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Check array in JS - is list sorted? [duplicate]

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13 3 This question already has an answer here: Check if an array is descending, ascending or not sorted? 6 answers Check if array values are ascending or descending 1 answer I need to create a program that checks the list in the array is sorted. I have three input data: 1,2,3,4,5 1,2,8,9,9 1,2,2,3,2 So here is my code: let sorts = +gets(); // 3 let list = ; for (let i = 0; i < sorts; i++) { list[i] = gets().split(',').map(Number); // The Array will be: [ [ 1, 2, 3, 4, 5 ], [ 1, 2, 8, 9, 9 ], [ 1, 2, 2, 3, 2 ] ] } for (let i = 0; i < list[i][i].length; i++){ if (list[i][i] < list[i][i +1