I had ECMAScript on my resume (as JavaScript/ECMAScript) and a technical recruiter asked me what that was. "Oh, I've never heard of ECMAScript before". Well,

I had ECMAScript on my resume (as JavaScript/ECMAScript) and a technical recruiter asked me what that was. "Oh, I've never heard of ECMAScript before". Well, it's a thing. You'll have to trust me on that one.