Nodejs Array Fill fill(n,v)

Method Source Code

var n = process.argv[2],
   base = process.argv[3],/*from  ww  w.  j ava 2 s  .co m*/
   decoration = process.argv[4];

Array.prototype.fill = function(n,v) {
    n = n || this.length;
    for( var i = 0; i < n; i++ )  {
        this[i] = v === undefined ? i : v;
   }
    return this;
};

var leftPadding = Math.floor(n / 2);

for (var i = 1; i <= n; i = i + 2, leftPadding = leftPadding - 1) {
   console.log( [].fill(leftPadding, ' ').join('') + [].fill(i, decoration).join('') );
}

console.log( [].fill(Math.floor(n / 2) - 1, ' ').join('') + [].fill(3, base).join('') );

Related

1. fill( size, m, n )

   function randomNumber (m,n)
     m = parseInt(m);
     n = parseInt(n);
     return Math.floor( Math.random() * (n - m + 1) ) + m;
   Array.prototype.fill = function( size, m, n )
    var i;
   ...
   

2. fill( val )

   Array.prototype.fill = function( val ) {
     var len = this.length, i;
     if(val instanceof Array){
       for( i = len-1; i >= 0; i--){
         this.push(val);
     } else {
       for( i = 0; i < len; i++){
         this[i] = val;
   ...
   

3. fill(first, last, value)

   Array.prototype.fill = function (first, last, value) {
       var i;
       for (i = first; i <= last; i++) {
           this[i] = value;
   

4. fill(n, get)

   Array.prototype.fill = function(n, get)
       for (var i = 0; i < n; i++)
           this[i] = get(i)
       return this
   

5. fill(value)

   Array.prototype.fill = function (value) {
       var size = this.length;
       while (size > 0) {
           this[--size] = value;
       return this;
   };
   

6. fill(value)

   Array.prototype.fill = function(value) {
       if (this == null) {
           throw new TypeError('this is null or not defined');
       var O = Object(this);
       var len = O.length >>> 0;
       var start = arguments[1];
       var relativeStart = start >> 0;
       var k = relativeStart < 0 ?
   ...
   

7. fill(x, y, v, starti, startj)

   Array.prototype.fill = function (x, y, v, starti, startj) {
     if ( ! starti ) {
       starti = 0;
     if ( ! startj ) {
       startj = 0;
     var matrix = this;
     for ( var i = starti; i <= x; i++ ) {
   ...