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let x = 5;
let y = 2;
let z;
let m;
function setup() {
m = createCanvas(400, 400);
z = createCanvas(400, 400);
}
function draw() {
z.background(220);
m.background(51);
a = swap(x, y);
console.log("x: " + a.a + " y: " + a.b);
noLoop();
}
p5.prototype.swap = function(a, b) {
let tmp = a;
a = b;
b = tmp;
return {a, b};
}