Share via:if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'codingbeautydev_com-box-4','ezslot_3',166,'0','0'])};__ez_fad_position('div-gpt-ad-codingbeautydev_com-box-4-0'); Your email address will not be published. const user = undefined; // TypeError: Cannot read properties of undefined (reading 'constructor') const User = user.constructor; const newUser = WebRsidence officielle des rois de France, le chteau de Versailles et ses jardins comptent parmi les plus illustres monuments du patrimoine mondial et constituent la plus complte ralisation de lart franais du XVIIe sicle. windows10 (This essentially makes the statement this.a = 37; dead code. Any object (with the exception of null prototype objects) will have a constructor property on its [[Prototype]]. If the source is loaded as a module (for HTML, this means adding type="module" to the