fromPairs.js 596 B

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  1. /**
  2. * The inverse of `_.toPairs`; this method returns an object composed
  3. * from key-value `pairs`.
  4. *
  5. * @static
  6. * @memberOf _
  7. * @since 4.0.0
  8. * @category Array
  9. * @param {Array} pairs The key-value pairs.
  10. * @returns {Object} Returns the new object.
  11. * @example
  12. *
  13. * _.fromPairs([['a', 1], ['b', 2]]);
  14. * // => { 'a': 1, 'b': 2 }
  15. */
  16. function fromPairs(pairs) {
  17. var index = -1,
  18. length = pairs == null ? 0 : pairs.length,
  19. result = {};
  20. while (++index < length) {
  21. var pair = pairs[index];
  22. result[pair[0]] = pair[1];
  23. }
  24. return result;
  25. }
  26. module.exports = fromPairs;