readyState Property

Internet Development Index

Retrieves a value that indicates the current state of the object.


Scripting[ sState = ] object.readyState

Possible Values

sStateString that receives one of the following values.
uninitializedObject is not initialized with data.
loadingObject is loading its data.
loadedObject has finished loading its data.
interactiveUser can interact with the object even though it is not fully loaded.
completeObject is completely initialized.

The property is read-only. The property has no default value.


An object's state is initially set to uninitialized, and then to loading. When data loading is complete, the state of the link object passes through the loaded and interactive states to reach the complete state.

The states through which an object passes are determined by that object; an object can skip certain states (for example, interactive) if the state does not apply to that object.

Data source objects and databound elements are normally populated asynchronously, and certain programmatic operations can only be performed reliably on databound objects when they are ready for use. Therefore, the appropriate code should be written to confirm the readyState of objects prior to performing certain operations on them. For example, walking the rows of a table should not be attempted until after the table has reached the complete state.

The readyState property enables the status of an object to be tested. The correct place to test the readyState property is in the event handler for onreadystatechange. Similarly, a data source object (DSO) fires the ondatasetcomplete event to notify the Web page that the dataset is ready for programmatic operation.

Standards Information

There is no public standard that applies to this property.

Applies To

document, FRAME, IFRAME, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=hidden, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, LINK, SCRIPT, TABLE, TBODY, TD, TFOOT, TH, THEAD, TR

See Also