What is the best way to condense this code snippet into just a single line?

I am currently working with an array of objects and my main objective is to eliminate duplicates. I have implemented a dictionary as a "filter" mechanism but I am struggling to find alternative ways to refactor this process. I am aware that there must be a more efficient solution out there. Can someone help me figure it out? Dealing with a dictionary in this scenario is proving to be quite challenging.

filterFunc(object: any): void {
  const filter = {};
  object.forEach(obj => {
    if (!filter[obj.id]) {
      filter[obj.id] = true;
    }
  }
}

I am aware of the Array.prototype.filter method, but my challenge lies in filtering out values within an object. Hence, I have not been able to devise a straightforward solution in that context.

angulartypescriptdictionaryconditional-statements

Answer №1

One effective approach is using the reduce method

filterUnique(list: Array<any>): void {
 return list.reduce((acc, curr) => {
      if (!acc[curr.id]) {
        acc[curr.id] = true;
      }
      return acc;
    }, {});
}

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