Pattern matching
Patterns destructure data and assert shape at the same time.
What you will be able to do
- Match tuples with {a, b} = ....
- Use ^ to pin a value.
- Underscore ignores a part.
In plain English
Patterns destructure data and assert shape at the same time.
- Match tuples with {a, b} = ....
- Use ^ to pin a value.
- Underscore ignores a part.
{status, value} = {:ok, 42}
{:ok, number} = {:ok, 7}
IO.inspect({status, value, number})Your turn
EasyExplain it back
Answer from memory: Which operator pins an existing value in a pattern?
TEXT · starter
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Knowledge checkQuestion 1
Which operator pins an existing value in a pattern?
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