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title: isObject()
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---

# isObject()

Checks whether the specified object is a valid object. A valid object is not a DOM element, is not a native browser class (`XMLHttpRequest`) is not falsey, and is not an array, error, function string or a number.

## Signature

`isObject(Object obj)`

## Parameters

**_obj_:** Type: `Object`. The object to check.

## Returns

**Type: `Boolean`** Returns `true` if the object is a valid object, or `false` otherwise.