active-data/demo.html at master · forceuser/active-data · GitHub

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<!doctype html>
<html>
	<head>
		<title>active-data demo</title>
	</head>
	<body></body>
		<script type="module">
			import sinon from "./node_modules/sinon/pkg/sinon-esm.js";
			import {Manager, observable, computed, reaction, updatable} from "../src/active-data.js";
			const t = {
				equal (a, b) {
					console.assert(a === b, "expected: %s; actual: %s", b, a);
				},
				comment (...args) {
					console.log(...args);
				}
			};


			const m = new Manager({immediateReaction: true});
			const d = m.makeObservable({arr: []});
			const comp2 = sinon.spy(self => {
				console.log("calc");
				const res = d.arr.filter(i => !i);
				return res;
			});
			m.makeComputed(d, "comp2", comp2);
			d.comp2;
			t.equal(comp2.callCount, 1);
			d.arr = d.arr.concat([true, false, false]);
			console.log("aaaaa");
			const bbbb = d.comp2;
			console.log("bbbbbb");
			t.equal(comp2.callCount, 2);
			d.arr.push("edwedw");
			d.comp2;
			d.comp2;
			t.equal(comp2.callCount, 3);
			console.log("d.comp2", d.comp2);
			// t.comment("d.arr", JSON.stringify(d.arr), d.arr);
			// d.arr.push(true);
			// d.comp2;
			// t.equal(comp2.callCount, 2);
			// d.arr.push(true);
			// d.comp2;
			// t.equal(comp2.callCount, 3);
			// d.comp2;
			// t.equal(comp2.callCount, 3);
			// t.equal(d.comp2.length, 2);
		</script>
	</body>
</html>