Array Type Check
Array Type Check
Arrays are objects in JavaScript, so a broad object check cannot tell you whether a value is really a list. Strings and object-like values can also have a length property, which makes length checks unreliable for validation.
When code receives unknown data from a form, URL, or API response, it often needs to confirm that a value is an array before treating it like a list.
Your task: Complete isListPayload so it returns true only when value is an array. Return false for strings, plain objects, null, and any other non-array value.
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Array Type Check
Arrays are objects in JavaScript, so a broad object check cannot tell you whether a value is really a list. Strings and object-like values can also have a length property, which makes length checks unreliable for validation.
When code receives unknown data from a form, URL, or API response, it often needs to confirm that a value is an array before treating it like a list.
Your task: Complete isListPayload so it returns true only when value is an array. Return false for strings, plain objects, null, and any other non-array value.