JavaScript break Statement

The break statement in JavaScript is used to immediately exit from a loop or a switch block. When JavaScript encounters a break, it stops the current control flow and resumes execution from the statement following the block.

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Syntax

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Use Case 1: break in a Loop

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Use Case 2: break in a while Loop

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Use Case 3: break in a switch Statement

⚠️ If break is omitted from case 'B', the code will fall through and execute subsequent cases. This is usually not desired unless explicitly intended.

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Use Case 4: Exiting Nested Loops with break

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Key Takeaways

• break is used to exit loops (for, while, do...while) or switch blocks.
• Helps in stopping execution early based on a condition.
• Always use break to prevent fall-through in switch statements.
• Labeled break can terminate nested loops, which is useful for complex logic.