{"id":223,"date":"2020-07-18T23:56:47","date_gmt":"2020-07-18T16:56:47","guid":{"rendered":"http:\/\/tuantvk.com\/?p=223"},"modified":"2020-07-19T00:00:21","modified_gmt":"2020-07-18T17:00:21","slug":"web-basics-string-slice","status":"publish","type":"post","link":"https:\/\/tuantvk.com\/web-basics-string-slice\/","title":{"rendered":"Web Basics \u2013 String.slice"},"content":{"rendered":"\n<p>H\u00e0m <strong>slice <\/strong>d\u00f9ng \u0111\u1ec3 l\u1ea5y ra m\u1ed9t ph\u1ea7n c\u1ee7a chu\u1ed7i v\u00e0 tr\u1ea3 v\u1ec1 cho ta m\u1ed9t chu\u1ed7i m\u1edbi.<\/p>\n\n\n\n<p>C\u00e1c b\u1ea1n h\u00e3y lu\u00f4n nh\u1edb r\u1eb1ng gi\u00e1 tr\u1ecb index trong Javascript b\u1eaft \u0111\u1ea7u t\u1eeb 0. V\u00ec v\u1eady, k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean trong chu\u1ed7i c\u00f3 v\u1ecb tr\u00ed 0.<\/p>\n\n\n\n<p>H\u00e0m slice nh\u1eadn v\u00e0o 2 tham s\u1ed1: start v\u00e0 end.<\/p>\n\n\n\n<p>start: v\u1ecb tr\u00ed b\u1eaft \u0111\u1ea7u \u0111\u1ec3 l\u1ea5y chu\u1ed7i k\u00fd t\u1ef1. N\u1ebfu b\u1ea1n kh\u00f4ng truy\u1ec1n tham s\u1ed1 \u0111\u1ea7u v\u00e0o th\u00ec m\u1eb7c \u0111\u1ecbnh s\u1ebd l\u00e0 0 (k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean).<br>end: v\u1ecb tr\u00ed k\u1ebft th\u00fac \u0111\u1ec3 l\u1ea5y chu\u1ed7i k\u00fd t\u1ef1. T\u01b0\u01a1ng t\u1ef1, n\u1ebfu b\u1ea1n kh\u00f4ng truy\u1ec1n tham s\u1ed1 cho end th\u00ec m\u1eb7c \u0111\u1ecbnh h\u00e0m slice s\u1ebd l\u1ea5y t\u1ef1 v\u1ecb tr\u00ed \u0111\u1ea7u cho \u0111\u1ebfn cu\u1ed1i chu\u1ed7i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ed d\u1ee5:<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>const string = 'Web Basics';\n\nstring.slice(4, 7); \/\/ 'Bas'\nstring.slice(-6, -3); \/\/ 'Bas'\nstring.slice(4, -3); \/\/ 'Bas'<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>H\u00e0m slice d\u00f9ng \u0111\u1ec3 l\u1ea5y ra m\u1ed9t ph\u1ea7n c\u1ee7a chu\u1ed7i v\u00e0 tr\u1ea3 v\u1ec1 cho ta m\u1ed9t chu\u1ed7i m\u1edbi. C\u00e1c b\u1ea1n h\u00e3y lu\u00f4n nh\u1edb r\u1eb1ng gi\u00e1 tr\u1ecb index trong Javascript b\u1eaft \u0111\u1ea7u t\u1eeb 0. V\u00ec v\u1eady, k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean trong chu\u1ed7i c\u00f3 v\u1ecb tr\u00ed 0. H\u00e0m slice nh\u1eadn v\u00e0o 2 tham s\u1ed1: start v\u00e0 end. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":226,"comment_status":"close","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Web Basics \u2013 String.slice - tuantvk<\/title>\n<meta name=\"description\" content=\"Ph\u01b0\u01a1ng th\u1ee9c slice() t\u1ea1o ra m\u1ed9t Chu\u1ed7i m\u1edbi t\u1eeb m\u1ed9t ph\u1ea7n c\u1ee7a Chu\u1ed7i hi\u1ec7n t\u1ea1i.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tuantvk.com\/web-basics-string-slice\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Web Basics \u2013 String.slice - tuantvk\" \/>\n<meta property=\"og:description\" content=\"Ph\u01b0\u01a1ng th\u1ee9c slice() t\u1ea1o ra m\u1ed9t Chu\u1ed7i m\u1edbi t\u1eeb m\u1ed9t ph\u1ea7n c\u1ee7a Chu\u1ed7i hi\u1ec7n t\u1ea1i.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tuantvk.com\/web-basics-string-slice\/\" \/>\n<meta property=\"og:site_name\" content=\"tuantvk\" \/>\n<meta property=\"article:published_time\" content=\"2020-07-18T16:56:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-07-18T17:00:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/tuantvk.com\/wp-content\/uploads\/2020\/07\/1_xcZKfLsAYXbozbZDRxk6wA-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"522\" \/>\n\t<meta property=\"og:image:height\" content=\"294\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"tuantvk\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"tuantvk\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/tuantvk.com\/web-basics-string-slice\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/tuantvk.com\/web-basics-string-slice\/\"},\"author\":{\"name\":\"tuantvk\",\"@id\":\"https:\/\/tuantvk.com\/#\/schema\/person\/9357530531a557741484cc31c0b244bc\"},\"headline\":\"Web Basics \u2013 String.slice\",\"datePublished\":\"2020-07-18T16:56:47+00:00\",\"dateModified\":\"2020-07-18T17:00:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/tuantvk.com\/web-basics-string-slice\/\"},\"wordCount\":163,\"publisher\":{\"@id\":\"https:\/\/tuantvk.com\/#\/schema\/person\/9357530531a557741484cc31c0b244bc\"},\"image\":{\"@id\":\"https:\/\/tuantvk.com\/web-basics-string-slice\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/tuantvk.com\/wp-content\/uploads\/2020\/07\/1_xcZKfLsAYXbozbZDRxk6wA-1.png\",\"articleSection\":[\"JAVASCRIPT\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/tuantvk.com\/web-basics-string-slice\/\",\"url\":\"https:\/\/tuantvk.com\/web-basics-string-slice\/\",\"name\":\"Web Basics \u2013 String.slice - 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