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  1. const string = `fizz = 3
  2. buzz.one = item1
  3. buzz.one = item2
  4. buzz.one.two = 123
  5. fizzbuzz.root.a.b.c = 13`;
  6.  
  7. let result = {};
  8.  
  9. const splited = string.split("\n");
  10.  
  11. function insertIntoTree(tree, keyParts, value) {
  12.   let current = tree;
  13.  
  14.   for (let i = 0; i < keyParts.length - 1; i++) {
  15.     const part = keyParts[i];
  16.  
  17.     if (!current[part]) {
  18.       current[part] = {};
  19.     }
  20.  
  21.     current = current[part];
  22.   }
  23.  
  24.   const lastKey = keyParts[keyParts.length - 1];
  25.  
  26.   if (current.hasOwnProperty(lastKey)) {
  27.     if (!Array.isArray(current[lastKey])) {
  28.       current[lastKey] = [current[lastKey]];
  29.     }
  30.     current[lastKey].push(value);
  31.   } else {
  32.     current[lastKey] = value;
  33.   }
  34. }
  35.  
  36. splited.forEach((line) => {
  37.   const [key, value] = line.split("=").map((s) => s.trim());
  38.  
  39.   const parsedValue = isNaN(value) ? value : Number(value);
  40.  
  41.   const keyParts = key.split(".");
  42.  
  43.   insertIntoTree(result, keyParts, parsedValue);
  44. });
  45.  
  46. console.log(JSON.stringify(result, null, 2));
  47.  
Success #stdin #stdout 0.03s 17456KB
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{
  "fizz": 3,
  "buzz": {
    "one": [
      "item1",
      "item2"
    ]
  },
  "fizzbuzz": {
    "root": {
      "a": {
        "b": {
          "c": 13
        }
      }
    }
  }
}
https://ideone.com/d3M3U3
language:
JavaScript (SMonkey 60.2.3)
created:
8 days ago
visibility:
public

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