Fun with algorythms

buildGrid.js

/**
* Author: Meshkov Aleksey (tomeshkov@gmail.com)
*/

// Compressed code (with http://jscompress.com/):

function buildGrid(a,b,c){a=a||"1";b=b||"0";c=Math.abs(c)||8;var d,e,f="";for(var g=0;g<c;g++){d=g%2?a:b;f+=d+" ";for(var h=0;h<c-1;h++){e=g%2?b:a;f+=e+" "}console.log(f);f=""}}


// Uncompressed code:

/**
* buildGrid: draws matix with the specified parameters
  -> @evenChar
    type: String
    description: Any even character to draw with;

  -> @oddChar
    type: String
    description: Any odd character to draw with;

  -> @num
    type: Number
    description: Any positive number. Sets rows and cols length

*/

function buildGrid(evenChar, oddChar, num) {

  // Define default params;
  evenChar = evenChar || '1';
  oddChar = oddChar || '0';

  // We also want user to pass only positive numbers
  num = Math.abs(num) || 8;

  var ch1, ch2, row = '';

  // loop for building rows
  for(var i = 0; i < num; i++) {
    ch1 = i % 2 ? evenChar : oddChar;
    row += ch1 + ' ';

    // loop for building columns
    for(var j = 0; j < num - 1; j++) {

      // invert if case
      ch2 = i % 2 ? oddChar : evenChar;
      row += ch2 + ' ';
    }

    // draw row
    console.log(row);

    //reset variable
    row = '';
  }
}