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The Miracle of Generators • Bodil Stokke • YOW! 2015
Learn how ES6 generators & promises revolutionize async JavaScript, enabling cleaner code through lazy sequences, custom iterators & elegant async handling patterns.
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JavaScript ES6 generators provide an elegant way to work with iterators and asynchronous operations
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Generators can be used to create lazy sequences and infinite iterables while maintaining clean, readable code
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Promises in ES6 standardize asynchronous operations, offering a cleaner alternative to callback hell
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The combination of generators and promises enables writing asynchronous code that looks synchronous
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The
yield
keyword allows generators to pause execution and resume later, making them ideal for handling async operations -
ES6 introduces the Symbol.iterator method, allowing objects to define custom iteration behavior
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The
for...of
loop provides a standard way to iterate over any object that implements the iterator protocol -
Generators can be used to implement monadic patterns similar to those found in functional programming languages like Haskell
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The
fetch
API combined with generators offers a clean approach to making HTTP requests and handling responses -
Generator-based code can be more composable and maintainable than traditional callback or promise-based approaches
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Custom iterator implementations can be used to create powerful abstractions like lazy evaluation and infinite sequences