Created
September 2, 2018 23:43
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YourJS candidate function: copySign()
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| function copySign(a, b) { | |
| return (a < 0 || 1 / a < 0) === (b < 0 || 1 / b < 0) ? a : -a; | |
| } | |
| //\\ | |
| copySign(4, -0); // -> -4 | |
| //\\ | |
| copySign(-8, -0); // -> -8 | |
| //\\ | |
| copySign(0, -1); // -> -0 | |
| //\\ | |
| copySign(-0, -1); // -> -0 | |
| //\\ | |
| copySign(-0, 1); // -> 0 | |
| //\\ | |
| copySign(-0, 0); // -> 0 | |
| //\\ | |
| copySign(0, -0); // -> -0 | |
| //\\ | |
| copySign(-0, -0); // -> -0 | |
| //\\ | |
| copySign(0, 0); // -> 0 |
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https://www.yourjs.com/console?gist=e1dc5ccb4771b1df5f3ed4f378465aac&file=copySign.js