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v8.dev
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| | In JavaScript, arrays are predefined objects, where the indexes are the arrays properties. They can hold a collection of values with differing data types. The array is a go-to data structure for common list related tasks.
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| | Explore the inner workings of the V8 JavaScript engine, from data types to memory allocation. Gain insights into tagged pointers, hidden classes, and optimization techniques for enhanced JavaScript performance.
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| | v8.dev
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| This article describes how V8 chooses optimal in-memory representations for various JavaScript values, and how that impacts the shape machinery - all of which helps explain a recent V8 performance cliff in React core.