Exercise Solutions: Data and VariablesΒΆ

  1. makeLine()

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

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    function makeLine(size) {
   let line = '';
   for (let i = 0; i < size; i++) {
      line += '#';
   }
   return line;
}

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  1. makeRectangle()

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

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

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  1. makeDownwardStairs()

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

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

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  1. makeIsoscelesTriangle()

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

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

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