Working with Checkboxes, Radio Buttons, and Dropdowns

What is the purpose of this code pattern when working with multiple checkboxes?

const checkboxes = document.querySelectorAll('input[name="options"]');
const values = Array.from(checkboxes)
  .filter(cb => cb.checked)
  .map(cb => cb.value);

To validate checkbox names
To get values of all checkboxes
To get values of only checked checkboxes
This pattern efficiently collects values from checked checkboxes in a group. The process involves: 1) Selecting all checkboxes with the same name, 2) Converting NodeList to Array for method chaining, 3) Filtering to keep only checked boxes, 4) Mapping to extract their values. This is commonly used in forms where users can select multiple options. The pattern is memory-efficient as it processes elements in a single pass and creates minimal intermediate arrays.
To count total checkboxes

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