carld · April 22, 2025 09:03
diff --git a/promisemonad.js b/promisemonad.js
 <html>
    <head>
        <style>
            html * {
                font-family: monospace;
            }
        </style>
    </head>
 <body>
    <form onsubmit="return run();">
        <textarea id="input"></textarea>
        <input type="submit"></input>
    </form>
    <div id="output"></div>
 </body>
 <script>
 const ret = x => Promise.resolve(x); //new Promise((s,f) => s(x));
 const bind = (m, f) => m.then(v => f(v));
 const pipe = (fn, ...fns) => fns.reduce(bind, fn);

 const r = pipe( ret(1), x => x * 2, x => x + 1, x => x + 10);
 console.log("Test:", r);

 </script>
 </html>
	<html>
	<head>
	<style>
	html * {
	font-family: monospace;
	}
	</style>
	</head>
	<body>
	<form onsubmit="return run();">
	<textarea id="input"></textarea>
	<input type="submit"></input>
	</form>
	<div id="output"></div>
	</body>
	<script>
	const ret = x => Promise.resolve(x); //new Promise((s,f) => s(x));
	const bind = (m, f) => m.then(v => f(v));
	const pipe = (fn, ...fns) => fns.reduce(bind, fn);

	const r = pipe( ret(1), x => x * 2, x => x + 1, x => x + 10);
	console.log("Test:", r);

	</script>
	</html>