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Rooted by: Convert Minutes to Hours and Minutes
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  • Fundamentals
    Strings
    Data Types
    Description

    Maybe basic math operations will work faster than slice, so we can find first digit of minutes like this

     Code 
    const minutes = (n) => `${~~(n / 60)}:${~~(n % 60 / 10)}${(n % 60 % 10)}`;
     Test Cases 
    describe("Solution", function(){
  it("Did you  make the correct conversion?", function(){
    Test.assertEquals(minutes(0), "0:00", "better try again");
    Test.assertEquals(minutes(1), "0:01", "better try again");
    Test.assertEquals(minutes(18), "0:18", "better try again");
    Test.assertEquals(minutes(13267), "221:07", "better try again");
    Test.assertEquals(minutes(985), "16:25", "better try again");
    Test.assertEquals(minutes(351), "5:51", "better try again");
    Test.assertEquals(minutes(156113), "2601:53", "better try again");
  });
});
    View Run Output
  • Code
    • const minutes = (n) => `${Math.trunc(n / 60)}:${("0" + (n % 60)).slice(-2)}`;
    • const minutes = (n) => `${~~(n / 60)}:${~~(n % 60 / 10)}${(n % 60 % 10)}`;