For Loops in JavaScript Simplified Revision Notes for A-Level OCR Computer Science

Revision notes with simplified explanations to understand For Loops in JavaScript quickly and effectively.

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For Loops in JavaScript

Overview

Loops are used to repeat a block of code a specific number of times, making them useful for tasks involving fixed repetitions.

Key Concepts

Syntax: for(initialisation; condition; increment){ code }

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Example:

for (let i = 0; i < 5; i++) {
  console.log("This is loop iteration " + i);
}

Common Mistakes

Incorrect loop conditions: Ensure the condition allows the loop to exit.

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Key Takeaways

Loops are best for tasks with a fixed number of iterations.

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