The Tor Browser / file comparison
comparison: js/src/Y.js
js/src/Y.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:8cc7dbc35b26 |
|---|---|
| 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/. */ | |
| 4 | |
| 5 // The Y combinator, applied to the factorial function | |
| 6 | |
| 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))); | |
| 10 | |
| 11 // The factorial function is the fixed point of this: | |
| 12 var f = fac => n => (n <= 1) ? 1 : n * fac(n - 1); | |
| 13 | |
| 14 print("5! is " + Y(f)(5)); |
