Rest parameters and spread syntax
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There is also a special array-like object named arguments that contains all arguments by their index. But the downside is that although arguments is both array-like and iterable When ...arr is used in the function call, it “expands” an iterable object arr into the list of arguments. The spread synta
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- There is also a special array-like object named arguments that contains all arguments by their index.
- But the downside is that although arguments is both array-like and iterable
- When ...arr is used in the function call, it “expands” an iterable object arr into the list of arguments.
- The spread syntax internally uses iterators to gather elements, the same way as for..of does.
- Array.from operates on both array-likes and iterables. The spread syntax works only with iterables.
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