Created
November 18, 2018 17:00
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Write recusive function to read comments
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const comments = [ | |
{ id: 1, original_id: null, upvotes: 10, text: 'Hi..' }, | |
{ id: 2, original_id: null, upvotes: 0, text: 'Je..' }, | |
{ id: 3, original_id: 1, upvotes: 0, text: 'Di..' }, | |
{ id: 4, original_id: 1, upvotes: 7, text: 'Si..' }, | |
{ id: 5, original_id: 1, upvotes: 5, text: 'Op..' }, | |
{ id: 6, original_id: null, upvotes: 2, text: 'Op..' }, | |
{ id: 7, original_id: 6, upvotes: 2, text: 'Op..' }, | |
{ id: 8, original_id: 5, upvotes: 3, text: 'Op..' }, | |
{ id: 9, original_id: 1, upvotes: 3, text: 'Op..' } | |
] | |
function getChildren(original_id) { | |
return getComments(comments.filter(comment => comment.original_id === original_id)) | |
} | |
function getComments(comments) { | |
const replies = [] | |
for (const comment of comments) { | |
replies.push(getChildren(comment.id)) | |
} | |
return replies | |
} | |
console.log(getComments(comments)) // output [ [ [], [], [ [] ], [] ], [], [], [], [ [] ], [ [] ], [], [], [] ] |
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