta property=\"article:published_time\" content=\"2017-09-10T10:20:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-04-09T20:37:11+00:00\" \/>\n<meta name=\"author\" content=\"Kamil&#039; Abzalov\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Angular js. Form validation\" \/>\n<meta name=\"twitter:description\" content=\"Angular has build-in capabilities form forms validation. The main advantage of rom validation with angular is simplicity and fast implementation.\" \/>\n<meta name=\"twitter:creator\" content=\"@kamabzalov\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kamil&#039; Abzalov\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/kamil-abzalov.com\\\/videouroki\\\/javascript\\\/angularjs-form-validation\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/kamil-abzalov.com\\\/videouroki\\\/javascript\\\/angularjs-form-validation\\\/\"},\"author\":{\"name\":\"Kamil' Abzalov\",\"@id\":\"https:\\\/\\\/kamil-abzalov.com\\\/#\\\/schema\\\/person\\\/9c53360f21b83306ba40c2231573c600\"},\"headline\":\"Angular js. 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