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Strings in JavaScript Simplified Revision Notes for A-Level OCR Computer Science
Revision notes with simplified explanations to understand Strings in JavaScript quickly and effectively.
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Strings in JavaScript
Overview
Strings are sequences of characters used for text. JavaScript provides several methods for handling and manipulating strings.
Key Concepts
- Basic Properties: Strings have properties like .length.
- Common Methods: .substring(), .toUpperCase(), .toLowerCase().
Example:
let name = "JavaScript";
console.log(name.length); // Outputs 10
console.log(name.toUpperCase()); // Outputs "JAVASCRIPT"
Common Mistakes
- Using == instead of === for comparison: Always use === for strict equality.
Key Takeaways
- Understand common string methods and when to use them.
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