Exercise Solutions: Data and Variables¶

1. makeLine()

   Write a function makeLine(size) that returns a line with exactly size hashes.

   1function makeLine(size) {
   2   let line = '';
   3   for (let i = 0; i < size; i++) {
   4      line += '#';
   5   }
   6   return line;
   7}
   

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3. makeRectangle()

   Write a function makeRectangle(width, height) that returns a rectangle with the given width and height.

   1function makeRectangle(width, height) {
   2   let rectangle = '';
   3   for (let i = 0; i < height; i++) {
   4      rectangle += (makeLine(width) + '\n');
   5   }
   6   return rectangle.slice(0, -1);
   7}
   

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5. makeDownwardStairs()

   Write a function makeDownwardStairs(height) that prints the staircase pattern shown, with the given height.

   1function makeDownwardStairs(height) {
   2   let stairs = '';
   3   for (let i = 0; i < height; i++) {
   4      stairs += (makeLine(i+1) + '\n');
   5   }
   6   return stairs.slice(0, -1);
   7}
   

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7. makeIsoscelesTriangle()

   Write a function makeIsoscelesTriangle(height) that returns a triangle of the given height.

   1function makeIsoscelesTriangle(height) {
   2   let triangle = '';
   3   for (let i = 0; i < height; i++) {
   4      triangle += (makeSpaceLine(height - i - 1, 2*i + 1) + '\n');
   5   }
   6   return triangle.slice(0, -1);
   7}
   

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