How can I solve the "return true if water drank day bigger than 4 of each week in multi-dimensi-CodePudding

Fix the function adequateWaterTracker. adequateWaterTracker should return true if ALL the the weeks in the calendar array having more days in the week that you drank water than you didn't.

For example, in this week, [0, 0, 3, 1, 0, 4, 0], each day represents how many cups of water you drank that day. In this example, there were only 3 days where you drank at least one cup of water.

A calendar is represented by multiple weeks, [[0, 0, 3, 1, 0, 4, 0], [1, 2, 1, 2, 1, 3, 1]].

If you drank water for at least 4 days of water for every week in the calendar, then return true. Otherwise, return false.

I know that I should add statement like if every week water counter is more than it will 4 return true. But I couldn't. Where should I add it and How?

function adequateWaterTracker(calendar) {
  let noWater = 0;
  let water = 0;
debugger
  for (let i = 0; i < calendar.length; i  ) {
    const week = calendar[i];
    for (let j = 0; j < week.length ; j  ) {
      const day = week[j];
      if (day=== 0 ) {
        noWater  ;
      } else {
        water  ;
      }

    }

  }
return noWater < water
}

const calendar1 = [
  [0, 0, 3, 1, 0, 4, 0],
  [1, 2, 1, 2, 1, 3, 1],
];

console.log(adequateWaterTracker(calendar1)); // false

const calendar2 = [
  [1, 1, 1, 1, 1, 1, 1],
  [0, 0, 0, 0, 0, 1, 1],
];

console.log(adequateWaterTracker(calendar2)); // false

const calendar3 = [
  [1, 1, 1, 1, 0, 0, 0],
  [1, 1, 1, 1, 0, 0, 0],
];

console.log(adequateWaterTracker(calendar3)); // true

CodePudding user response：

You can every method to check if all the week array achieves a specific condition and on each week array, you can filter to filter the days which is more or equal to one, then get the length of the array and check if it's equal or more than 4.

const adequateWaterTracker = (calendar) => calendar.every(w => w.filter((d) => d >= 1).length >= 4)

const calendar1 = [
  [0, 0, 3, 1, 0, 4, 0],
  [1, 2, 1, 2, 1, 3, 1],
];

console.log(adequateWaterTracker(calendar1)); // false

const calendar2 = [
  [1, 1, 1, 1, 1, 1, 1],
  [0, 0, 0, 0, 0, 1, 1],
];

console.log(adequateWaterTracker(calendar2)); // false

const calendar3 = [
  [1, 1, 1, 1, 0, 0, 0],
  [1, 1, 1, 1, 0, 0, 0],
];

console.log(adequateWaterTracker(calendar3)); // true