覆盖Map.get方法

Question

I wanted to see if I could override the get method on the Map object, this was unexpected. Can anyone tell me why?

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> Map.prototype.get = function() { console.log("test") }
test
test
test
test
test
test
...and on forever...

Answer 1

console.log可能会调用Map因此会创建一个无限循环。