Created
August 20, 2015 13:04
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Testing for optional arguments.
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| function sum(a, b, c, d) { | |
| // Note: no `break` needed | |
| switch (arguments.length) { | |
| case 0: a = 1; | |
| case 1: b = 2; | |
| case 2: c = 3; | |
| case 3: d = 4; | |
| } | |
| return a + b + c + d; | |
| } |
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