What does type='text/javascript' mean?

"type="text/javascript"" is usually used in conjunction with the script tag to indicate that the text belongs to a javascript script; the type attribute of the script tag is used to set the MIME type of the script and set the type to javascript script Language is used for script execution.

The operating environment of this tutorial: Windows 10 system, JavaScript version 1.8.5, Dell G3 computer.

type="text/javascript"What does it mean