KAPLAY Docs, onError

(action: (err: Error) => void): KEventController

param action- The function that runs when the program errors.

// Create custom error handler
onError((err) => {
    drawRect({
        width: width(),
        height: height(),
        pos: center(),
        color: RED,
        anchor: "center",
    });

    drawText({
        text: err.message,
        size: 48,
        width: width()/2,
        anchor: "center",
        align: "center",
        pos: center(),
        color: BLACK,
    });
});

// cause common error
let pos = add([
    pos(),
]);

returns The event controller.

since v3000.0

group Events