{"action":"opened","issue":{"url":"https://api.github.com/repos/elixir-lang/elixir/issues/3642","labels_url":"https://api.github.com/repos/elixir-lang/elixir/issues/3642/labels{/name}","comments_url":"https://api.github.com/repos/elixir-lang/elixir/issues/3642/comments","events_url":"https://api.github.com/repos/elixir-lang/elixir/issues/3642/events","html_url":"https://github.com/elixir-lang/elixir/issues/3642","id":104017273,"number":3642,"title":"Try to warn on pipeline without parenthesis","user":{"login":"josevalim","id":9582,"avatar_url":"https://avatars.githubusercontent.com/u/9582?v=3","gravatar_id":"","url":"https://api.github.com/users/josevalim","html_url":"https://github.com/josevalim","followers_url":"https://api.github.com/users/josevalim/followers","following_url":"https://api.github.com/users/josevalim/following{/other_user}","gists_url":"https://api.github.com/users/josevalim/gists{/gist_id}","starred_url":"https://api.github.com/users/josevalim/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/josevalim/subscriptions","organizations_url":"https://api.github.com/users/josevalim/orgs","repos_url":"https://api.github.com/users/josevalim/repos","events_url":"https://api.github.com/users/josevalim/events{/privacy}","received_events_url":"https://api.github.com/users/josevalim/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/elixir-lang/elixir/labels/App:Elixir","name":"App:Elixir","color":"CCCCCC"},{"url":"https://api.github.com/repos/elixir-lang/elixir/labels/Kind:Chore","name":"Kind:Chore","color":"fbca04"},{"url":"https://api.github.com/repos/elixir-lang/elixir/labels/Level:Advanced","name":"Level:Advanced","color":"f7c6c7"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-31T09:25:07Z","updated_at":"2015-08-31T09:25:07Z","closed_at":null,"body":"I know we have tried this in the past but we need to give it one more try:\r\n\r\n```elixir\r\n[5, 6, 7, 3] \r\n|> Enum.reverse \r\n|> Enum.map_join \"\", &(Integer.to_string(&1)) \r\n|> String.to_integer\r\n```\r\n\r\nThis won't work as expected.\r\n\r\nSource: http://stackoverflow.com/questions/32303828/strange-behavior-with-string-to-integer-1"}}