How to create a number generator

In this example, you will learn how to create a number generator that will give a random number between 1 and 100.

Here’s how you build it:


Select “Text” and place it on the canvas and set the value to 0; next, select a “Button” and place it next to the 0.rand number gen


With the button selected, go to the Events palette and click “Add event”. 

  1. In the dialog box, click on “Choose Trigger”, hover over the “Mouse” section and select “on Click”.
  2. In “Choose Action”, select “Set value to an element” and select the “0”.
  3. Select the “Calculated” radio button for the value and click “Add expression”.rand number gen
  4. In the value expression builder first field, select the “Rand” from the “Constants” tab and multiply it by 100: this expression will give you an infinite number of results due to the decimals.
  5. We will modify our expression to round the numbers by adding a “Round”. Select the function “Round” and place it in front of the expression; once set, the last field will be enabled; give it the value “0” to eliminate the decimals from the expression. Click “OK” and “OK” to finish creating the event.

Simulate your prototype.