{"id":19355,"date":"2022-11-06T09:35:06","date_gmt":"2022-11-06T04:05:06","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-convert-array-of-paths-into-a-tree-in-javascript-closed\/"},"modified":"2022-11-06T09:35:06","modified_gmt":"2022-11-06T04:05:06","slug":"solved-convert-array-of-paths-into-a-tree-in-javascript-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-convert-array-of-paths-into-a-tree-in-javascript-closed\/","title":{"rendered":"[Solved] Convert array of paths into a Tree in JavaScript [closed]"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

\n
\n
<\/div>\n
\n
\n

First, here’s the solution based on this answer: https:\/\/stackoverflow.com\/a\/57344801\/3807365.
\nExplanation below.<\/p>\n<\/p>\n

\n
\n
const paths = [\"src\", \"src\/components\", \"src\/components\/index.ts\", \"src\/utils\", \"src\/configuration\/config.ts\", \"another\/file.ts\"];\n\nlet agg = {\n  temp: []\n};\n\npaths.forEach(path => {\n  path.split(\"https:\/\/stackoverflow.com\/\").reduce((agg, part, level, parts) => {\n    if (!agg[part]) {\n      agg[part] = {\n        temp: []\n      };\n      agg.temp.push({\n        id: parts.slice(0, level + 1).join(\"https:\/\/stackoverflow.com\/\"),\n        level: level + 1,\n        children: agg[part].temp\n      })\n      \/\/ console.log(agg)\n    }\n    return agg[part];\n  }, agg)\n})\n\nvar result = agg.temp;\nconsole.log(result)<\/code><\/pre>\n
.as-console-wrapper {\n  max-height: 100% !important;\n}<\/code><\/pre>\n<\/div>\n<\/div>\n
Explanation:<\/p>\n
Given a path (splitted to parts) and the result<\/code> which is an empty array []<\/code>
\nwe are building this kind of object (helper object!):<\/p>\n
{\n  \"src\" : {\n    \"utils\" : {\n      \"file.ts\" : {}\n    }, \n    \"components\" : {\n      \"file.ts\" : {}\n    }\n  },\n  \"another\": {\n    \"file.ts\" : {}\n  }\n}\n<\/code><\/pre>\n
We do this step by step as we go on each part of the path.
\nAnd we do this to each path building this lovely tree.
\nSimple enough.<\/p>\n
But as we do, we are creating arrays in the result object (which is under property temp<\/code>) – arrays of items of the same level in the format {id, level, children}.
\nFinally, we ignore this entire helper tree and only return the first level array – which is the result (under property temp<\/code>).<\/p>\n
Once you realize this, you can see the possible error in this method. Can you spot it? What kind of path name will “mess” with the result?<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            1<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved Convert array of paths into a Tree in JavaScript [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] First, here’s the solution based on this answer: https:\/\/stackoverflow.com\/a\/57344801\/3807365. Explanation below. const paths = [“src”, “src\/components”, “src\/components\/index.ts”, “src\/utils”, “src\/configuration\/config.ts”, “another\/file.ts”]; let agg = { temp: [] }; paths.forEach(path => { path.split(“https:\/\/stackoverflow.com\/”).reduce((agg, part, level, parts) => { if (!agg[part]) { agg[part] = { temp: [] }; agg.temp.push({ id: parts.slice(0, level + 1).join(“https:\/\/stackoverflow.com\/”), level: level + … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[457,4614,859,333],"class_list":["post-19355","post","type-post","status-publish","format-standard","hentry","category-solved","tag-algorithm","tag-array-algorithms","tag-data-structures","tag-javascript"],"yoast_head":"\n[Solved] Convert array of paths into a Tree in JavaScript [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-convert-array-of-paths-into-a-tree-in-javascript-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Convert array of paths into a Tree in JavaScript [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] First, here’s the solution based on this answer: https:\/\/stackoverflow.com\/a\/57344801\/3807365. Explanation below. const paths = ["src", "src\/components", "src\/components\/index.ts", "src\/utils", "src\/configuration\/config.ts", "another\/file.ts"]; let agg = { temp: [] }; paths.forEach(path => { path.split("https:\/\/stackoverflow.com\/").reduce((agg, part, level, parts) => { if (!agg[part]) { agg[part] = { temp: [] }; agg.temp.push({ id: parts.slice(0, level + 1).join("https:\/\/stackoverflow.com\/"), level: level + ... 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Explanation below. const paths = [\"src\", \"src\/components\", \"src\/components\/index.ts\", \"src\/utils\", \"src\/configuration\/config.ts\", \"another\/file.ts\"]; let agg = { temp: [] }; paths.forEach(path => { path.split(\"https:\/\/stackoverflow.com\/\").reduce((agg, part, level, parts) => { if (!agg[part]) { agg[part] = { temp: [] }; agg.temp.push({ id: parts.slice(0, level + 1).join(\"https:\/\/stackoverflow.com\/\"), level: level + ... 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