• All this is wrong in TurboFan. (Node 8+)
• Optimization killers
• Introduction
• Some V8 background
• Topics
• 1. Tooling
• 2. Unsupported syntax
• 3. Managing arguments
• 3.1. Reassigning a defined parameter while also mentioning arguments in the body (in sloppy mode only). Typical example:
• 3.2. Leaking arguments:
• 3.3. Assignment to arguments:
• What is safe arguments usage?
• 4. Switch-case
• 5. For-in
• 5.1. The key is not a local variable:
• 5.2. The object being iterated is not a "simple enumerable"
• 5.2.1. Objects that are in "hash table mode" (aka "normalized objects", "dictionary mode" - objects who have a hash table as a backing data structure) are not simple enumerables**
• 5.2.2. The object has enumerable properties in its prototype chain**
• 5.2.3. The object contains enumerable array indices**
• 6. Infinite loops with deep logic exit conditions or unclear exit conditions