Recap - Simple Adder Closure
Part of the Logic & Flow section of Coddy's Rust journey — lesson 63 of 66.
Challenge
Easycreate_adder that takes base_value and returns the result of adding 10 to it using a closure.
Inside the function, create a closure that captures base_value from the environment and adds 10 to it. Call the closure and return its result.
Parameters:
base_value(i32): The number to which 10 will be added
Returns: The result of adding 10 to base_value (i32)
Try it yourself
fn create_adder(base_value: i32) -> i32 {
// Write code here
}
All lessons in Logic & Flow
1Advanced Control Flow
The 'match' ExpressionMatching Multiple ValuesMatching RangesThe 'if let' ExpressionLoops as ExpressionsRecap - Simple Command Parser4Grouping Data with Structs
What is a Struct?Structs OverviewAccessing Struct FieldsMutable StructsStructs as Function ParametersTuple StructsRecap - Create a Book Struct7Handling Errors with 'Result'
What is a 'Result'?Using 'match' with 'Result'is_ok() and is_err()Shortcuts: unwrap and expectThe Question Mark Operator '?'Parsing Strings to NumbersRecap - Safe Division Function10Closures & Anonymous Functions
What is a Closure?Defining a Simple ClosureClosures with ParametersCapturing the EnvironmentRecap - Simple Adder Closure2Introduction to Vectors
What is a Vector?Creating a VectorAdding Elements with pushAccessing Vector ElementsIterating Over a VectorMutable IterationRemoving ElementsRecap - Basic Score Tracker5Key-Value Pairs with Hash Maps
What is a Hash Map?Creating a Hash MapInserting Key-Value PairsAccessing ValuesIterating Over a Hash MapUpdating a ValueRemoving a PairRecap - Word Counter8Project: Simple Item Inventory
Project SetupAdding an ItemChecking StockSelling an ItemPutting it all together