is function

WinJS.Promise.is function

Applies to Windows and Windows Phone

Determines whether a value fulfills the promise contract.

Syntax


var isPromise = WinJS.Promise.is(aPromise);

Parameters

value

Type: Object

A value that may be a promise.

Return value

Type: Boolean

true if the object conforms to the promise contract (has a then function), otherwise false.

Requirements

Minimum WinJS version

WinJS 1.0

Namespace

WinJS.Promise

See also

Promise

 

 

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