didYouMean.js 879 B

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  1. 'use strict';
  2. Object.defineProperty(exports, '__esModule', {
  3. value: true,
  4. });
  5. exports.didYouMean = didYouMean;
  6. const MAX_SUGGESTIONS = 5;
  7. /**
  8. * Given [ A, B, C ] return ' Did you mean A, B, or C?'.
  9. */
  10. function didYouMean(firstArg, secondArg) {
  11. const [subMessage, suggestionsArg] = secondArg
  12. ? [firstArg, secondArg]
  13. : [undefined, firstArg];
  14. let message = ' Did you mean ';
  15. if (subMessage) {
  16. message += subMessage + ' ';
  17. }
  18. const suggestions = suggestionsArg.map((x) => `"${x}"`);
  19. switch (suggestions.length) {
  20. case 0:
  21. return '';
  22. case 1:
  23. return message + suggestions[0] + '?';
  24. case 2:
  25. return message + suggestions[0] + ' or ' + suggestions[1] + '?';
  26. }
  27. const selected = suggestions.slice(0, MAX_SUGGESTIONS);
  28. const lastItem = selected.pop();
  29. return message + selected.join(', ') + ', or ' + lastItem + '?';
  30. }