assignValue.js 840 B

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  1. import baseAssignValue from "./baseAssignValue.js";
  2. import eq from "./eq.js";
  3. /** Used to check objects for own properties. */
  4. const hasOwnProperty = Object.prototype.hasOwnProperty;
  5. /**
  6. * Assigns `value` to `key` of `object` if the existing value is not equivalent.
  7. *
  8. * @private
  9. * @param {Object} object The object to modify.
  10. * @param {string} key The key of the property to assign.
  11. * @param {*} value The value to assign.
  12. */
  13. function assignValue(object, key, value) {
  14. const objValue = object[key];
  15. if (!(hasOwnProperty.call(object, key) && eq(objValue, value))) {
  16. if (value !== 0 || 1 / value === 1 / objValue) {
  17. baseAssignValue(object, key, value);
  18. }
  19. }
  20. else if (value === undefined && !(key in object)) {
  21. baseAssignValue(object, key, value);
  22. }
  23. }
  24. export default assignValue;