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CodeSignal

Haskell Foundations: Expressions, Types, and Functions

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Overview

First steps in Haskell for programmers new to functional style. Learn expressions, types, pure functions, GHCi errors, local helpers, and branching while writing small runnable programs.

Syllabus

  • Unit 1: Your First Haskell Program
    • Print Your First Greeting
    • Sequencing Three Lines of Output
  • Unit 2: Core Types and Literals
    • Printing Numbers with Their Types
    • Showing Text and Characters
    • Building a Complete Profile
  • Unit 3: Defining Pure Functions
    • Build Your First Tripling Function
    • Two Functions One Number Shape
    • Averaging Two Numbers Together
  • Unit 4: Inspecting Types and Errors
    • Repairing a Type Mismatch
    • Decoding the Number Constraint
  • Unit 5: Let and Where Bindings
    • Naming Steps to Find Area
    • Stacking Up the Cylinder Volume
  • Unit 6: If Then Else Expressions
    • Flipping Negatives Into Positives
    • Choosing the Right Fare Label
  • Unit 7: Multiway Choices with Guards
    • Finish the Grading Ladder
    • Sorting BMI into Clear Categories

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