Javascript memory leaks when object property references the object itself (self reference) -


let's have code this

var obj = {}; obj.a = obj;

i know modern browsers implement mark-and-sweep algorithm should not have memory leaks in case. i'm not sure whether old browsers implement reference-counting consider circular reference.

in opinion, there should memory leak because reference count 1 (referenced "a" property of same object). correct reference count 1 or browser not increase reference count if object referenced itself?

older browsers (i'm assuming you're talking things ie6) don't have problem reference list it's entirely contained within javascript , handle fine.

where older browsers have circular reference problems when have circular references between javascript objects , dom objects. if don't store dom objects in persistent javascript variables or don't store references javascript objects in dom properties, won't run issue. no longer issue in modern browsers either.


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