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Discussion on: Daily Challenge #266 - Who Likes It?

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djjensen profile image
David Jensen • • Edited

Javascript one-liner.
The cutoff can be changed.

let summarizeNamesAtNumNames = 4;
const likes = (names) =>
  [
    names.length === 0
      ? "no one"
      : names
          .slice(0, summarizeNamesAtNumNames - 1)
          .reduce(
            (acc, name, index) =>
              acc +
              (index === 0
                ? ""
                : index ===
                  Math.min(names.length - 1, summarizeNamesAtNumNames - 2)
                ? " and "
                : ", ") +
              (names.length >= summarizeNamesAtNumNames &&
              index === summarizeNamesAtNumNames - 2
                ? names.length - (summarizeNamesAtNumNames - 2) + " others"
                : name),
            ""
          ),
    "like" + (names.length <= 1 ? "s" : ""),
    "this",
  ].join(" ");

for (let cut = 2; cut < 7; cut++) {
  summarizeNamesAtNumNames = cut;
  console.log(likes([]));
  console.log(likes(["Peter"]));
  console.log(likes(["Jacob", "Alex"]));
  console.log(likes(["Max", "John", "Mark"]));
  console.log(likes(["Alex", "Jacob", "Mark", "Max"]));
  console.log(likes(["Alex", "Jacob", "Mark", "Max", "Joey", "Joe Joe"]));
  console.log(
    likes(["Alex", "Jacob", "Mark", "Max", "Joey", "Joe Joe", "Shabadoo"])
  );
}