AfterEffects 2019 will not run ECMAScript 2018 scripts

[chadm91467648]

Despite this being advertised as a feature.

I can't even run a one line script with

let test = 10;

Throws an error saying ';' expected.  However, if I change 'let' to 'var' then it works.

Has anyone been able to run scripts using the new syntax?

[Dan Ebberts · Accepted solution]

Are you talking about scripting or expressions? The expressions engine is what was updated (based on ECMAScript 2018), but the scripting engine wasn't (as far as I know). This opacity expression works for me:

let test = 10;

test

but this script does not, returning the error message you mentioned:

let test = 10;

alert (test);

Dan

[chadm91467648]

Yes, I am referring to scripting.  Wow that is incredibly disappointing.  I would have never thought they would have 2 different javascript engines in the same product.