javascript-patterns/object-creation-patterns/chaining.html at master · lovejavaee/javascript-patterns · GitHub

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<!doctype html>
<html lang="en">
	<head>
		<title>JavaScript Patterns</title>
		<meta charset="utf-8">
	</head>
	<body>
		<script>
			/* Title: Chaining Pattern
			 Description: it enables you to call methods on an object one after the other
			 */

			var obj = {
				value:1,
				increment:function () {
					this.value += 1;
					return this;
				},
				add:function (v) {
					this.value += v;
					return this;
				},
				shout:function () {
					console.log(this.value);
				}
			};

			// chain method calls
			obj.increment().add(3).shout(); // 5

			// as opposed to calling them one by one
			// obj.increment();
			// obj.add(3);
			// obj.shout();
		</script>
	</body>
</html>