Javascript Array Matrix set zero

Introduction

Make a function such that if an element in an M*N matrix is 0 that row and column are set to 0. 

var zeroMatrix = function(matrix) {
  for(var i = 0; i < matrix.length; i++) {
    for(var j = 0; j < matrix[i].length; j++) {
      if(matrix[i][j] === 0) {
        for(var k = 0; k < matrix[i].length; k++) {
          matrix[i][k] = 0;//from   ww w. j  a  v a  2  s. c  om
        }
        for(var l = 0; l < matrix.length; l++) {
          matrix[l][i] = 0;
        }
      }
    }
  }
  return matrix;
}
console.log(zeroMatrix([[1,1,1,1],[1,1,1,1],[0,1,1,1]]));



PreviousNext

Related