Primitives vs Reference Types in depth

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  • proposal-record-tuple

    ECMAScript proposal for the Record and Tuple value types. | Stage 2: it will change!

    The idea of a "primitive" is a little tricky. They can be simple, or complex as seen with strings. Strings are not just a single value, rather a collection of 0 or more individual character values. So while strings are primitives, they also have internal properties like character at index 0, or character at index 3 (which are accessible as these indexed properties). Similarly symbols are themselves a unique value, but along with that they also have a description property which also makes them more object-like. And once we have Records and Tuples, which are primitives, the lines blur even more.

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