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Pattern Matching in Scala

Mansi Babbar covers one of the most powerful tools available in functional programming languages like Scala:

The match expression consist of multiple parts:

1. The value we’ll use to match the patterns is called a candidate 
2. The keyword match
3. At least one case clause consisting of the case keyword, the pattern, an arrow symbol, and the code to be executed when the pattern matches
4. A default clause when no other pattern has matched. The default clause is recognizable because it consists of the underscore character (_) and is the last of the case clauses

This is similar to the switch statement in C-like languages but offers up a few more things like partial matching of complex objects. Mansi covers some of the ways in which these two things differ.

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