{"id":30637,"date":"2019-09-09T21:10:43","date_gmt":"2019-09-09T18:10:43","guid":{"rendered":"http:\/\/kamil-abzalov.com\/?p=30637"},"modified":"2020-04-11T22:03:33","modified_gmt":"2020-04-11T19:03:33","slug":"new-javascript-features-overview-part-one","status":"publish","type":"post","link":"https:\/\/kamil-abzalov.com\/en\/tutorials\/javascript\/new-javascript-features-overview-part-one\/","title":{"rendered":"New javascript features overview. Part one"},"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;New javascript features overview. 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One of the largest ECMAScript update for developers is ECMAScript 2015 (ECMAScript 6). Today we&#8217;ll consider some of new features of ECMAScript.<br \/>\n[\/et_pb_text][et_pb_video src=&#8221;https:\/\/www.youtube.com\/watch?v=cHfh8bnSNOQ&#8221; _builder_version=&#8221;3.27.4&#8243; z_index_tablet=&#8221;500&#8243; box_shadow_horizontal_tablet=&#8221;0px&#8221; box_shadow_vertical_tablet=&#8221;0px&#8221; box_shadow_blur_tablet=&#8221;40px&#8221; box_shadow_spread_tablet=&#8221;0px&#8221;][\/et_pb_video][et_pb_text _builder_version=&#8221;3.27.4&#8243; z_index_tablet=&#8221;500&#8243; text_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; text_text_shadow_vertical_length_tablet=&#8221;0px&#8221; text_text_shadow_blur_strength_tablet=&#8221;1px&#8221; link_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; link_text_shadow_vertical_length_tablet=&#8221;0px&#8221; link_text_shadow_blur_strength_tablet=&#8221;1px&#8221; ul_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; ul_text_shadow_vertical_length_tablet=&#8221;0px&#8221; ul_text_shadow_blur_strength_tablet=&#8221;1px&#8221; 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header_4_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_5_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_5_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_5_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_6_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_6_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_6_text_shadow_blur_strength_tablet=&#8221;1px&#8221; box_shadow_horizontal_tablet=&#8221;0px&#8221; box_shadow_vertical_tablet=&#8221;0px&#8221; box_shadow_blur_tablet=&#8221;40px&#8221; box_shadow_spread_tablet=&#8221;0px&#8221;]In this lesson we&#8217;ll look at some modern Javascript features:<\/p>\n<ul>\n<li>variables (new keywords let and const)<\/li>\n<li>arrow functions, functions execution context<\/li>\n<li>template variables (simplification strings concatenation)<\/li>\n<li>destructuring<\/li>\n<li>functions params (default params, rest params)<\/li>\n<li>promises<\/li>\n<\/ul>\n<p>[\/et_pb_text][et_pb_dmb_code_snippet title=&#8221;Code lesson&#8221; 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