Nested Statements in JavaScript (OCR A-Level Computer Science): Revision Notes

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.

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.