{"id":6387,"date":"2025-06-27T16:44:14","date_gmt":"2025-06-27T21:44:14","guid":{"rendered":"https:\/\/frontendmasters.com\/blog\/?p=6387"},"modified":"2025-06-27T16:44:14","modified_gmt":"2025-06-27T21:44:14","slug":"iterator-helpers-supported-across-all-browsers","status":"publish","type":"post","link":"https:\/\/frontendmasters.com\/blog\/iterator-helpers-supported-across-all-browsers\/","title":{"rendered":"Iterator Helpers Supported Across all Browsers"},"content":{"rendered":"\n<p>Feels notable that <a href=\"https:\/\/web.dev\/blog\/baseline-iterator-helpers?hl=en\">Iterator helpers have become Baseline Newly available<\/a>. The gist is that you can <code>map<\/code> and <code>filter<\/code> on stuff that was annoying or impossible to before. I&#8217;ll copy Jeremy Wagner&#8217;s example:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> posts = <span class=\"hljs-built_in\">document<\/span>.querySelectorAll(<span class=\"hljs-string\">\"ul#specific-list &gt; li\"<\/span>)\n  .values()\n  .filter(<span class=\"hljs-function\"><span class=\"hljs-params\">item<\/span> =&gt;<\/span> item.textContent.includes(<span class=\"hljs-string\">\"kiwi\"<\/span>));\n\n<span class=\"hljs-comment\">\/\/ For-of loops can only be used on iterables, which `posts` is!<\/span>\n<span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-keyword\">const<\/span> post <span class=\"hljs-keyword\">of<\/span> posts) {\n  <span class=\"hljs-built_in\">console<\/span>.log(post.textContent);\n}<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>","protected":false},"excerpt":{"rendered":"<p>Feels notable that Iterator helpers have become Baseline Newly available. The gist is that you can map and filter on stuff that was annoying or impossible to before. I&#8217;ll copy Jeremy Wagner&#8217;s example:<\/p>\n","protected":false},"author":1,"featured_media":6389,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"sig_custom_text":"","sig_image_type":"featured-image","sig_custom_image":0,"sig_is_disabled":false,"inline_featured_image":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[29],"tags":[262,3,291],"class_list":["post-6387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-the-beat","tag-filter","tag-javascript","tag-maps"],"acf":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/frontendmasters.com\/blog\/wp-content\/uploads\/2025\/06\/pexels-photo-2495173.jpeg?fit=1625%2C1300&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/posts\/6387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/comments?post=6387"}],"version-history":[{"count":1,"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/posts\/6387\/revisions"}],"predecessor-version":[{"id":6388,"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/posts\/6387\/revisions\/6388"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/media\/6389"}],"wp:attachment":[{"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/media?parent=6387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/categories?post=6387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/frontendmasters.com\/blog\/wp-json\/wp\/v2\/tags?post=6387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}