Working with Checkboxes, Radio Buttons, and Dropdowns
What's the recommended way to handle select option groups programmatically?
Using optgroup elements with their label property is the correct way to handle option groups. Best practices: 1) Create optgroup elements for each group, setting their label property, 2) Append options to their respective optgroups, 3) Append optgroups to the select element, 4) Maintain the hierarchical structure for accessibility, 5) Use document.createElement('optgroup') for proper element creation. This ensures proper semantic structure and accessibility while providing visual grouping of related options.