If Let Expression

What Is an if let Expression? #

if let is a conditional expression that allows pattern matching. The block of code in the construct executes if the pattern in the condition matches with that of scrutinee expression.

Syntax #

The if let expression begins with an if followed by a let and then a pattern having values enclosed within round brackets. Then an equal to (=) followed by a scrutinee expression. Then there is a block of code enclosed within braces{}.Then there is also an optional else block after this.