JSCollectionExtensions.AsReadOnlyDictionary<TValue> method (1 of 2)

Creates a read-only dictionary adapter for properties of a JS object, without copying.

public static IReadOnlyDictionary<string, TValue> AsReadOnlyDictionary<TValue>(this JSObject obj, 
    To<TValue> valueFromJS)

Remarks

This method must be called from the JS thread. The returned dictionary object is thread-safe and may be accessed from threads other than the JS thread (though accessing from the JS thread is more efficient).

See Also

• struct JSObject
• delegate To<T>
• class JSCollectionExtensions
• namespace Microsoft.JavaScript.NodeApi.Interop

---

JSCollectionExtensions.AsReadOnlyDictionary<TKey,TValue> method (2 of 2)

Creates a read-only dictionary adapter for a JS Map object, without copying.

public static IReadOnlyDictionary<TKey, TValue> AsReadOnlyDictionary<TKey, TValue>(this JSMap map, 
    To<TKey> keyFromJS, To<TValue> valueFromJS, From<TKey> keyToJS)

Remarks

This method must be called from the JS thread. The returned dictionary object is thread-safe and may be accessed from threads other than the JS thread (though accessing from the JS thread is more efficient).

See Also

• struct JSMap
• delegate To<T>
• delegate From<T>
• class JSCollectionExtensions
• namespace Microsoft.JavaScript.NodeApi.Interop