{"action":"created","issue":{"url":"https://api.github.com/repos/lodash/lodash/issues/2039","repository_url":"https://api.github.com/repos/lodash/lodash","labels_url":"https://api.github.com/repos/lodash/lodash/issues/2039/labels{/name}","comments_url":"https://api.github.com/repos/lodash/lodash/issues/2039/comments","events_url":"https://api.github.com/repos/lodash/lodash/issues/2039/events","html_url":"https://github.com/lodash/lodash/issues/2039","id":135663646,"number":2039,"title":"_.toString() definition throws in IE11","user":{"login":"pke","id":164625,"avatar_url":"https://avatars.githubusercontent.com/u/164625?v=3","gravatar_id":"","url":"https://api.github.com/users/pke","html_url":"https://github.com/pke","followers_url":"https://api.github.com/users/pke/followers","following_url":"https://api.github.com/users/pke/following{/other_user}","gists_url":"https://api.github.com/users/pke/gists{/gist_id}","starred_url":"https://api.github.com/users/pke/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pke/subscriptions","organizations_url":"https://api.github.com/users/pke/orgs","repos_url":"https://api.github.com/users/pke/repos","events_url":"https://api.github.com/users/pke/events{/privacy}","received_events_url":"https://api.github.com/users/pke/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/lodash/lodash/labels/invalid","name":"invalid","color":"e6e6e6"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":8,"created_at":"2016-02-23T07:52:57Z","updated_at":"2016-02-23T16:15:28Z","closed_at":"2016-02-23T08:15:58Z","body":"In IE11 there is `Symbol` defined with `__proto__` but no `Symbol.prototype`.\r\nSo the following code in `_toString` fails when assigning symbolToString because the check condition is wrong.\r\n\r\n```\r\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\r\n    symbolToString = Symbol ? symbolProto.toString : undefined;\r\n```\r\n\r\nShouldn't it be:\r\n`symbolToString = symbolProto ? symbolProto.toString : undefined;`"},"comment":{"url":"https://api.github.com/repos/lodash/lodash/issues/comments/187768962","html_url":"https://github.com/lodash/lodash/issues/2039#issuecomment-187768962","issue_url":"https://api.github.com/repos/lodash/lodash/issues/2039","id":187768962,"user":{"login":"zloirock","id":2213682,"avatar_url":"https://avatars.githubusercontent.com/u/2213682?v=3","gravatar_id":"","url":"https://api.github.com/users/zloirock","html_url":"https://github.com/zloirock","followers_url":"https://api.github.com/users/zloirock/followers","following_url":"https://api.github.com/users/zloirock/following{/other_user}","gists_url":"https://api.github.com/users/zloirock/gists{/gist_id}","starred_url":"https://api.github.com/users/zloirock/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zloirock/subscriptions","organizations_url":"https://api.github.com/users/zloirock/orgs","repos_url":"https://api.github.com/users/zloirock/repos","events_url":"https://api.github.com/users/zloirock/events{/privacy}","received_events_url":"https://api.github.com/users/zloirock/received_events","type":"User","site_admin":false},"created_at":"2016-02-23T16:15:28Z","updated_at":"2016-02-23T16:15:28Z","body":"`core-js` `Symbol` definitely a function and has `.prototype.toString`, in this issue `Symbol` hasn't `prototype` -> it's not a function."}}