{"id":3278,"date":"2017-08-08T22:27:22","date_gmt":"2017-08-08T19:27:22","guid":{"rendered":"http:\/\/kamil-abzalov.com\/tutorials\/intro-to-javascript\/"},"modified":"2020-04-08T21:39:13","modified_gmt":"2020-04-08T18:39:13","slug":"intro-to-javascript","status":"publish","type":"post","link":"https:\/\/kamil-abzalov.com\/en\/tutorials\/javascript\/intro-to-javascript\/","title":{"rendered":"Intro to javascript"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_fullwidth_header title=&#8221;Intro to javascript&#8221; content_max_width=&#8221;none&#8221; _builder_version=&#8221;3.16&#8243; button_one_letter_spacing_hover=&#8221;0&#8243; button_two_letter_spacing_hover=&#8221;0&#8243; button_one_text_size__hover_enabled=&#8221;off&#8221; button_two_text_size__hover_enabled=&#8221;off&#8221; button_one_text_color__hover_enabled=&#8221;off&#8221; button_two_text_color__hover_enabled=&#8221;off&#8221; button_one_border_width__hover_enabled=&#8221;off&#8221; button_two_border_width__hover_enabled=&#8221;off&#8221; button_one_border_color__hover_enabled=&#8221;off&#8221; button_two_border_color__hover_enabled=&#8221;off&#8221; button_one_border_radius__hover_enabled=&#8221;off&#8221; button_two_border_radius__hover_enabled=&#8221;off&#8221; button_one_letter_spacing__hover_enabled=&#8221;on&#8221; button_one_letter_spacing__hover=&#8221;0&#8243; button_two_letter_spacing__hover_enabled=&#8221;on&#8221; button_two_letter_spacing__hover=&#8221;0&#8243; button_one_bg_color__hover_enabled=&#8221;off&#8221; button_two_bg_color__hover_enabled=&#8221;off&#8221;][\/et_pb_fullwidth_header][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;3.25&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_padding=&#8221;0px|||&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_dcsbcm_divi_breadcrumbs_module homebreadcrumbtext=&#8221;Home&#8221; hide_currentbreadcrumb=&#8221;off&#8221; _builder_version=&#8221;4.4.2&#8243; custom_padding=&#8221;0px|||&#8221; fontsbreadcrumbs_font_size_tablet=&#8221;51&#8243; fontsbreadcrumbs_line_height_tablet=&#8221;2&#8243; fontsseperator_font_size_tablet=&#8221;51&#8243; fontsseperator_line_height_tablet=&#8221;2&#8243; fontsbreadcrumblinks_font_size_tablet=&#8221;51&#8243; fontsbreadcrumblinks_line_height_tablet=&#8221;2&#8243;][\/et_pb_dcsbcm_divi_breadcrumbs_module][et_pb_text _builder_version=&#8221;3.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221;]Before this lesson we worked with HTML and CSS. They were constructor of our page. We learnt make responsive site. But how to make sites &#8220;smarter&#8221;? Javascript helps us with it. Nowadays in javascript developers  can write server side code. There are a lot of frameworks for javascript.<br \/>\n[\/et_pb_text][et_pb_video src=&#8221;https:\/\/www.youtube.com\/watch?v=28qQ7-eecBw&#8221; _builder_version=&#8221;3.0.47&#8243;][\/et_pb_video][et_pb_text _builder_version=&#8221;3.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221;]Including javascript is similar to CSS including. You can include it in head section, or include as external file. For this purpose you must use <strong>&lt;script&gt;.&nbsp;<\/strong> tag.<br \/>\n[\/et_pb_text][et_pb_dmb_code_snippet title=&#8221;Code lesson (HTML)&#8221; code=&#8221;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&#8221; admin_label=&#8221;\u041a\u043e\u0434 \u0443\u0440\u043e\u043a\u0430&#8221; style=&#8221;docco&#8221; linenums=&#8221;on&#8221; usetabwidth=&#8221;on&#8221; tabwidth=&#8221;4&#8243; _builder_version=&#8221;4.4.2&#8243;]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[\/et_pb_dmb_code_snippet][et_pb_dmb_code_snippet title=&#8221;Code lesson (js)&#8221; code=&#8221;YWxlcnQoIkhlbGxvIHdvcmxkIik7CmNvbnNvbGUubG9nKDEpOw==&#8221; admin_label=&#8221;\u041a\u043e\u0434 \u0443\u0440\u043e\u043a\u0430&#8221; style=&#8221;docco&#8221; linenums=&#8221;on&#8221; usetabwidth=&#8221;on&#8221; tabwidth=&#8221;4&#8243; _builder_version=&#8221;4.4.2&#8243;]YWxlcnQoIkhlbGxvIHdvcmxkIik7CmNvbnNvbGUubG9nKDEpOw==[\/et_pb_dmb_code_snippet][et_pb_comments _builder_version=&#8221;4.4.2&#8243; custom_margin=&#8221;30px||||false|false&#8221; hover_enabled=&#8221;0&#8243;][\/et_pb_comments][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Before this lesson we worked with HTML and CSS. They were constructor of our page. We learnt make responsive site. But how to make sites &#8220;smarter&#8221;? Javascript helps us with it. Nowadays in javascript developers can write server side code. There are a lot of frameworks for javascript. Including javascript is similar to CSS including. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"\u0414\u043e \u044d\u0442\u043e\u0433\u043e \u0443\u0440\u043e\u043a\u0430 \u043c\u044b \u0440\u0430\u0431\u043e\u0442\u0430\u043b\u0438 \u0441 HTML \u0438 CSS - \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u043d\u0430\u0448\u0438 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430 \u0438 \u0434\u0435\u043b\u0430\u043b\u0438 \u0438\u0445 \u0431\u043e\u043b\u0435\u0435 \u043f\u0440\u0438\u0432\u043b\u0435\u043a\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c\u0438 \u0438 \u0430\u0434\u0430\u043f\u0442\u0438\u0432\u043d\u044b\u043c\u0438. \u041d\u043e \u043a\u0430\u043a \u0436\u0435 \u0441\u0434\u0435\u043b\u0430\u0442\u044c \"\u0438\u043d\u0442\u0435\u043b\u043b\u0435\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u043c\u0438\". \u0421 \u0441\u0435\u0433\u043e\u0434\u043d\u044f\u0448\u043d\u0435\u0433\u043e \u0443\u0440\u043e\u043a\u0430 \u043c\u044b \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u043c \u0438\u0437\u0443\u0447\u0430\u0442\u044c \u044f\u0437\u044b\u043a JavaScript - \u0441\u0430\u043c\u043e\u0441\u0442\u043e\u044f\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0438 \u043e\u0447\u0435\u043d\u044c \u043c\u043e\u0449\u043d\u044b\u0439 \u044f\u0437\u044b\u043a \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u0412 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0435 \u0433\u043e\u0434\u044b \u044d\u0442\u043e\u0442 \u044f\u0437\u044b\u043a \u043d\u0430\u0431\u0440\u0430\u043b \u0441\u0443\u043c\u0430\u0441\u0448\u0435\u0434\u0448\u0443\u044e \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u043e\u0441\u0442\u044c. \u041d\u0430 \u043d\u0435\u043c \u043f\u0438\u0448\u0443\u0442 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u0443\u044e \u0447\u0430\u0441\u0442\u044c - \u0441\u043e\u0437\u0434\u0430\u044e\u0442 \u043c\u043e\u0449\u043d\u044b\u0435 \u0432\u0435\u0431-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f. \u041d\u0430 JavaScript \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u043e\u0433\u0440\u043e\u043c\u043d\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0442\u0441\u0442\u0432\u043e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a \u0438 \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u043e\u0432.<!--more-->\r\n\r\n\u041f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 js (JavaScript) \u043f\u043e\u0445\u043e\u0436\u0435 \u043d\u0430 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 css - \u0435\u0433\u043e \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432 \u0441\u0435\u043a\u0446\u0438\u0438 head \u0438\u043b\u0438 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u043a\u0430\u043a \u0432\u043d\u0435\u0448\u043d\u0438\u0439 \u0444\u0430\u0439\u043b. \u0421\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e, \u0434\u043b\u044f \u043e\u0431\u043e\u0438\u0445 \u0441\u043f\u043e\u0441\u043e\u0431\u043e\u0432 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0442\u0435\u0433 <strong><script>.\u00a0<\/strong>\u0422\u044d\u0433 \u044d\u0442\u043e\u0442 \u043f\u0430\u0440\u043d\u044b\u0439.\r\n\r\nhttps:\/\/www.youtube.com\/watch?v=28qQ7-eecBw\r\n\r\n\u041a\u043e\u0434 index.html\r\n\r\n<pre><code><!DOCTYPE html>\r\n<html>\r\n<head>\r\n    <title>Java Script<\/title>\r\n    <meta charset=\"utf-8\"\/>\r\n    <!--\u041f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 js \u0432 \u0441\u0435\u043a\u0446\u0438\u0438 head--> \r\n    <script>\r\n        alert(\"Hello world\");\r\n        console.log(1);\r\n    <\/script>\r\n<\/head>\r\n<body>\r\n\r\n    <!--\u041f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 js \u0432 \u043a\u043e\u043d\u0446\u0435 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430--> \r\n    <script>\r\n        alert(\"Hello world\");\r\n        console.log(1);\r\n    <\/script>\r\n\r\n    <!--\u041f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 js \u043a\u0430\u043a \u0432\u043d\u0435\u0448\u043d\u0435\u0433\u043e \u0444\u0430\u0439\u043b\u0430-->    \r\n    <script src=\"script.js\"><\/script>\r\n<\/body>\r\n<\/html>\r\n<\/code><\/pre>\r\n\r\n\u041a\u043e\u0434 script.js\r\n\r\n<pre><code>alert(\"Hello world\");\r\nconsole.log(1);\r\n<\/code><\/pre>","_et_gb_content_width":"","footnotes":""},"categories":[256,219],"tags":[230,229],"class_list":["post-3278","post","type-post","status-publish","format-standard","hentry","category-javascript","category-tutorials","tag-javascript-en","tag-js-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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