What is the function of the "End" key on the keyboard?

The function of the "End" key on the keyboard is to move the cursor to the end of a line or document. When you press the "End" key, it instantly shifts the cursor position to the very last character in the current line or to the bottom of the document if you are in a word processing program. This is particularly useful when you want to quickly navigate through text without having to use the arrow keys or mouse, allowing for more efficient editing or reading.

In various text environments, utilizing the "End" key can significantly speed up your workflow, especially during tasks that involve mundane navigation like reaching the end of lines or paragraphs. The support for this function across different programs makes it a standard expected behavior on most keyboards.