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What is Generator?

Generators are functions that can pause and resume execution using yield. They produce lazy sequences on demand, making them ideal for infinite series, custom iterators, async workflows, and cooperative multitasking in JavaScript.

○Generator: typeof generator is object ○Generator: next() yields value ○Generator: next() yields second value ○Generator: empty generator is done ○Generator: typeof generator function is function ○Generator: next() basic ○Generator: next() second value ○Generator: next() done after yield ○Generator: next() with return ○Generator: next() after done ○Generator: yield array ○Generator: yield*○Generator: yield in range ○Generator: yield for...of ○Generator: yield length ○Generator: return()○Generator: return() done ○Generator: return() after next()○Generator: typeof return is function ○Generator: return() value ○Generator: throw() error ○Generator: throw() catch ○Generator: typeof throw is function ○Generator: throw() string ○Generator: throw() catch yield

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Generator: next() after done

Check that next() after done returns {value:undefined,done:true}.

Generator: next() after done

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