Tern & ECMAScript support
tern supports :
- ECMAScript 5 with ecma5.json.
- ECMAScript 6 with ecma6.json.
After installing and converting your project as Tern Project (see Tern-Eclipse-IDE), open Project Properties, click on Tern / Modules item and select the ECMAScript tern module and the version :
ECMAScript 5 gives the capability to provide completion for Array :
In this sample, arr is an Array of number, the completion for elt item provides Number methods :
ECMAScript 6 provides Promise object. If you select ECMAScript 6 module, Tern provides completion for this object :
Tern is able to discover the type of the Promise value :
