js/src/Y.js@deefc01c0e14
js/src/Y.js
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 // The Y combinator, applied to the factorial function
7 // Return the function that is the fixed point of f.
8 var Y = f => (x => f(v => x(x)(v)))
9 (x => f(v => x(x)(v)));
11 // The factorial function is the fixed point of this:
12 var f = fac => n => (n <= 1) ? 1 : n * fac(n - 1);
14 print("5! is " + Y(f)(5));
