The toggleClass() of p5.Element in p5.js is used to toggle the specified class in the element. The toggling of a class means that it would be added or removed depending on the current state.
Syntax:
toggleClass(class)
Parameters: This function accepts a single parameter as mentioned above and described below:
- class: It is a string that denotes the class to be toggled.
The example below illustrates the toggleClass() method in p5.js.
Example: The following HTML code shows the CSS styles that have to be added for the classes to show their effect. The p5.js elements can now use these classes.
<!DOCTYPE html> <html>
<head>
<script src=
</script>
<script src="sketch.js"></script>
<style>
.red {
background-color: red;
}
.border {
border: 10px dashed;
}
</style>
</head>
<body></body>
</html>
|
JavaScript code: The “sketch.js” file contains the p5.js code that demonstrates this method.
function setup() {
canv = createCanvas(550, 300);
textSize(18);
text("Click on the buttons to toggle the " +
"given class of the canvas", 20, 30);
setBtn = createButton("Toggle Color");
setBtn.position(30, 60);
setBtn.mouseClicked(toggleColor);
setBtn = createButton("Toggle Border");
setBtn.position(160, 60);
setBtn.mouseClicked(toggleBorder);
canv.addClass("red");
canv.addClass("border");
} function toggleColor() {
clear();
// Toggle the given class
canv.toggleClass("red");
text("The color class has been toggled", 30, 120);
text("Click on the buttons to toggle the " +
"given class of the canvas", 20, 30);
} function toggleBorder() {
clear();
// Toggle the given class
canv.toggleClass("border");
text("The border class has been toggled", 30, 120);
text("Click on the buttons to toggle the " +
"given class of the canvas", 20, 30);
} |
Output:
Online editor: https://editor.p5js.org/
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/amp/
Reference: https://p5js.org/reference/#/p5.Element/toggleClass