js calls the browser printing module to trigger a custom function by clicking the button_javascript skills

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If you use the print button that comes with the browser, you cannot perform other printing-related operations, such as passing the number of prints, etc. Therefore, you need to retain the browser printing function and assign it to the button you added. You can trigger a custom function when the button is clicked.

Copy code The code is as follows:

Copy code The code is as follows: