// This snippet mostly exists to reproduce a memory leak // import { bench, run } from "mitata"; const obj = { "id": 1296269, "node_id": "MDEwOlJlcG9zaXRvcnkxMjk2MjY5", "name": "Hello-World", "full_name": "octocat/Hello-World", "owner": { "login": "octocat", "id": 1, "node_id": "MDQ6VXNlcjE=", "avatar_url": "https://github.com/images/error/octocat_happy.gif", "gravatar_id": "", "url": "https://api.github.com/users/octocat", "html_url": "https://github.com/octocat", "followers_url": "https://api.github.com/users/octocat/followers", "following_url": "https://api.github.com/users/octocat/following{/other_user}", "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}", "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}", "subscriptions_url": "https://api.github.com/users/octocat/subscriptions", "organizations_url": "https://api.github.com/users/octocat/orgs", "repos_url": "https://api.github.com/users/octocat/repos", "events_url": "https://api.github.com/users/octocat/events{/privacy}", "received_events_url": "https://api.github.com/users/octocat/received_events", "type": "User", "site_admin": false, }, "private": false, "html_url": "https://github.com/octocat/Hello-World", "description": "This your first repo!", "fork": false, "url": "https://api.github.com/repos/octocat/Hello-World", "archive_url": "https://api.github.com/repos/octocat/Hello-World/{archive_format}{/ref}", "assignees_url": "https://api.github.com/repos/octocat/Hello-World/assignees{/user}", "blobs_url": "https://api.github.com/repos/octocat/Hello-World/git/blobs{/sha}", "branches_url": "https://api.github.com/repos/octocat/Hello-World/branches{/branch}", "collaborators_url": "https://api.github.com/repos/octocat/Hello-World/collaborators{/collaborator}", "comments_url": "https://api.github.com/repos/octocat/Hello-World/comments{/number}", "commits_url": "https://api.github.com/repos/octocat/Hello-World/commits{/sha}", "compare_url": "https://api.github.com/repos/octocat/Hello-World/compare/{base}...{head}", "contents_url": "https://api.github.com/repos/octocat/Hello-World/contents/{+path}", "contributors_url": "https://api.github.com/repos/octocat/Hello-World/contributors", "deployments_url": "https://api.github.com/repos/octocat/Hello-World/deployments", "downloads_url": "https://api.github.com/repos/octocat/Hello-World/downloads", "events_url": "https://api.github.com/repos/octocat/Hello-World/events", "forks_url": "https://api.github.com/repos/octocat/Hello-World/forks", "git_commits_url": "https://api.github.com/repos/octocat/Hello-World/git/commits{/sha}", "git_refs_url": "https://api.github.com/repos/octocat/Hello-World/git/refs{/sha}", "git_tags_url": "https://api.github.com/repos/octocat/Hello-World/git/tags{/sha}", "git_url": "git:github.com/octocat/Hello-World.git", "issue_comment_url": "https://api.github.com/repos/octocat/Hello-World/issues/comments{/number}", "issue_events_url": "https://api.github.com/repos/octocat/Hello-World/issues/events{/number}", "issues_url": "https://api.github.com/repos/octocat/Hello-World/issues{/number}", "keys_url": "https://api.github.com/repos/octocat/Hello-World/keys{/key_id}", "labels_url": "https://api.github.com/repos/octocat/Hello-World/labels{/name}", "languages_url": "https://api.github.com/repos/octocat/Hello-World/languages", "merges_url": "https://api.github.com/repos/octocat/Hello-World/merges", "milestones_url": "https://api.github.com/repos/octocat/Hello-World/milestones{/number}", "notifications_url": "https://api.github.com/repos/octocat/Hello-World/notifications{?since,all,participating}", "pulls_url": "https://api.github.com/repos/octocat/Hello-World/pulls{/number}", "releases_url": "https://api.github.com/repos/octocat/Hello-World/releases{/id}", "ssh_url": "git@github.com:octocat/Hello-World.git", "stargazers_url": "https://api.github.com/repos/octocat/Hello-World/stargazers", "statuses_url": "https://api.github.com/repos/octocat/Hello-World/statuses/{sha}", "subscribers_url": "https://api.github.com/repos/octocat/Hello-World/subscribers", "subscription_url": "https://api.github.com/repos/octocat/Hello-World/subscription", "tags_url": "https://api.github.com/repos/octocat/Hello-World/tags", "teams_url": "https://api.github.com/repos/octocat/Hello-World/teams", "trees_url": "https://api.github.com/repos/octocat/Hello-World/git/trees{/sha}", "clone_url": "https://github.com/octocat/Hello-World.git", "mirror_url": "git:git.example.com/octocat/Hello-World", "hooks_url": "https://api.github.com/repos/octocat/Hello-World/hooks", "svn_url": "https://svn.github.com/octocat/Hello-World", "homepage": "https://github.com", "language": null, "forks_count": 9, "stargazers_count": 80, "watchers_count": 80, "size": 108, "default_branch": "master", "open_issues_count": 0, "is_template": false, "topics": ["octocat", "atom", "electron", "api"], "has_issues": true, "has_projects": true, "has_wiki": true, "has_pages": false, "has_downloads": true, "has_discussions": false, "archived": false, "disabled": false, "visibility": "public", "pushed_at": "2011-01-26T19:06:43Z", "created_at": "2011-01-26T19:01:12Z", "updated_at": "2011-01-26T19:14:43Z", "permissions": { "admin": false, "push": false, "pull": true, }, "security_and_analysis": { "advanced_security": { "status": "enabled", }, "secret_scanning": { "status": "enabled", }, "secret_scanning_push_protection": { "status": "disabled", }, }, }; // Force the string to be 8bit const str = String.fromCharCode( ...JSON.stringify(obj) .split("") .map(a => a.charCodeAt(0)), ); var i = 0; bench("new Response().arrayBuffer() (new string each call, latin1)", async () => { return await new Response(str + i++).arrayBuffer(); }); bench("new Response().arrayBuffer() (new string each call, utf16)", async () => { return await new Response(str + i++ + "😊").arrayBuffer(); }); bench("new Response().arrayBuffer() (existing string, latin1)", async () => { return await new Response(str).arrayBuffer(); }); await run();