javascript过滤出数组中的子字符串元素

var data = ["a", "a.b.c", "a.b", "a.e", "a.b.d"];

var res = [...new Set(data)].filter(val => !data.find(s => s !== val && s.startsWith(val)));

console.log(res)

var obj = ["a", "a.b.c", "a.b", "a.e", "a.b.d"]

var result = obj.reduce((deduped, item) => {
  if (deduped.some(s => s.includes(item))) return deduped;
  
  const replace = deduped.findIndex(s => item.includes(s));
  if (replace !== -1) {
    deduped.splice(replace, 1, item)
  } else {
    deduped.push(item)
  }
  
  return deduped;
}, []);

console.log(result)

var obj = ["a", "a.b.c", "a.b", "a.e", "a.b.d"],
    filtered = obj.filter((element, i, arr) => !arr.some((o, oi) => {
      return oi === i ? false : o.includes(element);
    }));

console.log(filtered);

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