Working with Checkboxes, Radio Buttons, and Dropdowns

What common form validation requirement does this function address?

function validateRequired(checkboxes, minRequired) {
  const checked = Array.from(checkboxes).filter(cb => cb.checked);
  return checked.length >= minRequired;
}

Ensuring all checkboxes are checked
Validating checkbox values
Enforcing a minimum number of selections
This function implements a minimum selection requirement validation for checkbox groups. This is a common requirement in forms where users must select at least a certain number of options (e.g., 'Select at least 2 interests'). Key features: 1) Flexible - works with any minimum requirement, 2) Efficient - uses Array.from and filter for clean processing, 3) Returns boolean for easy integration with form validation, 4) Can be easily modified to also enforce maximum selections. This pattern is essential for creating user-friendly forms with clear validation rules.
Checking for duplicate selections

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