Javascript return Top Effect (self-writing code) _ javascript skills

Today, I took the time to use native javascript to write a response to the top. Due to my limited level, if you have any questions, please note that I would like to accept them later, if you have any need, you can refer to the results that many websites have used to return to the top. If you are too lazy, you can also link a directly to # To achieve the effect. Today, I took the time to write it using native javascript. Due to my limited level, please note if you have any questions.
Html code:

The Code is as follows:

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Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

Notepad is a basic text editor used to create simple documents. Notepad is most commonly used to view or edit text (.txt) files. However, many users find that notepad is a simple tool for creating web pages.

Because notepad only supports basic formats, you cannot occasionally save special formats in documents that require plain text. Because special characters or other formats cannot be displayed on the published webpage, otherwise errors may occur, it is particularly useful when creating HTML documents for the webpage.

You can save notepad files in Unicode, ANSI, UTF-8, or Unicode format before high. These formats provide you with more flexibility when using documents of different character sets.

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