How to add a property in JavaScript object? -

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• javascript: expando property? 3 answers

i have javascript object:

var credentials =  {      uid: response.authresponse.userid,      accesstoken: response.authresponse.accesstoken  }; 

how can add in object name: response.something?

javascript objects dynamic. means can add property object @ time doing this:

credentials.name = response.something; 

or equivalently:

credentials['name'] = response.something; 

ecmascript 5 only:

object.defineproperty( credentials, "name", {     value: response.something,     writable: true,     enumerable: true,     configurable: true });