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d33pfri3d/addArray.js

Created December 9, 2022 08:36
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addArray.js
let array = [];
// This function adds an object to the array, but the object has a reference
// to the array itself, creating a circular reference.
function addToArray() {
let obj = {};
obj.array = array;
array.push(obj);
}
// If this function is called repeatedly, it will create more and more objects
// that are added to the array, but they will never be garbage collected because
// they have a reference to the array, and the array has a reference to them.
// This will cause the heap to fill up with unused objects and eventually cause
// a memory leak.
addToArray();
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