window.alert(\"v\u0103n b\u1ea3n\");<\/code><\/pre>\n\n\n\nPh\u01b0\u01a1ng th\u1ee9c window.alert()<\/strong> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft kh\u00f4ng c\u1ea7n ti\u1ec1n t\u1ed1 window.<\/p>\n\n\n\nV\u00ed d\u1ee5<\/h3>\n\n\n\nalert(\"T\u00f4i l\u00e0 h\u1ed9p th\u00f4ng b\u00e1o alert!\");<\/code><\/pre>\n\n\n\n \n\n\n\n<\/span>H\u1ed9p x\u00e1c nh\u1eadn<\/span><\/h2>\n\n\n\nH\u1ed9p x\u00e1c nh\u1eadn th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng n\u1ebfu b\u1ea1n mu\u1ed1n ng\u01b0\u1eddi d\u00f9ng x\u00e1c nh\u1eadn ho\u1eb7c \u0111\u1ed3ng \u00fd \u0111i\u1ec1u g\u00ec \u0111\u00f3.<\/p>\n\n\n\n
Khi h\u1ed9p x\u00e1c nh\u1eadn \u0111\u01b0\u1ee3c b\u1eadt ra, ng\u01b0\u1eddi d\u00f9ng s\u1ebd nh\u1ea5n v\u00e0o m\u1ed9t trong hai n\u00fat “OK” ho\u1eb7c “Cancel \/ b\u1ecf qua” \u0111\u1ec3 x\u1eed l\u00fd.<\/p>\n\n\n\n
N\u1ebfu ng\u01b0\u1eddi d\u00f9ng click v\u00e0o “OK”, h\u1ed9p s\u1ebd tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 true. N\u1ebfu ng\u01b0\u1eddi d\u00f9ng click v\u00e0o “Cancel”, h\u1ed9p s\u1ebd tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 false.<\/p>\n\n\n\n
C\u00fa ph\u00e1p<\/h3>\n\n\n\nwindow.confirm(\"v\u0103n b\u1ea3n\");<\/code><\/pre>\n\n\n\nPh\u01b0\u01a1ng th\u1ee9c window.confirm()<\/strong> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft kh\u00f4ng c\u1ea7n ti\u1ec1n t\u1ed1 window.<\/p>\n\n\n\nV\u00ed d\u1ee5<\/h3>\n\n\n\nvar r = confirm(\"Press a button\");\nif (r == true) {\nx = \"B\u1ea1n nh\u1ea5n OK!\";\n} else {\nx = \"B\u1ea1n nh\u1ea5n Cancel!\";\n}<\/code><\/pre>\n\n\n\n \n\n\n\n<\/span>H\u1ed9p nh\u1eafc<\/span><\/h2>\n\n\n\nH\u1ed9p nh\u1eafc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng n\u1ebfu b\u1ea1n mu\u1ed1n ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1ed9t gi\u00e1 tr\u1ecb tr\u01b0\u1edbc khi v\u00e0o m\u1ed9t trang n\u00e0o \u0111\u1ea5y.<\/p>\n\n\n\n
Khi h\u1ed9p nh\u1eafc b\u1eadt ra, ng\u01b0\u1eddi d\u00f9ng s\u1ebd click v\u00e0o “OK” ho\u1eb7c “Cancel” \u0111\u1ec3 x\u1eed l\u00fd sau khi nh\u1eadp gi\u00e1 tr\u1ecb input.<\/p>\n\n\n\n
N\u1ebfu ng\u01b0\u1eddi d\u00f9ng click “OK” h\u1ed9p s\u1ebd tr\u1ea3 v\u1ec1 gi\u00e1 tr\u1ecb input. N\u1ebfu ng\u01b0\u1eddi d\u00f9ng click “Cancel” h\u1ed9p s\u1ebd tr\u1ea3 v\u1ec1 null.<\/p>\n\n\n\n
C\u00fa ph\u00e1p<\/h3>\n\n\n\nwindow.prompt(\"v\u0103n b\u1ea3n\",\"v\u0103n b\u1ea3n m\u1eb7c \u0111\u1ecbnh\");<\/code><\/pre>\n\n\n\nPh\u01b0\u01a1ng th\u1ee9c window.prompt()<\/strong> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft m\u00e0 kh\u00f4ng c\u1ea7n ti\u1ec1n t\u1ed1 window.<\/p>\n\n\n\nV\u00ed d\u1ee5<\/h3>\n\n\n\nvar person = prompt(\"Nh\u1eadp t\u00ean c\u1ee7a b\u1ea1n\", \"Harry Potter\");\nif (person != null) {\ndocument.getElementById(\"demo\").innerHTML =\n\"Xin ch\u00e0o \" + person + \"! H\u00f4m nay b\u1ea1n th\u1ebf n\u00e0o?\";\n}<\/code><\/pre>\n\n\n\n \n\n\n\n<\/span>Xu\u1ed1ng d\u00f2ng<\/span><\/h2>\n\n\n\n\u0110\u1ec3 hi\u1ec3n th\u1ecb xu\u1ed1ng d\u00f2ng tr\u00ean trong h\u1ed9p popup, s\u1eed d\u1ee5ng d\u1ea5u g\u1ea1ch ng\u01b0\u1ee3c v\u1edbi k\u00fd t\u1ef1 n.<\/p>\n\n\n\n
V\u00ed d\u1ee5<\/h3>\n\n\n\nalert(\"Xin ch\u00e0o\\nB\u1ea1n th\u1ebf n\u00e0o?\");<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"JavaScript c\u00f3 ba ki\u1ec3u h\u1ed9p popup: h\u1ed9p Alert (b\u00e1o \u0111\u1ed9ng), h\u1ed9p Confirm (x\u00e1c nh\u1eadn), v\u00e0 h\u1ed9p Prompt (nh\u1eafc nh\u1edf). H\u1ed9p Alert H\u1ed9p alert th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng n\u1ebfu b\u1ea1n mu\u1ed1n ch\u1eafc ch\u1eafn th\u00f4ng tin \u0111\u1ebfn \u0111\u01b0\u1ee3c v\u1edbi ng\u01b0\u1eddi d\u00f9ng. Khi h\u1ed9p c\u1ea3nh b\u00e1o alert b\u1eadt ra, ng\u01b0\u1eddi d\u00f9ng s\u1ebd nh\u1ea5n v\u00e0o n\u00fat OK \u0111\u1ec3 x\u1eed l\u00fd. …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[236],"tags":[],"yoast_head":"\n
H\u1ed9p Popup trong JavaScript • Ki\u1ebfn c\u00e0ng<\/title>\n \n \n \n \n \n \n \n \n \n \n \n \n \n\t \n\t \n\t \n","yoast_head_json":{"title":"H\u1ed9p Popup trong JavaScript • Ki\u1ebfn c\u00e0ng","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/kiencang.net\/hop-popup-trong-javascript\/","og_locale":"vi_VN","og_type":"article","og_title":"H\u1ed9p Popup trong JavaScript • Ki\u1ebfn c\u00e0ng","og_description":"JavaScript c\u00f3 ba ki\u1ec3u h\u1ed9p popup: h\u1ed9p Alert (b\u00e1o \u0111\u1ed9ng), h\u1ed9p Confirm (x\u00e1c nh\u1eadn), v\u00e0 h\u1ed9p Prompt (nh\u1eafc nh\u1edf). H\u1ed9p Alert H\u1ed9p alert th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng n\u1ebfu b\u1ea1n mu\u1ed1n ch\u1eafc ch\u1eafn th\u00f4ng tin \u0111\u1ebfn \u0111\u01b0\u1ee3c v\u1edbi ng\u01b0\u1eddi d\u00f9ng. Khi h\u1ed9p c\u1ea3nh b\u00e1o alert b\u1eadt ra, ng\u01b0\u1eddi d\u00f9ng s\u1ebd nh\u1ea5n v\u00e0o n\u00fat OK \u0111\u1ec3 x\u1eed l\u00fd. …","og_url":"https:\/\/kiencang.net\/hop-popup-trong-javascript\/","og_site_name":"Ki\u1ebfn c\u00e0ng","article_author":"https:\/\/www.facebook.com\/anhducnguyen87\/","article_published_time":"2016-07-21T04:53:27+00:00","author":"Nguy\u1ec5n \u0110\u1ee9c Anh","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"Nguy\u1ec5n \u0110\u1ee9c Anh","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"2 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/kiencang.net\/hop-popup-trong-javascript\/","url":"https:\/\/kiencang.net\/hop-popup-trong-javascript\/","name":"H\u1ed9p Popup trong JavaScript • Ki\u1ebfn c\u00e0ng","isPartOf":{"@id":"https:\/\/kiencang.net\/#website"},"datePublished":"2016-07-21T04:53:27+00:00","dateModified":"2016-07-21T04:53:27+00:00","author":{"@id":"https:\/\/kiencang.net\/#\/schema\/person\/5e7e1a04d8d1218ad8c421ba43d25c16"},"breadcrumb":{"@id":"https:\/\/kiencang.net\/hop-popup-trong-javascript\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/kiencang.net\/hop-popup-trong-javascript\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/kiencang.net\/hop-popup-trong-javascript\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/kiencang.net\/"},{"@type":"ListItem","position":2,"name":"H\u1ed9p Popup trong JavaScript"}]},{"@type":"WebSite","@id":"https:\/\/kiencang.net\/#website","url":"https:\/\/kiencang.net\/","name":"Ki\u1ebfn c\u00e0ng","description":"\u00d4m l\u00fd thuy\u1ebft, h\u00f4n th\u1ef1c h\u00e0nh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/kiencang.net\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"vi"},{"@type":"Person","@id":"https:\/\/kiencang.net\/#\/schema\/person\/5e7e1a04d8d1218ad8c421ba43d25c16","name":"Nguy\u1ec5n \u0110\u1ee9c Anh","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/kiencang.net\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/6d71f9b89393952a8382e30dad26c1ec?s=96&d=monsterid&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6d71f9b89393952a8382e30dad26c1ec?s=96&d=monsterid&r=g","caption":"Nguy\u1ec5n \u0110\u1ee9c Anh"},"description":"Sinh n\u0103m 1987, t\u1ed1t nghi\u1ec7p Cao \u0111\u1eb3ng th\u1ef1c h\u00e0nh FPT qu\u00e3ng 2014, chuy\u00ean ng\u00e0nh Thi\u1ebft k\u1ebf website. T\u00f4i th\u00edch Content, SEO, Ads, T\u0103ng t\u1ed1c website v\u00e0 Th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed. B\u00ean c\u1ea1nh b\u00e0i t\u1ef1 vi\u1ebft, t\u00f4i c\u0169ng d\u1ecbch nhi\u1ec1u n\u1ed9i dung th\u00fa v\u1ecb c\u1ee7a c\u00e1c t\u00e1c gi\u1ea3 kh\u00e1c nhau. FB c\u00e1 nh\u00e2n: facebook.com\/anhducnguyen87. Email li\u00ean h\u1ec7: guiemailchotoi@gmail.com","sameAs":["https:\/\/www.facebook.com\/anhducnguyen87\/"],"url":"https:\/\/kiencang.net\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts\/3347"}],"collection":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/comments?post=3347"}],"version-history":[{"count":0,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts\/3347\/revisions"}],"wp:attachment":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/media?parent=3347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/categories?post=3347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/tags?post=3347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}