JavaScript 中字符与字符串重叠

编写一个函数，它接受两个字符串并显示出现在任一字符串中的字符（不带双精度）。

解决方案

function characteroverlap(array1, array2) {
  let occurrence = {};

  let str = array1.concat(array2);

  // find the count of each character
  array.from(str).foreach((char) => {
    let currentcount = occurrence[char] || 0;
    occurrence[char] = currentcount + 1;
  });

  // return the keys which is the individual character and join.
  const result = object.keys(occurrence);

  return result.join("");
}

console.log(characteroverlap("computer", "circuitemtop"));
console.log(characteroverlap("frontend", "development"));
console.log(characteroverlap("mivrog", "gormiv"));
console.log(characteroverlap("praxet", "xetpar"));
console.log(characteroverlap("stone", "tones"));
console.log(characteroverlap("rescue", "secure"));

结果

> computer
> frontedvlpm
> mivrog
> praxet
> stone
> rescu

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