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javascript - Optimise solution to use 1 array in place of 2 arrays to compare the elements

I am currently using 2 loops to compare each element of the array. Is there a method to optimise this and use only a single loop.

For each element of arrB, I need to find out the total number of elements of arrA that are greater than or equal to it.

Current solution:

arr1=[1,2,3] arr2=[2,4]

var count =0;

for(var i=0;i<arr1.length;i++){
  for(var j=0;j<arr2.length;j++){
       if(arr2[j] >= arr1[i]){
           count++;
    }
  }
  return count;
  count = 0;
}

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