const foo = {}; foo["bar"] = true; foo["foo-bar"] = true; foo.bar["bar"]["lorem_ispsum"].foo["lorem-ipsum"] = true; a[ b ] c?.[ d ] x["very"]["long"]["chain"]["of"]["computed"]["members"]["that"]["goes"]["on"]["for"]["ever"]["I"]["mean"]["it"]["for"]["ever"]["and"]["even"]["longer"]["than"]["that"] x.very.long.chain.of.static.members.that.goes.on.for.ever.I.mean.it.for.ever["and"].even.longer.than.that.and["rofefefeeffeme"].doesnt.supportit x.very.long.chain.of.static.members.that.goes.on.for.ever.I.mean.it.for.ever[and()].even.longer.than.that.and["rofefefeefefme"].doesnt.supportit x[b["test"]] a[("test")]