Find name contain most words

find-name-contain-most-words.ts

import { test, expect } from "vitest";

function isLowercase(char: string): boolean {
  return char >= "a" && char <= "z";
}

function isUppercase(char: string): boolean {
  return char >= "A" && char <= "Z";
}

function countWords(name: string): number {
  let isAbbr = false;
  let count = 0;
  for (const char of name) {
    if (isLowercase(char)) {
      isAbbr = false;
    }

    if (!isAbbr && isUppercase(char)) {
      count += 1;
      isAbbr = true;
    }
  }
  return count;
}

function findNameContainMostWords(dict: string[]): string {
  let maxCount = -1;
  let name = "";
  for (let i = 0; i < dict.length; i++) {
    // count number of word
    const count = countWords(dict[i]!);
    if (maxCount < count) {
      maxCount = count;
      name = dict[i]!;
    }
  }
  return name;
}

test("should return HelloWorldWideWeb", () => {
  expect(
    findNameContainMostWords([
      "Hi",
      "Hello",
      "HelloWorld",
      "HiWorld",
      "HelloWorldWideWeb",
      "HelloWWW",
    ])
  ).toBe("HelloWorldWideWeb");
});

test('should return "SkymakersDigitalLTD"', () => {
  expect(
    findNameContainMostWords([
      "Oursky",
      "OurSky",
      "OurskyLimited",
      "OurskyHK",
      "SkymakersDigitalLTD",
      "Skymake",
    ])
  ).toBe("SkymakersDigitalLTD");
});