$(selector).action() and document ready.
✍️ 3 exercises + code challenge in this lessonThe basic syntax is $(selector).action():
$ is the jQuery function.selector finds HTML elements (CSS-style).action() does something with them.Wrap code in $(function () { ... }); so it runs after the page has loaded.
Most jQuery methods return the jQuery object, so calls can be chained: $("p").addClass("x").fadeIn().
Mastering jQuery Syntax helps you write clean and reliable jQuery code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.
<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
<p>Paragraph one</p>
<p class="special">Paragraph two</p>
<script>
$(function () {
$("p").css("padding", "6px");
$(".special").css({ background: "#FEF08A", fontWeight: "bold" }).append(" ← chained");
});
</script>Check what you learned in “jQuery Syntax”.
Run code when the document is ready.
$( () {
// code
});
Why can jQuery methods be chained?
Chain two calls on all paragraphs: .css("color", "blue") and .addClass("done").
Free sign-in required · Google login available
Stuck on something?
Ask the community in the CodesInTech forum.
Need a developer?
Learning on your own is great — and when you need professional help, our team builds custom software, websites and mobile apps for clients worldwide.
Explore Our Services