Expression migrated from C# version(https://github.com/Microsoft/botbuilder-dotnet/tree/ComposableDialog/libraries/Microsoft.CommonExpressions)
npm i
Then
var parsed = ExpressionEngine.Parse(input);
var actual = ExpressionEngine.Evaluate(parsed, scope);
to get result
npm install @types/mocha -g
npm install ts-node -g
npm run test