Parallel assignment in Ruby – gotcha

1. x, y = 1, 2 results in x = 1 and y = 2
2. x = [1, 2, 3] results in x = [1, 2, 3]
3. x, = [1, 2, 3] results in x = 1

So, what would
x, z = [1, 2, 3] result in? x = 1 and y = [2, 3]? I thought so, but no it doesn’t. It results in x = 1 and z =2.

Update: This is where the splat operator (*) comes into picture.

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Tags: parallel, assign, gotcha

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