{"id":1662,"date":"2022-02-24T07:03:52","date_gmt":"2022-02-24T07:03:52","guid":{"rendered":"https:\/\/topviecit.vn\/blog\/?p=1662"},"modified":"2023-11-03T04:04:36","modified_gmt":"2023-11-03T04:04:36","slug":"json-la-gi","status":"publish","type":"post","link":"https:\/\/topviecit.vn\/blog\/json-la-gi\/","title":{"rendered":"Json L\u00e0 G\u00ec? Nh\u1eefng \u0110i\u1ec1u D\u00e2n L\u1eadp Tr\u00ecnh C\u1ea7n Bi\u1ebft V\u1ec1 JSON"},"content":{"rendered":"\n<p>L\u00e0 m\u1ed9t d\u00e2n IT th\u1ee9 thi\u1ec7t, th\u1ebf nh\u01b0ng li\u1ec7u b\u1ea1n \u0111\u00e3 hi\u1ec3u \u0111\u00fang v\u1ec1 kh\u00e1i ni\u1ec7m <strong>Json l\u00e0 g\u00ec<\/strong> v\u00e0 m\u1ed9t s\u1ed1 \u0111i\u1ec1u quan tr\u1ecdng v\u1ec1 JSON hay ch\u01b0a? N\u1ebfu ch\u01b0a th\u00ec \u0111\u1eebng b\u1ecf qua b\u00e0i vi\u1ebft h\u1eefu \u00edch m\u00e0 <strong><a href=\"http:\/\/topviecit.vn\">topviecit.vn<\/a><\/strong> mang t\u1edbi ng\u00e0y h\u00f4m nay nh\u00e9!<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/topviecit.vn\/blog\/json-la-gi\/#Json_la_gi\" title=\"Json l\u00e0 g\u00ec?\">Json l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topviecit.vn\/blog\/json-la-gi\/#Mot_so_dieu_quan_trong_dan_lap_trinh_can_biet_ve_JSON\" title=\"M\u1ed9t s\u1ed1 \u0111i\u1ec1u quan tr\u1ecdng d\u00e2n l\u1eadp tr\u00ecnh c\u1ea7n bi\u1ebft v\u1ec1 JSON\">M\u1ed9t s\u1ed1 \u0111i\u1ec1u quan tr\u1ecdng d\u00e2n l\u1eadp tr\u00ecnh c\u1ea7n bi\u1ebft v\u1ec1 JSON<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topviecit.vn\/blog\/json-la-gi\/#Cau_truc_cua_chuoi_Json_la_gi\" title=\"C\u1ea5u tr\u00fac c\u1ee7a chu\u1ed7i Json l\u00e0 g\u00ec?\">C\u1ea5u tr\u00fac c\u1ee7a chu\u1ed7i Json l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topviecit.vn\/blog\/json-la-gi\/#JSON_Synytax_cu_phap_JSON_la_gi\" title=\"JSON Synytax, c\u00fa ph\u00e1p JSON l\u00e0 g\u00ec?\">JSON Synytax, c\u00fa ph\u00e1p JSON l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topviecit.vn\/blog\/json-la-gi\/#Nhung_loai_values_hien_nay\" title=\"Nh\u1eefng lo\u1ea1i values hi\u1ec7n nay\">Nh\u1eefng lo\u1ea1i values hi\u1ec7n nay<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topviecit.vn\/blog\/json-la-gi\/#Khi_nao_nen_su_dung_Json\" title=\"Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Json?\">Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Json?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Json_la_gi\"><\/span><strong>Json l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Json l\u00e0 g\u00ec? Json l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a JavaScript Object Notation, \u0111\u00e2y l\u00e0 m\u1ed9t ki\u1ec3u \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u theo m\u1ed9t quy \u0111\u1ecbnh m\u00e0 h\u1ea7u h\u1ebft c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u1ec1u c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 \u0111\u1ecdc \u0111\u01b0\u1ee3c n\u00f3. T\u1eeb \u0111\u00e2y Json tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n m\u1edf r\u1ed9ng \u0111\u1ec3 c\u00f3 th\u1ec3 trao \u0111\u1ed5i gi\u1eef nh\u1eefng th\u00f4ng tin, d\u1eef li\u1ec7u tr\u00ean web.<\/p>\n\n\n\n<p>C\u00e1c l\u1eadp tr\u00ecnh vi\u00ean quen thu\u1ed9c v\u1ec1 Json gi\u1ed1ng nh\u01b0 quen thu\u1ed9c c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u1eb7p key \u2013 Value. N\u00f3 l\u00e0 m\u1ed9t tr\u1ee3 th\u1ee7 \u0111\u1eafc l\u1ef1c cho&nbsp; nh\u1eefng c\u1ea5u tr\u00fac d\u1eef li\u1ec7u nh\u01b0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 m\u1ea3ng.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 m\u1ed9t t\u1ec7p tin c\u00f3 t\u00ean l\u00e0 timviec_info.Json. Th\u00ec n\u1ed9i dung s\u1ebd l\u00e0:<\/p>\n\n\n\n<p>\u201cname\u201d : \u201ctimviec\u201d,<\/p>\n\n\n\n<p>\u201ctitle\u201d : \u201cVi\u1ec7c l\u00e0m IT cho d\u00e2n Developer\u201d,<\/p>\n\n\n\n<p>\u201cdescription\u201d : \u201cl\u00e0 h\u1ec7 sinh th\u00e1i bao g\u1ed3m c\u1ed9ng \u0111\u1ed3ng c\u00e1c Developer.\u201d<\/p>\n\n\n\n<p>Th\u00f4ng th\u01b0\u1eddng c\u00fa ph\u00e1p c\u1ee7a Json \u0111\u1ec1u bao g\u1ed3m 2 ph\u1ea7n ri\u00eang bi\u1ec7t, \u0111\u00f3 l\u00e0 Key v\u00e0 Value. Du m\u1ee5c \u0111\u00edch ban \u0111\u1ea7u ch\u1ec9 l\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 d\u00f9ng cho nh\u1eefng \u1ee9ng d\u1ee5ng vi\u1ebft b\u1eb1ng JavaScript Object Notation. Nh\u01b0ng th\u1ef1c t\u1ebf v\u00ec n\u00f3 l\u00e0 m\u1ed9t d\u1ea1ng \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u n\u00ean c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1eb1ng m\u1ecdi ng\u00f4n ng\u1eef.<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/\">JWT L\u00e0 G\u00ec? T\u00ecm Hi\u1ec3u V\u1ec1 C\u00e1c Th\u00e0nh Ph\u1ea7n C\u1ee7a JWT<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-33.png\" alt=\"Json l\u00e0 g\u00ec?\" class=\"wp-image-1663\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-33.png 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-33-640x400.png 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-33-768x480.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>Json l\u00e0 g\u00ec?<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mot_so_dieu_quan_trong_dan_lap_trinh_can_biet_ve_JSON\"><\/span><strong>M\u1ed9t s\u1ed1 \u0111i\u1ec1u quan tr\u1ecdng d\u00e2n l\u1eadp tr\u00ecnh c\u1ea7n bi\u1ebft v\u1ec1 JSON<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>B\u1ea1n hi\u1ec3u \u0111\u01b0\u1ee3c bao nhi\u00eau v\u1ec1 JSON v\u00e0 nh\u1eefng ki\u1ebfn th\u1ee9c xung quanh n\u00f3. C\u00f9ng ch\u00fang m\u00ecnh \u0111i t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 n\u00f3 nh\u00e9!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cau_truc_cua_chuoi_Json_la_gi\"><\/span><strong>C\u1ea5u tr\u00fac c\u1ee7a chu\u1ed7i Json l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Cho nh\u1eefng ai ch\u01b0a bi\u1ebft c\u1ea5u tr\u00fac c\u1ee7a chu\u1ed7i Json th\u1ef1c t\u1ebf c\u00f3 r\u1ea5t nhi\u1ec1u d\u1ea1ng, v\u00e0 m\u1ed9t trong s\u1ed1 \u0111\u00f3 l\u00e0 ki\u1ec3u Object nh\u01b0 Object in array v\u00e0 ki\u1ec3u nest Object.<\/p>\n\n\n\n<p>M\u1ed9t Object s\u1ebd g\u1ed3m key v\u00e0 Value, nh\u01b0ng \u0111\u00f4i khi Json c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng d\u1ea5u ngo\u1eb7c nh\u1ecdn quen thu\u1ed9c.&nbsp;<\/p>\n\n\n\n<p>Khi hi\u1ec3u v\u1ec1 c\u1ea5u tr\u00fac n\u00e0y c\u0169ng l\u00e0 l\u00fac ch\u00fang ta hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Json v\u00e0 c\u00e1c object. Th\u1ef1c s\u1ef1 th\u00ec kh\u00e1i ni\u1ec7m v\u1ec1 Object trong Json c\u0169ng g\u1ea7n t\u01b0\u01a1ng t\u1ef1 nh\u01b0 trong Javascript, v\u00e0 ch\u1ec9 c\u00f3 m\u1ed9t ch\u00fat kh\u00e1c bi\u1ec7t.<\/p>\n\n\n\n<p>C\u1ee5 th\u1ec3&nbsp; key s\u1ebd ph\u1ea3i lu\u00f4n lu\u00f4n \u0111\u1eb7t trong d\u1ea5u ngo\u1eb7c k\u00e9p v\u00e0 kh\u00f4ng c\u00f3 d\u1ea1ng bi\u1ebfn s\u1ed1. Ph\u1ea7n Value l\u00e0 numbers, string, boolean, arrays,\u2026v\u00e0 s\u1ebd kh\u00f4ng c\u00f3 d\u1ea5u ph\u1ea9y \u1edf cu\u1ed1i c\u00e2u nh\u01b0 trong Javascript.<\/p>\n\n\n\n<p>M\u1ed9t khi hi\u1ec3u \u0111\u01b0\u1ee3c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a chu\u1ed7i Json b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng n\u1ec1n t\u1ea3ng n\u00e0y m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"JSON_Synytax_cu_phap_JSON_la_gi\"><\/span><strong>JSON Synytax, c\u00fa ph\u00e1p JSON l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Mu\u1ed1n t\u1ea1o ra m\u1ed9t file Json, b\u1eaft bu\u1ed9c ng\u01b0\u1eddi d\u00f9ng c\u1ea7n ph\u1ea3i tu\u00e2n theo \u0111\u00fang c\u00fa ph\u00e1p. B\u1edfi v\u00ec ch\u00fang l\u00e0 \u0111i\u1ec1u c\u0103n b\u1ea3n nh\u1ea5t \u0111\u1ec3 s\u1eed d\u1ee5ng Json. Trong m\u1ed9t Object c\u00f3 hai y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i ch\u00ednh l\u00e0 Keys v\u00e0 Values.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Key: \u0110\u01b0\u1ee3c hi\u1ec3u l\u00e0 m\u1ed9t chu\u1ed7i k\u00fd t\u1ef1&nbsp; \u0111\u01b0\u1ee3c bao quanh b\u1edfi d\u1ea5u ngo\u1eb7c k\u00e9p.<\/li><li>Values: L\u00e0 m\u1ed9t ki\u1ec3u d\u1eef li\u1ec7u Json h\u1ee3p l\u1ec7 t\u1ed3n t\u1ea1i d\u01b0\u1edbi d\u1ea1ng array, object, chu\u1ed7i ho\u1eb7c boolean,\u2026 Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p Values c\u00f2n c\u00f3 th\u1ec3 l\u00e0 s\u1ed1 ho\u1eb7c r\u1ed7ng.<\/li><\/ul>\n\n\n\n<p>\u0110i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 t\u1ea1o m\u1ed9t file Json ch\u00ednh l\u00e0 b\u1ea1n ph\u1ea3i t\u1ea1o d\u1ef1ng m\u1ed9t object b\u1eaft \u0111\u1ea7u v\u00e0 k\u1ebft th\u00fac b\u1eb1ng d\u1ea5u ngo\u1eb7c nh\u1ecdn. N\u00f3 c\u00f3 hai chi\u1ec1u ho\u1eb7c c\u0169ng c\u00f3 th\u1ec3 l\u00e0 t\u1ed5ng h\u1ee3p nhi\u1ec1u c\u1eb7p value, key do v\u1eady b\u1ea1n ph\u1ea3i d\u00f9ng d\u1ea5u ph\u1ea9y n\u1ebfu mu\u1ed1n ph\u00e2n t\u00e1ch c\u00e1c c\u1eb7p n\u00e0y.<\/p>\n\n\n\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa key v\u00e0 value ch\u00ednh l\u00e0&nbsp; m\u1ed7i key s\u1ebd \u0111\u01b0\u1ee3c theo sau b\u1edfi d\u1ea5u hai ch\u1ea5m. V\u00ed d\u1ee5:<\/p>\n\n\n\n<p>{\u201ccity\u201d:\u201dNew York\u201d, \u201ccountry\u201d:\u201dUnited States \u201c}. Trong \u0111\u00f3, hai c\u1eb7p key\/value: city v\u00e0 country l\u00e0 keys New York v\u00e0 United States l\u00e0 values.<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/elasticsearch-la-gi-tim-hieu-ve-uu-nhuoc-diem-cua-es\/\">Elasticsearch L\u00e0 G\u00ec? T\u00ecm Hi\u1ec3u V\u1ec1 \u01afu Nh\u01b0\u1ee3c \u0110i\u1ec3m C\u1ee7a ES<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-34.png\" alt=\"\u0110\u1ec3 t\u1ea1o ra m\u1ed9t file Json ng\u01b0\u1eddi d\u00f9ng c\u1ea7n ph\u1ea3i tu\u00e2n theo \u0111\u00fang c\u00fa ph\u00e1p \" class=\"wp-image-1664\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-34.png 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-34-640x400.png 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-34-768x480.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>\u0110\u1ec3 t\u1ea1o ra m\u1ed9t file Json ng\u01b0\u1eddi d\u00f9ng c\u1ea7n ph\u1ea3i tu\u00e2n theo \u0111\u00fang c\u00fa ph\u00e1p\u00a0<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nhung_loai_values_hien_nay\"><\/span><strong>Nh\u1eefng lo\u1ea1i values hi\u1ec7n nay<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Values c\u00f3 t\u1ea7m quan tr\u1ecdng v\u00e0 li\u00ean quan l\u1edbn t\u1edbi Object c\u1ee7a Json. V\u1eady c\u00f3 bao nhi\u00eau lo\u1ea1i values hi\u1ec7n nay, c\u00f9ng ch\u00fang m\u00ecnh \u0111i t\u00ecm hi\u1ec3u nh\u00e9!<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Array<\/li><\/ul>\n\n\n\n<p>Array \u0111\u01b0\u1ee3c bi\u1ebft t\u1edbi l\u00e0 b\u1ed9 s\u01b0u t\u1eadp values c\u00f3 th\u1ee9 t\u1ef1 nh\u1ea5t \u0111\u1ecbnh \u0111\u01b0\u1ee3c bao quanh b\u1edfi d\u1ea5u ngo\u1eb7c vu\u00f4ng khi \u1edf trong Json. Th\u00f4ng th\u01b0\u1eddng values b\u00ean trong lu\u00f4n \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1ch b\u1eb1ng d\u1ea5u ph\u1ea9y v\u00e0 ch\u1ee9a Object c\u1ee7a Json. Array ch\u00ednh l\u00e0 lo\u1ea1i Values ph\u1ed5 bi\u1ebfn nh\u1ea5t trong Json.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Object<\/li><\/ul>\n\n\n\n<p>M\u1ed9t Object c\u01a1 b\u1ea3n lu\u00f4n ch\u1ee9a c\u1ea3 value l\u1eabn key. Value s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u01b0\u1edbc d\u1ea5u hai ch\u1ea5m ho\u1eb7c d\u1ea5u ph\u1ea9y gi\u00fap ph\u00e2n bi\u1ec7t gi\u1eefa m\u1ed7i Object. B\u1edfi v\u00ec trong Json, m\u1ed7i object l\u00e0 m\u1ed9t value.&nbsp;<\/p>\n\n\n\n<p>C\u00f2n employees th\u00ec ch\u00ednh l\u00e0 key, Object n\u1eb1m trong ph\u1ea7n ngo\u1eb7c nh\u1ecdn. Hi\u1ec3u \u0111\u01b0\u1ee3c r\u00f5 quy t\u1eafc n\u00e0y c\u0169ng \u0111\u1ed3ng ngh\u0129a b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch chu\u1ea9n x\u00e1c h\u01a1n.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Chu\u1ed7i<\/li><\/ul>\n\n\n\n<p>Chu\u1ed7i l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan trong trong c\u00e1c values c\u1ee7a Json. Ch\u00fang ch\u00ednh l\u00e0&nbsp; m\u1ed9t b\u1ed9 t\u1eadp h\u1ee3p g\u1ed3m c\u00e1c s\u1ed1 0 v\u00e0 nhi\u1ec1u k\u00fd t\u1ef1 Unicode n\u1eb1m trong hai d\u1ea5u ngo\u1eb7c k\u00e9p.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>S\u1ed1<\/li><\/ul>\n\n\n\n<p>Ngo\u00e0i chu\u1ed7i ra th\u00ec s\u1ed1 c\u0169ng l\u00e0 m\u1ed9t trong c\u00e1c value. Th\u00f4ng th\u01b0\u1eddng s\u1ed1 trong Json c\u00f3 th\u1ec3 \u1edf d\u1ea1ng s\u1ed1 nguy\u00ean ho\u1eb7c s\u1ed1 th\u1ef1c. V\u00ed d\u1ee5:&nbsp;<\/p>\n\n\n\n<p>{\u201cage\u201d:\u201d30\u201d}<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Boolean<\/li><\/ul>\n\n\n\n<p>B\u1ea1n d\u00f9ng hai gi\u00e1 tr\u1ecb True ho\u1eb7c False l\u00e0m values nh\u01b0 m\u1eabu sau:<\/p>\n\n\n\n<p>{\u201cmarried\u201d:\u201dfalse\u201d)<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>R\u1ed7ng<\/li><\/ul>\n\n\n\n<p>R\u1ed7ng \u0111\u00fang nh\u01b0 t\u00ean g\u1ecdi c\u1ee7a n\u00f3, trong \u0111\u00f3 kh\u00f4ng c\u00f3 th\u00f4ng tin. Khi r\u1ed7ng l\u00e0m Value s\u1ebd l\u00e0:<\/p>\n\n\n\n<p>{\u201cbloodType\u201d:\u201dnull\u201d}<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-35.png\" alt=\"Values c\u00f3 li\u00ean quan l\u1edbn t\u1edbi Object c\u1ee7a Json\" class=\"wp-image-1665\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-35.png 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-35-640x400.png 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-35-768x480.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>Values c\u00f3 li\u00ean quan l\u1edbn t\u1edbi Object c\u1ee7a Json<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Khi_nao_nen_su_dung_Json\"><\/span><strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Json?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Th\u1eddi \u0111i\u1ec3m th\u00edch h\u1ee3p s\u1eed d\u1ee5ng Json s\u1ebd quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 hi\u1ec7u qu\u1ea3 c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng. Th\u00f4ng th\u01b0\u1eddng Json \u0111\u01b0\u1ee3c d\u00f9ng trong tr\u01b0\u1eddng h\u1ee3p c\u1ea7n l\u01b0u tr\u1eef \u0111\u01a1n thu\u1ea7n d\u01b0\u1edbi d\u1ea1ng metadata ph\u00eda server v\u00e0 c\u0169ng l\u00e0 \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho vi\u1ec7c truy\u1ec1n t\u1ea3i th\u00f4ng tin hai chi\u1ec1u.<\/p>\n\n\n\n<p>Th\u1eddi \u0111i\u1ec3m c\u00e1c d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef l\u1ea1i, Json s\u1ebd ngay l\u1eadp t\u1ee9c gi\u1ea3i m\u00e3 n\u00f3 ch\u1ec9 qua nh\u1eefng c\u00e2u l\u1ec7nh. Ph\u1ee5 thu\u1ed9c v\u00e0o ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh m\u00e0 c\u00e1c c\u00e2u l\u1ec7nh th\u01b0\u1eddng kh\u00f4ng gi\u1ed1ng nhau. C\u1ee5 th\u1ec3, v\u1edbi PHP, l\u1ec7nh json_ encode v\u00e0 json_decode s\u1ebd tr\u1ee3 gi\u00fap m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u, theo ki\u1ec3u JSOn v\u00e0 xu\u1ea5t hi\u1ec7n trong AJAX request.<\/p>\n\n\n\n<p>Qua \u0111\u00e2y ch\u00fang t\u00f4i \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n kh\u00e1i ni\u1ec7m <strong>Json l\u00e0 g\u00ec<\/strong> v\u00e0 nh\u1eefng \u0111i\u1ec1u quan tr\u1ecdng v\u1ec1 JSON. Hy v\u1ecdng th\u00f4ng tin tr\u00ean h\u1eefu \u00edch cho c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n! Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/back-end-developer-la-gi\/\">Back-End Developer L\u00e0 G\u00ec? L\u00e0m Back-End C\u1ea7n H\u1ecdc Nh\u1eefng G\u00ec?<\/a><\/p>\n\n\n\n<p class=\"has-text-align-right\"><em>H\u00ecnh \u1ea3nh: S\u01b0u t\u1ea7m<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u00e0 m\u1ed9t d\u00e2n IT th\u1ee9 thi\u1ec7t, th\u1ebf nh\u01b0ng li\u1ec7u b\u1ea1n \u0111\u00e3 hi\u1ec3u \u0111\u00fang v\u1ec1 kh\u00e1i ni\u1ec7m Json l\u00e0 g\u00ec v\u00e0 m\u1ed9t s\u1ed1 \u0111i\u1ec1u quan tr\u1ecdng v\u1ec1 JSON hay ch\u01b0a? N\u1ebfu ch\u01b0a th\u00ec \u0111\u1eebng b\u1ecf qua b\u00e0i vi\u1ebft h\u1eefu \u00edch m\u00e0 topviecit.vn mang t\u1edbi ng\u00e0y h\u00f4m nay nh\u00e9! Json l\u00e0 g\u00ec? Json l\u00e0 g\u00ec? Json l\u00e0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1666,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[86],"tags":[403],"class_list":["post-1662","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chia-se-kinh-nghiem","tag-json-la-gi-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Json L\u00e0 G\u00ec? Nh\u1eefng \u0110i\u1ec1u D\u00e2n L\u1eadp Tr\u00ecnh C\u1ea7n Bi\u1ebft V\u1ec1 JSON<\/title>\n<meta name=\"description\" content=\"Json l\u00e0 g\u00ec? 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