chakra-2.js

static void CALLBACK PromiseContinuationCallback(JsValueRef task, void *callbackState)
 {
	// save async task in the callback.
	*(void **)callbackState = task;
 }

void runPromiseSample()
 {
	JsValueRef result;
	JsValueRef task = JS_INVALID_REFERENCE;
	JsValueRef callback = JS_INVALID_REFERENCE;
	JsSetPromiseContinuationCallback(PromiseContinuationCallback, &callback);
	JsRunScript(
		L"//The JavaScript ES6 Promise code goes here" \
		L"new Promise(" \
		L" function(resolve, reject) {resolve('basic:success');}" \
		L").then(function () {return new Promise(" \
		L" function(resolve, reject) {resolve('second:success')}" \
		L")});", JS_SOURCE_CONTEXT_NONE, L"", &result);
	// execute async tasks stored in callback
	while (callback! = JS_INVALID_REFERENCE) {
		task = callback;
		callback = JS_INVALID_REFERENCE;
		JsCallFunction(task, nullptr, 0, &result);
	}
 }