{"id":3295,"date":"2020-01-29T09:52:58","date_gmt":"2020-01-29T08:52:58","guid":{"rendered":"https:\/\/solidt.eu\/site\/?p=3295"},"modified":"2022-07-25T08:35:42","modified_gmt":"2022-07-25T07:35:42","slug":"javascript-map-object","status":"publish","type":"post","link":"https:\/\/solidt.eu\/site\/javascript-map-object\/","title":{"rendered":"Javascript Map object"},"content":{"rendered":"\n<p><a href=\"https:\/\/medium.com\/front-end-weekly\/es6-map-vs-object-what-and-when-b80621932373\">https:\/\/medium.com\/front-end-weekly\/es6-map-vs-object-what-and-when-b80621932373<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/jsperf.com\/comparing-object-map-methods\">https:\/\/jsperf.com\/comparing-object-map-methods<\/a><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">var map = new Map([[1,2],[3,4]]);\nmap.get(1)\/\/ 2\nmap.has(1);\/\/return boolean value:  true\/false\nmap.set(4,5); \/\/{1=>2, 2=>3, 4=>5}\nmap.delete(1); \/\/{ 2=>3, 4=>5}\nmap.clear(); \/\/{}\nmap.size;\/\/0\n\n\/\/ loop key\/values (fast!)\nlet result = {}\nfor (var [key, value] of map.entries()) {\n  result[key] = value * 2;\n}\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/medium.com\/front-end-weekly\/es6-map-vs-object-what-and-when-b80621932373 https:\/\/jsperf.com\/comparing-object-map-methods<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[5,4,1],"tags":[],"class_list":["post-3295","post","type-post","status-publish","format-standard","hentry","category-javascript","category-programming","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/3295","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/comments?post=3295"}],"version-history":[{"count":2,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/3295\/revisions"}],"predecessor-version":[{"id":3297,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/3295\/revisions\/3297"}],"wp:attachment":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/media?parent=3295"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/categories?post=3295"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/tags?post=3295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}