p5.js | removeAttribute() Function

The removeAttribute() function is an inbuilt function which is used to remove an attribute on the specified element.
This function requires p5.dom library. So add the following line in the head section of the index.html file. 

javascript

<script language="javascript"
    type="text/javascript" src="path/to/p5.dom.js">
</script>

Syntax:

removeAttribute( attr )

Parameters: This function accepts single parameter attr which holds the value of attribute which need to removed.
Below example illustrates the removeAttribute() function in p5.js:
Example:

javascript

var input_val;
var checkbox;
function setup() {

    // Canvas size 400*400
    createCanvas(400, 200);

    // Set background color
    background('green');

    // Create an input element with its value
    input_val = createInput('Welcome to GeeksforGeeks', true);

    // Set the position of div element
    input_val.position(30, 80);

    // Set width of input field
    input_val.style('width', '250px');

    // Set font-size of input text
    input_val.style('font-size', '20px');

    // Set margin property
    input_val.style('margin-left', '50px');

    // Create a checkbox
    checkbox = createCheckbox('enable', true);

    // Set the status of checkbox
    checkbox.changed(enableInputText);
}

function enableInputText() {

   if (this.checked()) {

       // Re-enable the button
       input_val.removeAttribute('disabled');
   }
  else {

      // Disable the button
      input_val.attribute('disabled', '');
   }
 }

Output:

• Click to enable the Checkbox:
  

• Click to disable the Checkbox: