Function isInRange

src/material/datepicker/calendar-body.ts:658–672

Checks whether a value is inside of a range.

(
  value: number,
  start: number | null,
  end: number | null,
  rangeEnabled: boolean,
)

/** Checks whether a value is inside of a range. */
function isInRange(
  value: number,
  start: number | null,
  end: number | null,
  rangeEnabled: boolean,
): boolean {
  return (
    rangeEnabled &&
    start !== null &&
    end !== null &&
    start !== end &&
    value >= start &&
    value <= end
  );
}

/**
 * Extracts the element that actually corresponds to a touch event's location