What is the purpose of the userAgent property?

What is the purpose of the userAgent property? Correct Answer Identifying the client

The userAgent property is a string that contains the code name and version of the browser. This value is sent to the originating server to identify the client. The userAgent property returns the value of the user-agent header sent by the browser to the server.

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Where is the information of the userAgent property located?
It is not the purpose of philosophy to try to solve our social, economic, and political problems; but it is its purpose to think carefully and systematically about certain fundamental questions which concerns ourselves, our conduct, and the world in which we live- এই বক্তব্যে দার্শনিক লক্ষ্যের ইঙ্গিত রয়েছে;
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