Function JSObjectGetPropertyForKey 

pub unsafe extern "C-unwind" fn JSObjectGetPropertyForKey(
    ctx: JSContextRef,
    object: JSObjectRef,
    property_key: JSValueRef,
    exception: *mut JSValueRef,
) -> JSValueRef

Available on crate features JSBase and JSObjectRef only.

Gets a property from an object using a JSValueRef as the property key.

Parameter ctx: The execution context to use.

Parameter object: The JSObject whose property you want to get.

Parameter propertyKey: A JSValueRef containing the property key to use when looking up the property.

Parameter exception: A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.

Returns: The property’s value if object has the property key, otherwise the undefined value.

This function is the same as performing “object[propertyKey]” from JavaScript.

Safety

• ctx must be a valid pointer.
• object must be a valid pointer.
• property_key must be a valid pointer.
• exception must be a valid pointer.