isObject() function

Determines whether a value is a non-array object.

Signature

export declare function isObject(value: unknown): boolean;

Parameters

Parameter	Type	Description
value	unknown	The value to test.

Returns

boolean

true if the value is a non-array object, false otherwise.

Remarks

This function distinguishes between objects and arrays, which is crucial when processing JSON structures where both use the object type but require different handling.

Returns true for: plain objects, class instances, null and other object types.

Returns false for: arrays, primitives, and functions.

Note: Arrays in JavaScript are objects, so this function explicitly excludes them using Array.isArray(). Use isJsonObject() for stricter JSON object validation that also excludes undefined and null.

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