Home >Web Front-end >JS Tutorial >Practical script code for check boxes in javascript_javascript skills
This is a very common effect on many websites, that is, clicking the checkbox of the general category will automatically select the checkboxes of all subcategories, or if all the checkboxes of the subcategories are selected, the general category checkbox will be selected. is also automatically selected.
I accidentally saw it on the msn website this time, so I tried to write it down myself.