HasProperty.js 517 B

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  1. 'use strict';
  2. var GetIntrinsic = require('get-intrinsic');
  3. var $TypeError = GetIntrinsic('%TypeError%');
  4. var IsPropertyKey = require('./IsPropertyKey');
  5. var Type = require('./Type');
  6. // https://ecma-international.org/ecma-262/6.0/#sec-hasproperty
  7. module.exports = function HasProperty(O, P) {
  8. if (Type(O) !== 'Object') {
  9. throw new $TypeError('Assertion failed: `O` must be an Object');
  10. }
  11. if (!IsPropertyKey(P)) {
  12. throw new $TypeError('Assertion failed: `P` must be a Property Key');
  13. }
  14. return P in O;
  15. };