An iterator is a simple interface for stepping through data. For example, arrays have an iterator property which will return an object that will step through the items in the array. Each call to the next() method on the iterator will return a value property as well as a done property.
So you'd have an iterator attached to the result object,…and you would say .next, that's a method call on your…iterator, and it would give you one more row.…And then later whenever you're ready, you'd call….next again and you'd get another row and another row…and another row, you'd keep calling .next until you'd…consumed all the data.…So it's just a simple interface for stepping through data.…That's what an iterator is.…
This course was created by Frontend Masters. It was originally released on 01/10/2017. We're pleased to host this training in our library.
- The arrow function
- Arrow function variations
- Closures and explicit blocks
- Default values
- Using the gather and spread operators
- Dumping variables
- Concise properties and methods
- Symbols, iterators, and generators
- Optimizing codes for the reader
Skill Level Intermediate
1. Arrow Functions
2. Block Scope
3. Default Values and the Gather/Spread Operators
5. Template Strings
6. Symbols, Iterators, and Generators
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