{"id":10858,"date":"2013-11-12T16:47:00","date_gmt":"2013-11-12T16:47:00","guid":{"rendered":"https:\/\/kiencang.net\/2013\/11\/12\/thuoc-tinh-required-cua-the-input\/"},"modified":"2013-11-12T16:47:00","modified_gmt":"2013-11-12T16:47:00","slug":"thuoc-tinh-required-cua-the-input","status":"publish","type":"post","link":"https:\/\/kiencang.net\/thuoc-tinh-required-cua-the-input\/","title":{"rendered":"Thu\u1ed9c t\u00ednh required c\u1ee7a th\u1ebb input"},"content":{"rendered":"\n<p>Thu\u1ed9c t\u00ednh required l\u00e0 thu\u1ed9c t\u00ednh m\u1edbi trong HTML5 d\u00e0nh cho <a href=\"https:\/\/kiencang.net\/9-the-input-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u1ebb input<\/a>. T\u00e1c d\u1ee5ng c\u1ee7a required\u00a0l\u00e0 bu\u1ed9c ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i nh\u1eadp d\u1eef li\u1ec7u th\u00ec m\u1edbi g\u1eedi \u0111\u01b0\u1ee3c (submit). <\/p>\n\n\n\n<p>D\u0129 nhi\u00ean thao t\u00e1c n\u00e0y \u0111\u1ee1 cho ch\u00fang ta kh\u00e1 nhi\u1ec1u code JavaScript ho\u1eb7c PHP d\u00f9ng \u0111\u1ec3 validate c\u00e1c tr\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1ec3 tr\u1ed1ng.<\/p>\n\n\n\n<p>Code m\u1eabu:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;form action=\"#\">\n   &lt;label>H\u1ecd t\u00ean:&lt;input type=\"text\"  name=\"hoten\" <strong>required<\/strong>>&lt;\/label>\n   &lt;input type=\"submit\" value=\"G\u1eedi\">\n&lt;\/form><\/code><\/pre>\n\n\n\n<p>K\u1ebft qu\u1ea3:<\/p>\n\n\n\n<form action=\"#\"><label>H\u1ecd t\u00ean:<input name=\"hoten\" required=\"\" type=\"text\"><\/label><br><input type=\"submit\" value=\"G\u1eedi\"><\/form>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>Gi\u1edd b\u1ea1n kh\u00f4ng \u0111i\u1ec1n g\u00ec v\u00e0o tr\u01b0\u1eddng H\u1ecd t\u00ean, r\u1ed3i nh\u1ea5n n\u00fat G\u1eedi th\u1eed xem, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o ki\u1ec3u nh\u01b0 &#8220;<i>Vui l\u00f2ng \u0111i\u1ec1n v\u00e0o tr\u01b0\u1eddng n\u00e0y<\/i>&#8220;.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3<\/h2>\n\n\n\n<p>Thu\u1ed9c t\u00ednh required \u0111\u01b0\u1ee3c&nbsp;Internet Explorer 10, Firefox, Opera v\u00e0 Chrome h\u1ed7 tr\u1ee3, \u0111\u00e1ng ti\u1ebfc hi\u1ec7n Safari ch\u01b0a \u0111\u01b0a t\u00ednh n\u0103ng n\u00e0y v\u00e0o. Nh\u01b0ng t\u00f4i ngh\u0129 s\u1edbm mu\u1ed9n g\u00ec Safari c\u0169ng c\u1eadp nh\u1eadt, v\u00ec nh\u1eefng thu\u1ed9c t\u00ednh m\u1edbi c\u1ee7a input r\u1ea5t h\u1eefu \u00edch v\u1edbi ng\u01b0\u1eddi thi\u1ebft k\u1ebf v\u00e0 ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng th\u1ebb input type d\u00f9ng requried<\/h2>\n\n\n\n<p>C\u00e1c input sau \u0111\u00e2y d\u00f9ng thu\u1ed9c t\u00ednh requried:\u00a0text, <a href=\"https:\/\/kiencang.net\/radio-button-checkbox-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">checkbox, radio<\/a>,\u00a0email, password (m\u1eadt kh\u1ea9u),\u00a0search (t\u00ecm ki\u1ebfm), url, tel (s\u1ed1 \u0111i\u1ec7n tho\u1ea1i), date pickers (ch\u1ecdn ng\u00e0y th\u00e1ng), number, file.<\/p>\n\n\n\n<p><strong>C\u00e1ch d\u00f9ng<\/strong><\/p>\n\n\n\n<p>Required l\u00e0 thu\u1ed9c t\u00ednh ki\u1ec3u boolean, ngh\u0129a l\u00e0 n\u00f3 ch\u1ec9 nh\u1eadn 2 gi\u00e1 tr\u1ecb c\u00f3 ho\u1eb7c kh\u00f4ng c\u00f3. N\u1ebfu kh\u00f4ng c\u00f3 requried trong th\u1ebb input ngh\u0129a l\u00e0 kh\u00f4ng y\u00eau c\u1ea7u ph\u1ea3i nh\u1eadp \u0111\u1ee7 d\u1eef li\u1ec7u, ng\u01b0\u1ee3c l\u1ea1i n\u1ebfu c\u00f3 th\u00ec ph\u1ea3i nh\u1eadp \u0111\u1ee7 m\u1edbi \u0111\u01b0\u1ee3c Submit.<\/p>\n\n\n\n<p>C\u00f3 <a href=\"https:\/\/kiencang.net\/html-va-xhtml-giong-va-khac-nhau\/\" target=\"_blank\" rel=\"noreferrer noopener\">s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa XHTML v\u00e0 HTML<\/a>. V\u00ec XHTML kh\u00f4ng cho ph\u00e9p r\u00fat g\u1ecdn thu\u1ed9c t\u00ednh cho n\u00ean v\u1edbi XHTML ch\u00fang ta ph\u1ea3i vi\u1ebft \u0111\u1ea7y \u0111\u1ee7 nh\u01b0 sau:\u00a0<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;input required=\"required\" \/&gt;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Thu\u1ed9c t\u00ednh required l\u00e0 thu\u1ed9c t\u00ednh m\u1edbi trong HTML5 d\u00e0nh cho th\u1ebb input. T\u00e1c d\u1ee5ng c\u1ee7a required\u00a0l\u00e0 bu\u1ed9c ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i nh\u1eadp d\u1eef li\u1ec7u th\u00ec m\u1edbi g\u1eedi \u0111\u01b0\u1ee3c (submit). D\u0129 nhi\u00ean thao t\u00e1c n\u00e0y \u0111\u1ee1 cho ch\u00fang ta kh\u00e1 nhi\u1ec1u code JavaScript ho\u1eb7c PHP d\u00f9ng \u0111\u1ec3 validate c\u00e1c tr\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1ec3 tr\u1ed1ng. Code &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[235],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Thu\u1ed9c t\u00ednh required c\u1ee7a th\u1ebb input &#8226; Ki\u1ebfn c\u00e0ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiencang.net\/thuoc-tinh-required-cua-the-input\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thu\u1ed9c t\u00ednh required c\u1ee7a th\u1ebb input &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"Thu\u1ed9c t\u00ednh required l\u00e0 thu\u1ed9c t\u00ednh m\u1edbi trong HTML5 d\u00e0nh cho th\u1ebb input. T\u00e1c d\u1ee5ng c\u1ee7a required\u00a0l\u00e0 bu\u1ed9c ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i nh\u1eadp d\u1eef li\u1ec7u th\u00ec m\u1edbi g\u1eedi \u0111\u01b0\u1ee3c (submit). D\u0129 nhi\u00ean thao t\u00e1c n\u00e0y \u0111\u1ee1 cho ch\u00fang ta kh\u00e1 nhi\u1ec1u code JavaScript ho\u1eb7c PHP d\u00f9ng \u0111\u1ec3 validate c\u00e1c tr\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1ec3 tr\u1ed1ng. 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T\u00e1c d\u1ee5ng c\u1ee7a required\u00a0l\u00e0 bu\u1ed9c ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i nh\u1eadp d\u1eef li\u1ec7u th\u00ec m\u1edbi g\u1eedi \u0111\u01b0\u1ee3c (submit). D\u0129 nhi\u00ean thao t\u00e1c n\u00e0y \u0111\u1ee1 cho ch\u00fang ta kh\u00e1 nhi\u1ec1u code JavaScript ho\u1eb7c PHP d\u00f9ng \u0111\u1ec3 validate c\u00e1c tr\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1ec3 tr\u1ed1ng. 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