Nested Statements in JavaScript Simplified Revision Notes for A-Level OCR Computer Science

Revision notes with simplified explanations to understand Nested Statements in JavaScript quickly and effectively.

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Nested Statements in JavaScript

Overview

Nested statements in JavaScript involve placing statements like loops or conditionals within each other to handle more complex logic.

Key Concepts

Nested if statements: Used for multiple conditions.
Nested loops: Useful for iterating through multidimensional arrays.

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Example:

for (let i = 0; i < 3; i++) {
  for (let j = 0; j < 2; j++) {
    console.log("i=" + i + ", j=" + j);
  }
}

Common Mistakes

Too many nested levels: Excessive nesting can make code hard to read.

infoNote

Key Takeaways

Nested statements are powerful but should be used judiciously for readability.

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