I am experiencing with JavaScript weakmaps, after trying this code in google chrome developer console, running with --js-flags="--expose-gc", I don t understand why the weakmap keep having a reference to a.b if a is gc ed.
var a = {listener: function(){ console.log( A ) }}
a.b = {listener: function(){ console.log( B ) }}
var map = new WeakMap()
map.set(a.b, [])
map.set(a, [a.b.listener])
console.log(map) // has both a and a.b
gc()
console.log(map) // still have both a and a.b
a = undefined
gc()
console.log(map) // only have a.b: why does still have a reference to a.b? Should nt be erased?
