JavaScript Loop Through Nested Array Elements With JavaScript loop through nested dictionary python,loop through nested object javascript,

I'm trying to loop through nested arrays to determine if an element in the array is either "open" or "senior":

function openOrSenior(data) {

  for (let i = 0; i <= data.length; i++) {

    let dataElement = data[i];

    for (let j = 0; j <= dataElement.length; j++) {

      if (dataElement[0] >= 55 && dataElement[1] > 7) {

        return ["Senior"];

      }

      return ["Open"];

    }
  }
}

Given the input of

[[18, 20],[45, 2],[61, 12],[37, 6],[21, 21],[78, 9]]

The function should output

["Open", "Open", "Senior", "Open", "Open", "Senior"]

But currently it looks like it's only looping through the first element in the main array ([18, 20]) because my function is only returning:

["Open"]

Why is this function failing to continue to loop through the other nested arrays and return either "Open" or "Senior"? Possibly a problem with the scope?

https://www.codewars.com/kata/categorize-new-member/train/javascript

I was trying to implement what I found here, which suggested a for-loop within a for-loop.

Answer:1

You are returning whenever the check succeeds or not, and you've got a redundant for loop. You should iterate the array with a single for loop, and according to the check push Senior or Open to the result array. In the end return the result array.

function openOrSenior(data) {
  const result = [];

  for (let i = 0; i < data.length; i++) {
    const dataElement = data[i];

    if (dataElement[0] >= 55 && dataElement[1] > 7) {
      result.push("Senior");
    } else result.push("Open");
  }

  return result;
}

console.log(openOrSenior([[18, 20],[45, 2],[61, 12],[37, 6],[21, 21],[78, 9]]));

Answer:2

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