What is the primary difference between for...in and for...of loops?

  • The order of iteration and syntax
  • The type of objects they iterate over
  • They are interchangeable
  • The number of iterations they perform
The primary difference between for...in and for...of loops is in their order of iteration and syntax. For...in is used for iterating over object properties, while for...of is used for iterating over the values of iterable objects, like arrays and strings, and maintains the order.
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