Provide information on what ES version a JS feature is added in

[Judimax]

Request type

• Please close this issue, I accidentally submitted it without adding any details
• New documentation
• Correction or update

Details

Correction or update

when im learning about items in javascript, closures ternary operators higher order methods for functions and the sort i dont know what ecmascript version they are es5 es6 eslint and so i, i need this in the specs because this is crucial to my API projects thanks much MDN the best

for now since i think of using closures, tell me is clousres in the use of

function Foo(bar){
var _name = bar
function getName(){return _name}
}
is es5 javascript

and fix the global larger problem thanks much MDN the best

[Elchi3]

Duplicate of #2735