Spread operator not works as expected in all cases (3.0.0-beta-2042)

[berkid89]

Hello!

When I using the JS Spread syntax (...) to construct an another object with extra props, its not working as expected:

            engine.Execute("test = (x) => { return {...x, 'newProp':'yeee'}; }");
            var result = engine.Invoke("test", "{'name':'John','age':30}");

The result contains only the newProp:

{ 'newProp':'yeee' }

but the expected is:

{'name':'John', 'age':30, 'newProp':'yeee' }

Tell me if i'm doing something wrong :)

[lahma]

You are invoking function test with string parameter that has value "{'name':'John','age':30}" so you are trying to spread string. This shows the difference and expected output var result = engine.Evaluate("test({'name':'John','age':30})"), here's object parameter instead of string.

[berkid89]

True! Thank you @lahma!

Calling Evaluate() with the correct parameter solved the problem.