Get data from each array of array with sequence output

Question

i am trying to get sequence index of each array of array like I have an element of the array and that 5 arrays have multiple elements and I want to get the first index of each array then the second and so.

below is my array data

const arrData = [[1,2,4,6],[3,8,7],[12,13],[],[9,10]];

and my expected outout [1,3,12,9,2,8,13,10,4,7,6]

give me some sort of solution to fix my issue

Answer 1

Following might work:

const src = [[1,2,4,6],[3,8,7],[12,13],[],[9,10]],

      pickByOne = arr => {
        const result = [],
              {length} = arr.flat()
        while(result.length < length){
          for(a of arr){
            a.length && result.push(a.shift())
          }
        }
        return result
      }
      
console.log(pickByOne(src))