Function promptSelect

cli/unstable_prompt_select.ts:108–161

(
  message: string,
  values: PromptEntry<V>[],
  options: PromptSelectOptions = {},
)

 * ```
 */
export function promptSelect<V = undefined>(
  message: string,
  values: PromptEntry<V>[],
  options: PromptSelectOptions = {},
): PromptEntry<V> | null {
  if (!Deno.stdin.isTerminal()) return null;

  let selectedIndex = 0;

  handlePromptSelect(
    message,
    options.indicator ?? "❯",
    values,
    options.clear,
    options.visibleLines,
    options.fitToRemainingHeight,
    (active, absoluteIndex) => {
      if (active) {
        selectedIndex = absoluteIndex;
      }
    },
    (str, _absoluteIndex, {
      etx,
      up,
      down,
      remove,
      inputStr,
    }) => {
      switch (str) {
        case ETX:
          return etx();
        case ARROW_UP:
          up();
          break;
        case ARROW_DOWN:
          down();
          break;
        case CR:
        case " ":
          return true;
        case DELETE:
          remove();
          break;
        default:
          inputStr();
          break;
      }

      return false;
    },
  );

  return values[selectedIndex] ?? null;
}