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使用promise 的简单例子

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<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>Creating a simple promise</title>
		<link rel="stylesheet" href="../assert.css">
		<script src="../assert.js"></script>
	</head>
	<body>
		<script>
			"use script";
			
			const ninjaPromise = new Promise((resolve, reject) => {
			  resolve("Hatori");
			  //reject("An error resolving a promise!");
			});

			ninjaPromise.then(ninja => {
			  assert(ninja === "Hatori", "We were promised Hatori!");
			}, err => {
			  fail("There shouldn’t be an error");
			});
		</script>
	</body>
</html>