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What is the access order of objects in the js scope chain?

Shulou Source: shulou.com Published: 2022-06-03 08:36:17 11月15日 Update

This article mainly shows you "what is the access order of objects in the js scope chain". It is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn the order of object access in the js scope chain.

1. The first object accessed is the current scope object, and the next object comes from the external environment, that is, the parent scope object.

2. The next variable object comes from the next containing environment, the grandfather scope object.

And so on, all the way to the last object in the scope chain, the global scope object.

Example

Var name = "The Window"; var object = {name: "My Object", getNameFunc: function () {return function () {return this.name;};}}; alert (object.getNameFunc () ()) / / result:The Window above is all the content of the article "what is the access order of objects in the js scope chain". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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