CODE EXAMPLE FOR JAVASCRIPT

javascript sort multidimensional array by sum

/*//*\___________________l4r3f4c3@proton.me________________/|**/
/**/  Array.prototype.sort2d = function(column) {              //
/**/  column = typeof column === "undefined" ? 0 : column      // 
/**/  return this.sort((a, b) => a[column]-b[column]); }       //
/**/  const unsorted2DArray = [[3,1,1,1],[9,3,3,3],[6,2,2,2]]  //
/**/  sorted2DArray = unsorted2DArray.sort2d()                 //
/**/  //sorted2DArray = [ [3,1,1,1],[6,2,2,2],[9,3,3,3] ]      //
/*//*======================/*//*/=========================/||*/