The noCanvas() function in p5.js is used to remove the default canvas that is created by p5.js. This can be used for sketches that don't require a canvas. It accepts no parameters.
Syntax:
javascript
Output:
Reference: https://p5js.org/reference/#/p5/noCanvas
noCanvas()Parameters: This function accepts no parameters. The program below illustrates the noCanvas() function in p5.js: Example:
function setup() {
createCanvas(400, 300);
// Create buttons for creating
// and removing the canvas
createBtn = createButton("Create Canvas");
createBtn.position(30, 20);
createBtn.mouseClicked(createDrawArea);
removeBtn = createButton("Remove Canvas");
removeBtn.position(30, 50);
removeBtn.mouseClicked(removeDrawArea);
}
function removeDrawArea() {
// Wrap noCanvas() in a try-catch
// to prevent error in case there
// exists no canvas to remove
try {
noCanvas();
} catch (e) {
print("No canvas found to remove");
print(e);
}
}
function createDrawArea() {
// Create a canvas with the
// given dimensions
createCanvas(400, 300);
}
function draw() {
clear();
background("green");
textSize(20);
text("This is the canvas area", 50, 130);
text("Canvas height: " + height, 50, 150);
text("Canvas width: " + width, 50, 170);
}