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paiza.ioでnode.js その6

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概要

paiza.ioでnode.js、やってみた。
練習問題やってみた。

練習問題

objectをtree表示せよ。

サンプルコード

process.stdin.resume();
process.stdin.setEncoding('utf8');

    let data = {
      "Fish": {
        "trout": {},
        "salmon": {}
      },
      "Tree": {
        "Huge": {
          "sequoia": {},
          "oak": {}
        },
        "Flowering": {
          "redbud": {},
          "magnolia": {}
        }
      }
    };
    function createTreeText(obj) {
      let li = '';
      for (let key in obj) 
      {
        li += '<li>' + key + createTreeText(obj[key]) + '</li>';
      }
      let ul = '';
      if (li) 
      {
        ul = '<ul>' + li + '</ul>';
      }
      return ul || '';
    }
    console.log(createTreeText(data));


実行結果

  • Fish
    • trout
    • salmon
  • Tree
    • Huge
      • sequoia
      • oak
    • Flowering
      • redbud
      • magnolia

成果物

以上。

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