p5.js clear() function

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The clear() function in p5.js is used to clear the pixels within a buffer. This function only clears the canvas. This function clears everything to make all of the pixels 100% transparent. It can be used to reset the drawing canvas.

Syntax:

clear()

Parameters: This function does not accept any parameter.

Below program illustrates the clear() function in p5.js:

Example: This example uses clear() function to clear the canvas.

function setup() { 
  
    // Create canvas  
    createCanvas(700, 700); 
} 
   
function draw() { 
      
    noStroke(); 
      
    // Draw Ellipse at mouseX and mouseY 
    ellipse(mouseX, mouseY, 20, 20); 
   
    // Set color of the ellipse 
    fill('green'); 
      
    // Set the text size 
    textSize(20); 
      
    // Set the text 
    text("Press Mouse To Clear The Screen", 20, 30); 
} 
   
// Define the mousePressed function 
function mousePressed() { 
    clear(); 
} 