mirror of
https://github.com/denoland/deno.git
synced 2024-11-27 16:10:57 -05:00
52 lines
5 KiB
Markdown
52 lines
5 KiB
Markdown
# Read-eval-print-loop
|
||
|
||
`deno repl` starts an read-eval-print-loop, which lets you interactively build
|
||
up program state in the global context.
|
||
|
||
## Keyboard shortcuts
|
||
|
||
| Keystroke | Action |
|
||
| --------------------- | ------------------------------------------------------------------------------------------------ |
|
||
| Ctrl-A, Home | Move cursor to the beginning of line |
|
||
| Ctrl-B, Left | Move cursor one character left |
|
||
| Ctrl-C | Interrupt and cancel the current edit |
|
||
| Ctrl-D | If if line _is_ empty, signal end of line |
|
||
| Ctrl-D, Del | If line is _not_ empty, delete character under cursor |
|
||
| Ctrl-E, End | Move cursor to end of line |
|
||
| Ctrl-F, Right | Move cursor one character right |
|
||
| Ctrl-H, Backspace | Delete character before cursor |
|
||
| Ctrl-I, Tab | Next completion |
|
||
| Ctrl-J, Ctrl-M, Enter | Finish the line entry |
|
||
| Ctrl-K | Delete from cursor to end of line |
|
||
| Ctrl-L | Clear screen |
|
||
| Ctrl-N, Down | Next match from history |
|
||
| Ctrl-P, Up | Previous match from history |
|
||
| Ctrl-R | Reverse Search history (Ctrl-S forward, Ctrl-G cancel) |
|
||
| Ctrl-T | Transpose previous character with current character |
|
||
| Ctrl-U | Delete from start of line to cursor |
|
||
| Ctrl-V | Insert any special character without performing its associated action (#65) |
|
||
| Ctrl-W | Delete word leading up to cursor (using white space as a word boundary) |
|
||
| Ctrl-X Ctrl-U | Undo |
|
||
| Ctrl-Y | Paste from Yank buffer |
|
||
| Ctrl-Y | Paste from Yank buffer (Meta-Y to paste next yank instead) |
|
||
| Ctrl-Z | Suspend (Unix only) |
|
||
| Ctrl-_ | Undo |
|
||
| Meta-0, 1, ..., - | Specify the digit to the argument. `–` starts a negative argument. |
|
||
| Meta-< | Move to first entry in history |
|
||
| Meta-> | Move to last entry in history |
|
||
| Meta-B, Alt-Left | Move cursor to previous word |
|
||
| Meta-Backspace | Kill from the start of the current word, or, if between words, to the start of the previous word |
|
||
| Meta-C | Capitalize the current word |
|
||
| Meta-D | Delete forwards one word |
|
||
| Meta-F, Alt-Right | Move cursor to next word |
|
||
| Meta-L | Lower-case the next word |
|
||
| Meta-T | Transpose words |
|
||
| Meta-U | Upper-case the next word |
|
||
| Meta-Y | See Ctrl-Y |
|
||
|
||
## Special variables
|
||
|
||
| Identifier | Description |
|
||
| ---------- | ------------------------------------ |
|
||
| _ | Yields the last evaluated expression |
|
||
| _error | Yields the last thrown error |
|