{"id":26252,"date":"2022-10-08T10:00:07","date_gmt":"2022-10-08T10:00:07","guid":{"rendered":"https:\/\/kb.hostatom.com\/?p=26252"},"modified":"2025-11-10T01:32:50","modified_gmt":"2025-11-10T01:32:50","slug":"html-web-workers-api","status":"publish","type":"post","link":"https:\/\/kb.hostatom.com\/lesson\/26252\/","title":{"rendered":"HTML\u00a0Web Workers API"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"26252\" class=\"elementor elementor-26252\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4d353060 e-flex e-con-boxed e-con e-parent\" data-id=\"4d353060\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-160fd18 elementor-widget elementor-widget-heading\" data-id=\"160fd18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">HTML Web Workers API<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d47df25 elementor-widget elementor-widget-text-editor\" data-id=\"d47df25\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Web Worker \u0e04\u0e37\u0e2d\u0e44\u0e1f\u0e25\u0e4c JavaScript \u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01\u0e17\u0e35\u0e48\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e17\u0e33\u0e07\u0e32\u0e19\u0e2d\u0e22\u0e39\u0e48\u0e40\u0e1a\u0e37\u0e49\u0e2d\u0e07\u0e2b\u0e25\u0e31\u0e07\u0e44\u0e14\u0e49 \u0e42\u0e14\u0e22\u0e44\u0e21\u0e48\u0e17\u0e33\u0e43\u0e2b\u0e49\u0e1b\u0e23\u0e30\u0e2a\u0e34\u0e17\u0e18\u0e34\u0e20\u0e32\u0e1e\u0e02\u0e2d\u0e07\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a\u0e25\u0e14\u0e25\u0e07<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5113a9e elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"5113a9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0bbe622 elementor-widget elementor-widget-heading\" data-id=\"0bbe622\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Web Worker \u0e04\u0e37\u0e2d\u0e2d\u0e30\u0e44\u0e23?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cfccd1 elementor-widget elementor-widget-text-editor\" data-id=\"7cfccd1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e42\u0e14\u0e22\u0e1b\u0e01\u0e15\u0e34 \u0e40\u0e21\u0e37\u0e48\u0e2d\u0e23\u0e31\u0e19\u0e2a\u0e04\u0e23\u0e34\u0e1b\u0e15\u0e4c\u0e43\u0e19\u0e2b\u0e19\u0e49\u0e32 HTML \u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a\u0e08\u0e30 \u201c\u0e04\u0e49\u0e32\u0e07\u201d \u0e2b\u0e23\u0e37\u0e2d \u201c\u0e44\u0e21\u0e48\u0e15\u0e2d\u0e1a\u0e2a\u0e19\u0e2d\u0e07\u201d \u0e08\u0e19\u0e01\u0e27\u0e48\u0e32\u0e2a\u0e04\u0e23\u0e34\u0e1b\u0e15\u0e4c\u0e19\u0e31\u0e49\u0e19\u0e08\u0e30\u0e17\u0e33\u0e07\u0e32\u0e19\u0e40\u0e2a\u0e23\u0e47\u0e08<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae00658 elementor-widget elementor-widget-text-editor\" data-id=\"ae00658\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t\u0e41\u0e15\u0e48 Web Worker \u0e40\u0e1b\u0e47\u0e19\u0e44\u0e1f\u0e25\u0e4c JavaScript \u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01\u0e17\u0e35\u0e48\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e17\u0e33\u0e07\u0e32\u0e19\u0e43\u0e19\u0e40\u0e1a\u0e37\u0e49\u0e2d\u0e07\u0e2b\u0e25\u0e31\u0e07\u0e44\u0e14\u0e49 \u0e42\u0e14\u0e22\u0e17\u0e33\u0e07\u0e32\u0e19\u0e41\u0e22\u0e01\u0e08\u0e32\u0e01\u0e2a\u0e04\u0e23\u0e34\u0e1b\u0e15\u0e4c\u0e2b\u0e25\u0e31\u0e01\u0e02\u0e2d\u0e07\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a \u0e17\u0e33\u0e43\u0e2b\u0e49\u0e1c\u0e39\u0e49\u0e43\u0e0a\u0e49\u0e22\u0e31\u0e07\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e04\u0e25\u0e34\u0e01 \u0e40\u0e25\u0e37\u0e2d\u0e01 \u0e2b\u0e23\u0e37\u0e2d\u0e17\u0e33\u0e01\u0e34\u0e08\u0e01\u0e23\u0e23\u0e21\u0e2d\u0e37\u0e48\u0e19 \u0e46 \u0e44\u0e14\u0e49\u0e15\u0e32\u0e21\u0e1b\u0e01\u0e15\u0e34\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a92716e elementor-widget elementor-widget-text-editor\" data-id=\"a92716e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Web Worker \u0e21\u0e35\u0e1b\u0e23\u0e30\u0e42\u0e22\u0e0a\u0e19\u0e4c\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e21\u0e32\u0e01\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e23\u0e31\u0e19\u0e42\u0e04\u0e49\u0e14\u0e17\u0e35\u0e48\u0e43\u0e0a\u0e49\u0e40\u0e27\u0e25\u0e32\u0e19\u0e32\u0e19\u0e2b\u0e23\u0e37\u0e2d\u0e43\u0e0a\u0e49\u0e17\u0e23\u0e31\u0e1e\u0e22\u0e32\u0e01\u0e23\u0e40\u0e22\u0e2d\u0e30 \u0e40\u0e1e\u0e23\u0e32\u0e30\u0e08\u0e30\u0e0a\u0e48\u0e27\u0e22\u0e43\u0e2b\u0e49\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a\u0e44\u0e21\u0e48\u0e04\u0e49\u0e32\u0e07<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a180ea0 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"a180ea0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1663a7a elementor-widget elementor-widget-heading\" data-id=\"1663a7a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Browser Support (\u0e01\u0e32\u0e23\u0e23\u0e2d\u0e07\u0e23\u0e31\u0e1a\u0e02\u0e2d\u0e07\u0e40\u0e1a\u0e23\u0e32\u0e27\u0e4c\u0e40\u0e0b\u0e2d\u0e23\u0e4c)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a873ce elementor-widget elementor-widget-text-editor\" data-id=\"6a873ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e15\u0e32\u0e23\u0e32\u0e07\u0e14\u0e49\u0e32\u0e19\u0e25\u0e48\u0e32\u0e07\u0e41\u0e2a\u0e14\u0e07\u0e40\u0e27\u0e2d\u0e23\u0e4c\u0e0a\u0e31\u0e19\u0e41\u0e23\u0e01\u0e02\u0e2d\u0e07\u0e40\u0e1a\u0e23\u0e32\u0e27\u0e4c\u0e40\u0e0b\u0e2d\u0e23\u0e4c\u0e17\u0e35\u0e48\u0e23\u0e2d\u0e07\u0e23\u0e31\u0e1a Web Workers API \u0e2d\u0e22\u0e48\u0e32\u0e07\u0e2a\u0e21\u0e1a\u0e39\u0e23\u0e13\u0e4c<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9c010c elementor-widget elementor-widget-html\" data-id=\"d9c010c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<div class=\"ls-tbl-wrap\">\r\n<table class=\"ls-tbl\">\r\n<tr><th>API<\/th><th>Chrome<\/th><th>Edge<\/th><th>Firefox<\/th><th>Safari<\/th><th>Opera<\/th><\/tr>\r\n<tr><td>Web Workers\t<\/td><td>4.0<\/td><td>10.0<\/td><td>3.5<\/td><td>4.0<\/td><td>11.5<\/td><\/tr>\r\n<\/table>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6487a8 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"b6487a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de9a461 elementor-widget elementor-widget-heading\" data-id=\"de9a461\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49 Web Worker<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-82e3b3f elementor-widget elementor-widget-text-editor\" data-id=\"82e3b3f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e19\u0e35\u0e49\u0e2a\u0e23\u0e49\u0e32\u0e07 Web Worker \u0e2d\u0e22\u0e48\u0e32\u0e07\u0e07\u0e48\u0e32\u0e22\u0e17\u0e35\u0e48\u0e17\u0e33\u0e01\u0e32\u0e23\u0e19\u0e31\u0e1a\u0e15\u0e31\u0e27\u0e40\u0e25\u0e02\u0e43\u0e19\u0e40\u0e1a\u0e37\u0e49\u0e2d\u0e07\u0e2b\u0e25\u0e31\u0e07\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-360014b sty26252-001 elementor-widget elementor-widget-html\" data-id=\"360014b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<iframe loading=\"lazy\" id=\"tryhtml\" \r\n  src=\"https:\/\/kb.hostatom.com\/lesson\/html\/tryhtml-apis?filename=webworker\" \r\n  width=\"100%\" height=\"400\" style=\"border:none;\"><\/iframe>\r\n\r\n<script>\r\n  const frame = document.getElementById('tryhtml');\r\n  frame.onload = () => {\r\n    try {\r\n      const h2 = frame.contentDocument.querySelector('h2.page-title');\r\n      if (h2) h2.remove();\r\n    } catch (e) {\r\n      console.warn('Cannot access cross-origin frame');\r\n    }\r\n  };\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4002be3 elementor-widget elementor-widget-button\" data-id=\"4002be3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/kb.hostatom.com\/lesson\/html\/tryhtml-apis?filename=webworker\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-external-link-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M432,320H400a16,16,0,0,0-16,16V448H64V128H208a16,16,0,0,0,16-16V80a16,16,0,0,0-16-16H48A48,48,0,0,0,0,112V464a48,48,0,0,0,48,48H400a48,48,0,0,0,48-48V336A16,16,0,0,0,432,320ZM488,0h-128c-21.37,0-32.05,25.91-17,41l35.73,35.73L135,320.37a24,24,0,0,0,0,34L157.67,377a24,24,0,0,0,34,0L435.28,133.32,471,169c15,15,41,4.5,41-17V24A24,24,0,0,0,488,0Z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">\u0e25\u0e2d\u0e07\u0e14\u0e39\u0e2a\u0e34<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-78afc95 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"78afc95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab3fd0f elementor-widget elementor-widget-heading\" data-id=\"ab3fd0f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e27\u0e48\u0e32\u0e40\u0e1a\u0e23\u0e32\u0e27\u0e4c\u0e40\u0e0b\u0e2d\u0e23\u0e4c\u0e23\u0e2d\u0e07\u0e23\u0e31\u0e1a\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5dd82d0 elementor-widget elementor-widget-text-editor\" data-id=\"5dd82d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e01\u0e48\u0e2d\u0e19\u0e43\u0e0a\u0e49 Web Worker \u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e01\u0e32\u0e23\u0e23\u0e2d\u0e07\u0e23\u0e31\u0e1a\u0e44\u0e14\u0e49\u0e14\u0e31\u0e07\u0e19\u0e35\u0e49:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b45d70 elementor-widget elementor-widget-code-highlight\" data-id=\"6b45d70\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp><script>\r\nconst x = document.getElementById(\"result\");\r\nif (typeof(Worker) !== \"undefined\") {\r\n  x.innerHTML = \"\u0e40\u0e1a\u0e23\u0e32\u0e27\u0e4c\u0e40\u0e0b\u0e2d\u0e23\u0e4c\u0e02\u0e2d\u0e07\u0e04\u0e38\u0e13\u0e23\u0e2d\u0e07\u0e23\u0e31\u0e1a Web Workers!\";\r\n} else {\r\n  x.innerHTML = \"\u0e40\u0e1a\u0e23\u0e32\u0e27\u0e4c\u0e40\u0e0b\u0e2d\u0e23\u0e4c\u0e02\u0e2d\u0e07\u0e04\u0e38\u0e13\u0e44\u0e21\u0e48\u0e23\u0e2d\u0e07\u0e23\u0e31\u0e1a Web Workers.\";\r\n}\r\n<\/script>\r\n<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aae8f96 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"aae8f96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7035258 elementor-widget elementor-widget-heading\" data-id=\"7035258\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e2a\u0e23\u0e49\u0e32\u0e07\u0e44\u0e1f\u0e25\u0e4c .js \u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a Web Worker<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43d5516 elementor-widget elementor-widget-text-editor\" data-id=\"43d5516\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e08\u0e30\u0e2a\u0e23\u0e49\u0e32\u0e07\u0e2a\u0e04\u0e23\u0e34\u0e1b\u0e15\u0e4c\u0e17\u0e35\u0e48\u0e17\u0e33\u0e01\u0e32\u0e23\u0e19\u0e31\u0e1a\u0e40\u0e25\u0e02\u0e44\u0e27\u0e49\u0e43\u0e19\u0e44\u0e1f\u0e25\u0e4c demo_workers.js<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2d9bbe0 elementor-widget elementor-widget-code-highlight\" data-id=\"2d9bbe0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>var i = 0;\r\n\r\nfunction timedCount() {\r\n  i = i + 1;\r\n  postMessage(i);\r\n  setTimeout(\"timedCount()\", 500);\r\n}\r\n\r\ntimedCount();<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-557921a elementor-alert-warning elementor-widget elementor-widget-alert\" data-id=\"557921a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\">\u0e2a\u0e48\u0e27\u0e19\u0e2a\u0e33\u0e04\u0e31\u0e0d\u0e02\u0e2d\u0e07\u0e42\u0e04\u0e49\u0e14\u0e19\u0e35\u0e49\u0e04\u0e37\u0e2d postMessage() \u0e0b\u0e36\u0e48\u0e07\u0e43\u0e0a\u0e49\u0e2a\u0e48\u0e07\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e01\u0e25\u0e31\u0e1a\u0e44\u0e1b\u0e22\u0e31\u0e07\u0e2b\u0e19\u0e49\u0e32 HTML<\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c9b01ad elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"c9b01ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58470cb elementor-widget elementor-widget-heading\" data-id=\"58470cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e2a\u0e23\u0e49\u0e32\u0e07\u0e2d\u0e2d\u0e1a\u0e40\u0e08\u0e47\u0e01\u0e15\u0e4c Web Worker<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-294f405 elementor-widget elementor-widget-text-editor\" data-id=\"294f405\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e21\u0e35\u0e44\u0e1f\u0e25\u0e4c <code>.js<\/code> \u0e41\u0e25\u0e49\u0e27 \u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e40\u0e23\u0e35\u0e22\u0e01\u0e43\u0e0a\u0e49\u0e07\u0e32\u0e19\u0e08\u0e32\u0e01\u0e2b\u0e19\u0e49\u0e32 HTML \u0e44\u0e14\u0e49\u0e14\u0e31\u0e07\u0e19\u0e35\u0e49:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee87702 elementor-widget elementor-widget-code-highlight\" data-id=\"ee87702\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>if (typeof(w) == \"undefined\") {\r\n  w = new Worker(\"demo_workers.js\");\r\n}<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e12fd5e elementor-widget elementor-widget-text-editor\" data-id=\"e12fd5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e08\u0e32\u0e01\u0e19\u0e31\u0e49\u0e19\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16 <strong>\u0e2a\u0e48\u0e07\u0e41\u0e25\u0e30\u0e23\u0e31\u0e1a\u0e02\u0e49\u0e2d\u0e04\u0e27\u0e32\u0e21<\/strong> \u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07 Web Worker \u0e41\u0e25\u0e30\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a\u0e44\u0e14\u0e49 \u0e42\u0e14\u0e22\u0e43\u0e0a\u0e49\u0e23\u0e30\u0e1a\u0e1a <strong>message passing<\/strong><\/p>\n<ul>\n<li>\u0e43\u0e0a\u0e49 <code>postMessage()<\/code> \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e2a\u0e48\u0e07\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25<\/li>\n<li>\u0e43\u0e0a\u0e49 <code>onmessage<\/code> \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e23\u0e31\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-201e6ea elementor-widget elementor-widget-code-highlight\" data-id=\"201e6ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>w.onmessage = function(event) {\r\n  document.getElementById(\"result\").innerHTML = event.data;\r\n};<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0fddc68 elementor-widget elementor-widget-text-editor\" data-id=\"0fddc68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e40\u0e21\u0e37\u0e48\u0e2d Web Worker \u0e2a\u0e48\u0e07\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e01\u0e25\u0e31\u0e1a\u0e21\u0e32 (\u0e1c\u0e48\u0e32\u0e19 <code>postMessage()<\/code>), \u0e1f\u0e31\u0e07\u0e01\u0e4c\u0e0a\u0e31\u0e19\u0e43\u0e19 <code>onmessage<\/code> \u0e08\u0e30\u0e17\u0e33\u0e07\u0e32\u0e19\u0e17\u0e31\u0e19\u0e17\u0e35 \u0e41\u0e25\u0e30\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e08\u0e30\u0e2d\u0e22\u0e39\u0e48\u0e43\u0e19 <code>event.data<\/code><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa173cf elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"fa173cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47e0e86 elementor-widget elementor-widget-heading\" data-id=\"47e0e86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e2b\u0e22\u0e38\u0e14\u0e01\u0e32\u0e23\u0e17\u0e33\u0e07\u0e32\u0e19\u0e02\u0e2d\u0e07 Web Worker<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a004543 elementor-widget elementor-widget-text-editor\" data-id=\"a004543\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e2a\u0e23\u0e49\u0e32\u0e07 Web Worker \u0e41\u0e25\u0e49\u0e27 \u0e21\u0e31\u0e19\u0e08\u0e30\u0e17\u0e33\u0e07\u0e32\u0e19\u0e15\u0e48\u0e2d\u0e40\u0e19\u0e37\u0e48\u0e2d\u0e07\u0e08\u0e19\u0e01\u0e27\u0e48\u0e32\u0e08\u0e30\u0e16\u0e39\u0e01\u0e2a\u0e31\u0e48\u0e07\u0e43\u0e2b\u0e49\u0e2b\u0e22\u0e38\u0e14 \u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e2b\u0e22\u0e38\u0e14 Web Worker \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e1b\u0e23\u0e30\u0e2b\u0e22\u0e31\u0e14\u0e17\u0e23\u0e31\u0e1e\u0e22\u0e32\u0e01\u0e23\u0e44\u0e14\u0e49\u0e14\u0e49\u0e27\u0e22\u0e04\u0e33\u0e2a\u0e31\u0e48\u0e07:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cff0ff9 elementor-widget elementor-widget-code-highlight\" data-id=\"cff0ff9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>w.terminate();\r\n<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eeadfa8 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"eeadfa8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-04a1c4e elementor-widget elementor-widget-heading\" data-id=\"04a1c4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e43\u0e0a\u0e49 Web Worker \u0e0b\u0e49\u0e33\u0e2d\u0e35\u0e01\u0e04\u0e23\u0e31\u0e49\u0e07<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b387ba9 elementor-widget elementor-widget-text-editor\" data-id=\"b387ba9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e2b\u0e25\u0e31\u0e07\u0e08\u0e32\u0e01\u0e2b\u0e22\u0e38\u0e14\u0e01\u0e32\u0e23\u0e17\u0e33\u0e07\u0e32\u0e19\u0e41\u0e25\u0e49\u0e27 \u0e16\u0e49\u0e32\u0e15\u0e49\u0e2d\u0e07\u0e01\u0e32\u0e23\u0e40\u0e23\u0e34\u0e48\u0e21\u0e43\u0e2b\u0e21\u0e48\u0e2d\u0e35\u0e01\u0e04\u0e23\u0e31\u0e49\u0e07 \u0e43\u0e2b\u0e49\u0e15\u0e31\u0e49\u0e07\u0e04\u0e48\u0e32\u0e40\u0e1b\u0e47\u0e19 <code>undefined:<\/code><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c685f06 elementor-widget elementor-widget-code-highlight\" data-id=\"c685f06\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>w = undefined;\r\n<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-33b2a62 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"33b2a62\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-267e4e8 elementor-widget elementor-widget-heading\" data-id=\"267e4e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07 Full Web Worker Example<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d3a059 elementor-widget elementor-widget-text-editor\" data-id=\"1d3a059\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t\u0e19\u0e35\u0e48\u0e04\u0e37\u0e2d\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e42\u0e04\u0e49\u0e14 HTML \u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14:\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-816fc3f elementor-widget elementor-widget-code-highlight\" data-id=\"816fc3f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-html line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-html\">\n\t\t\t\t\t<xmp><!DOCTYPE html>\r\n<html>\r\n<body>\r\n\r\n<p>\u0e19\u0e31\u0e1a\u0e40\u0e25\u0e02: <output id=\"result\"><\/output><\/p>\r\n<button onclick=\"startWorker()\">Start Worker<\/button>\r\n<button onclick=\"stopWorker()\">Stop Worker<\/button>\r\n\r\n<script>\r\nlet w;\r\n\r\nfunction startWorker() {\r\n  const x = document.getElementById(\"result\");\r\n  if (typeof(Worker) !== \"undefined\") {\r\n    if (typeof(w) == \"undefined\") {\r\n      w = new Worker(\"demo_workers.js\");\r\n    }\r\n    w.onmessage = function(event) {\r\n      x.innerHTML = event.data;\r\n    };\r\n  } else {\r\n    x.innerHTML = \"\u0e40\u0e1a\u0e23\u0e32\u0e27\u0e4c\u0e40\u0e0b\u0e2d\u0e23\u0e4c\u0e02\u0e2d\u0e07\u0e04\u0e38\u0e13\u0e44\u0e21\u0e48\u0e23\u0e2d\u0e07\u0e23\u0e31\u0e1a Web Workers.\";\r\n  }\r\n}\r\n\r\nfunction stopWorker() {\r\n  w.terminate();\r\n  w = undefined;\r\n}\r\n<\/script>\r\n\r\n<\/body>\r\n<\/html>\r\n<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b94fe1e elementor-widget elementor-widget-button\" data-id=\"b94fe1e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/kb.hostatom.com\/lesson\/html\/tryhtml-apis?filename=webworker\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-external-link-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path 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class=\"elementor-element elementor-element-72ae0ce elementor-widget elementor-widget-heading\" data-id=\"72ae0ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Web Worker \u0e01\u0e31\u0e1a DOM<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d389b3e elementor-widget elementor-widget-text-editor\" data-id=\"d389b3e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t\u0e40\u0e19\u0e37\u0e48\u0e2d\u0e07\u0e08\u0e32\u0e01 Web Worker \u0e2d\u0e22\u0e39\u0e48\u0e43\u0e19\u0e44\u0e1f\u0e25\u0e4c <code>.js<\/code> \u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01 \u0e21\u0e31\u0e19 \u0e44\u0e21\u0e48\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e40\u0e02\u0e49\u0e32\u0e16\u0e36\u0e07 \u0e27\u0e31\u0e15\u0e16\u0e38\u0e1a\u0e32\u0e07\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e02\u0e2d\u0e07 JavaScript 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