Object property name ... strangeness

[mstoykov]

If you have the code

var s = {1e3: 10} 
s[1000] // undefined
s[1e3] // undefined
s["1e3"] // 10 

But this works perfectly fine if it's s[1e3] = 10

This seems to work in firefox and as this grafana/k6#1126 issues shows is used by minifiers, but I don't know if this isn't ES6+ 🤷‍♂️