Index - J
| javaMode | Yi.Modes |
| javaScriptMode | Yi.Mode.JavaScript |
| joinLinesB | Yi.Buffer.Region, Yi.Buffer, Yi.Buffer.Adjusted, Yi.Config.Simple, Yi |
| joinLinesE | Yi.Keymap.Emacs.Utils |
| jsonMode | Yi.Modes |
| Jump | |
| 1 (Type/Class) | Yi.JumpList |
| 2 (Data Constructor) | Yi.JumpList |
| jumpBack | Yi.JumpList |
| jumpBackE | Yi.Editor, Yi.Config.Simple, Yi |
| jumpBufferRef | Yi.JumpList |
| jumpForward | Yi.JumpList |
| jumpForwardE | Yi.Editor, Yi.Config.Simple, Yi |
| JumpList | Yi.JumpList |
| jumpList | Yi.Window |
| jumpListA | Yi.Window |
| jumpMark | Yi.JumpList |
| jumpToE | Yi.Eval, Yi |
| jumpToErrorE | Yi.Eval, Yi |
| justOneSep | Yi.Keymap.Emacs.Utils |