setNumber
Sets the number for the specified screen element.
Your apps will sometimes need to change, or clear, the numbers displayed on screen elements*. setNumber() can be used to update the number on a textInput, textLabel, button or slider screen element.
*The slider design element was contributed by Mike and Mitchell Schmidt.
Examples
Example: Click Counter
Update the number on a button with every click.
// Update the number on a button with every click
button("clickCounter","0");
onEvent("clickCounter", "click", function() {
var count=getNumber("clickCounter")+1;
setNumber("clickCounter", count);
});
textLabel("randomNumber","");
setNumber("randomNumber",randomNumber(0,100));
Example: Where is the mouse click?
Demonstrate setting the number on a slider. Assumes sliders named xPositionSlider and yPositionSlider have been placed on the screen in design mode.
// Demonstrate setting the number on a slider. Assumes sliders named xPositionSlider and yPositionSlider have been placed on the screen in design mode.
onEvent("screen1", "click", function(event) {
setNumber("xPositionSlider",event.offsetX);
setNumber("yPositionSlider",event.offsetY);
});
Syntax
setNumber(id, number)
Parameters
| Name | Type | Required? | Description |
|---|---|---|---|
| id | string | The unique identifier for the screen element. Must begin with a letter, contain no spaces, and may contain letters, digits, - and _. | |
| number | number | The number displayed within the screen element. |
Returns
Tips
- You cannot use
setText()with sliders which require a number to be set.
Found a bug in the documentation? Let us know at support@code.org.
