Clean Code Practices: Guard Clauses - Reduce Cognitive Complexity of your code

Introduction

The primary goal of using Guard Clauses is to simplify code and enhance its readability by preventing the main logic of a method from being nested within multiple layers of conditional statements. This approach leads to cleaner, more maintainable, and easier-to-read code.

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Benefits of Guard Clauses

Improved readability: Guard clauses reduce the nesting of conditionals, making the code easier to follow.

Easier maintenance: Fewer indents and nested blocks simplify the modification or extension of the code.

Reduced complexity: Guard clauses help avoid the arrowhead pattern caused by excessive nesting.

Explicit error handling: They clearly indicate the conditions under which a function should terminate early.

Code without Guard Clauses:-

Code with Guard Clauses:-