Nodejs Array Max Matrix matrix(rows, cols, initial)

Method Source Code

Array.prototype.matrix = function (rows, cols, initial) {

    var arr = [];
    for (var i = 0; i < rows; i++) {
        var columns = [];
        for (var j = 0; j < cols; j++) {
            columns[j] = initial;//  w ww  .j a v a 2s .c o m
        }
        arr[i] = columns;
    }
    return arr;
}

var matrix = [].matrix(3, 3, 10);

console.log(matrix);


arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

result = arr.reduceRight(function reduce(sum, value) {
    return "" + sum + value;
});

console.log(result);

Related

1. max2d( si, ei, sj, ej, calc_maxm, update_array )

   Array.prototype.max2d = function ( si, ei, sj, ej, calc_maxm, update_array ) {
     var maxm = 0.0;
     for ( var ip = si; ip <= ei; ip++ ) {
       for ( iq = sj; iq <= ej; iq++ ) {
         if ( calc_maxm ) {
           this[ip][iq] = calc_maxm.call(this,this[ip][iq]);
         if ( this[ip][iq] > maxm ) {
           maxm = this[ip][iq];
   ...
   

2. maxChildren(childrenPos)

   Array.prototype.maxChildren = function(childrenPos) {
     if (childrenPos.length == 1) {
       return childrenPos[0];
     if (this[childrenPos[0]] >= this[childrenPos[1]]) {
       return childrenPos[0];
     } else {
       return childrenPos[1];