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Word JavaScript API online-only requirement set

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The WordApiOnline requirement set is a special requirement set that includes features that are only available for Word on the web. APIs in this requirement set are considered to be production APIs for the Word on the web application. They follow Microsoft 365 developer support policies. WordApiOnline APIs are considered to be "preview" APIs for other platforms (Windows, Mac, iPad) and may not be supported by any of those platforms.

When APIs in the WordApiOnline requirement set are supported across all platforms, they will added to the next released requirement set (WordApi 1.[NEXT]). Once that new requirement is public, those APIs will be removed from WordApiOnline. Think of this as a similar promotion process to an API moving from preview to release.

Important

WordApiOnline is a superset of the latest numbered requirement set.

Important

WordApiOnline 1.1 is the only version of the online-only APIs. This is because Word on the web will always have a single version available to users that is the latest version.

The following table provides a concise summary of the APIs, while the subsequent API list table gives a detailed list of the current WordApiOnline APIs.

Feature area Description Relevant objects
None.

Because WordApiOnline APIs are only supported by Word on the web, your add-in should check if the requirement set is supported before calling these APIs. This avoids calling an online-only API on a different platform.

if (Office.context.requirements.isSetSupported("WordApiOnline", "1.1")) {
   // Any API exclusive to the WordApiOnline requirement set.
}

Once the API is in a cross-platform requirement set, you should remove or edit the isSetSupported check. This will enable your add-in's feature on other platforms. Be sure to test the feature on those platforms when making this change.

Important

Your manifest cannot specify WordApiOnline 1.1 as an activation requirement. It is not a valid value to use in the Set element.

API list

The following table lists the Word JavaScript APIs currently included in the WordApiOnline requirement set. For a complete list of all Word JavaScript APIs (including WordApiOnline APIs and previously released APIs), see all Word JavaScript APIs.

Class Fields Description

See also