The id() method of p5.Element in p5.js is used to set or return the ID of an element. When no ID is specified as a parameter, it returns the current ID of the element. Only one element on the page can have a particular ID specified to it.
Syntax:
id( id )
Parameters: This function accepts a single parameter as mentioned above and described below.
- id: It is a string that denotes the ID of the element.
Example 1: The example below illustrates the id() method in p5.js.
Javascript
function setup() {   createCanvas(550, 300);   textSize(18);     text("Click on the button to create a new " +        "element with the given ID", 20, 20);     setBtn =     createButton("Create new Element with ID");   setBtn.position(30, 40);   setBtn.mouseClicked(createNewElement);     setBtn =     createButton("Show Last Element ID");   setBtn.position(300, 40);   setBtn.mouseClicked(showID);     id_name = createInput('tmpID');   id_name.position(30, 80); }   function createNewElement() {   clear();     // Create a new p5.Element   tmpElement = createElement("p");     // Get the ID to set   let idToSet = id_name.value();     // Set the ID of the element   tmpElement.id(idToSet);     text("New element created with ID: " +        idToSet, 30, 120);     text("Click on the button to create a new " +        "element with the given ID", 20, 20); }   function showID() {   clear();     // Get the ID of the element   let setID = tmpElement.id();     // Display the ID   text("The ID of the last element is: " +        setID, 30, 120);     text("Click on the button to create a new " +        "element with the given ID", 20, 20); } |
Output:
Example 2:
Javascript
function setup() {     // Create a new canvas   canv = createCanvas(550, 300);     // Set the ID of the canvas   canv.id("newCanvas");     textSize(18);   text("Click on the button to show the ID " +        "of the canvas element", 20, 20);     setBtn =     createButton("Show ID of the canvas");   setBtn.position(30, 40);   setBtn.mouseClicked(showID); }   function showID() {   clear();     // Get the ID of the element   let setID = canv.id();     // Display the ID   text("The ID of the canvas is: " +        setID, 20, 80);     text("Click on the button to show the ID " +        "of the canvas element", 20, 20); } |
Output:
Online editor: https://editor.p5js.org/
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5.Element/id
Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
