{"action":"closed","issue":{"url":"https://api.github.com/repos/Tairraos/rpn.js/issues/1","repository_url":"https://api.github.com/repos/Tairraos/rpn.js","labels_url":"https://api.github.com/repos/Tairraos/rpn.js/issues/1/labels{/name}","comments_url":"https://api.github.com/repos/Tairraos/rpn.js/issues/1/comments","events_url":"https://api.github.com/repos/Tairraos/rpn.js/issues/1/events","html_url":"https://github.com/Tairraos/rpn.js/issues/1","id":286966571,"number":1,"title":"减法为啥不能算？subtraction can not be calculated...","user":{"login":"jarain","id":6956930,"avatar_url":"https://avatars3.githubusercontent.com/u/6956930?v=4","gravatar_id":"","url":"https://api.github.com/users/jarain","html_url":"https://github.com/jarain","followers_url":"https://api.github.com/users/jarain/followers","following_url":"https://api.github.com/users/jarain/following{/other_user}","gists_url":"https://api.github.com/users/jarain/gists{/gist_id}","starred_url":"https://api.github.com/users/jarain/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jarain/subscriptions","organizations_url":"https://api.github.com/users/jarain/orgs","repos_url":"https://api.github.com/users/jarain/repos","events_url":"https://api.github.com/users/jarain/events{/privacy}","received_events_url":"https://api.github.com/users/jarain/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2018-01-09T04:25:04Z","updated_at":"2018-05-28T13:18:15Z","closed_at":"2018-05-28T13:18:15Z","author_association":"NONE","body":"console.log(rpn.calculate('5-2'));\r\n\r\nUncaught TypeError: calcStack.pop(...).toFixed is not a function\r\n    at Object.rpnCalculate (rpn.js:149:37)\r\n    at Object.calculate (rpn.js:158:24)\r\n    ...."}}
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