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2 Type coercion in JavaScript

In this chapter, we examine the role of type coercion in JavaScript. We will go relatively deeply into this subject and, e.g., look into how the ECMAScript specification handles coercion.

• 2.1 What is type coercion?
• 2.2 Operations that help implement coercion in the ECMAScript specification
• 2.3 Intermission: expressing specification algorithms in JavaScript
• 2.4 Example coercion algorithms
• 2.5 Operations that coerce
• 2.6 Glossary: terms related to type conversion