Go to the proper folder

cd dr_name

And run in a console:

The program is showing random poker hand.

node deal.js

There are 8 basketballs and 1 scale. 7 of them weigh the same. 1 of them has a different weight, (it's heavier or lighter). How do you find the odd ball with 2 weighs? The program is showing the way.

Enter in console:

node scale.js

Do you like treasure hunts? There is an array in board.js. The values in the array are clues. Each cell contains an integer between 11 and 55; for each value the ten's digit represents the row number and the unit's digit represents the column number of the cell containing the next clue. Starting in the upper left corner (at 1,1), use the clues to guide your search of the array. (The first three clues are 11, 34, 42). The treasure is a cell whose value is the same as its coordinates. Your program should output the cells it visits during its search, and a message indicating where you found the treasure.

node app.js

There is an array in board.js. X – border, 0 – boards object can travel, 1 – bouncing object. The program is to show how the object would travel and bounce against the walls. The program is to end when object comes back to original position.

node app.js

There is an array in board.js. Y – when bouncing objects enters it move it to random direction other that it came and Y turns into 0, X – border, 0 – boards object can travel, 1 – bouncing object. The program is to show how the object would travel and bounce against the walls. Bouncing objects starts in any corner. 1 and Y position may vary.

node app.js