jQuery
jQuery is a JavaScript Library that focuses on simplifying DOM manipulation, AJAX calls, and Event handling.
jQuery uses a format, $(selector).action()
to assign an element(s) to an event. To explain it in detail, $(selector)
will call jQuery to select selector
element(s), and assign it to an event API called .action()
.
$(document).ready(function(){
alert("Hello World!");
$("#blackBox").hide();
});
The above code carries out the same function as the following code:
window.onload = function() {
alert("Hello World!");
document.getElementById("blackBox").style.display = "none";
};
Or:
window.addEventListener("load", () => {
alert("Hello World!");
document.getElementById("blackBox").style.display = "none";
});