type

Console

src @Js abstract const class Console : Obj

Console provides utilities to interact with the terminal console. For Java this API is designed to use jline if installed. In browser JavaScript environments this APIs uses the JS debugging window.

methods

clear	Clear the console of all text if supported
cur	Get the default console for the virtual machine
debug	Print a message to the console at the debug level
err	Print a message to the console at the error level
group	Enter an indented group level in the console.
groupEnd	Exit an indented, collapsable group level
height	Number of lines that fit vertically in console or null if unknown
info	Print a message to the console at the informational level
prompt	Prompt the user to enter a string from standard input.
promptPassword	Prompt the user to enter a password string from standard input with echo disabled.
table	Print tabular data to the console
warn	Print a message to the console at the warning level
width	Number of chars that fit horizontally in console or null if unknown
wrap	Construct a console that wraps an output stream.

Slot Details

clear

src abstract This clear()

Clear the console of all text if supported

cur

src static Console cur()

Get the default console for the virtual machine

debug

src abstract This debug(Obj? msg, Err? err := null)

Print a message to the console at the debug level

err

src abstract This err(Obj? msg, Err? err := null)

Print a message to the console at the error level

group

src abstract This group(Obj? msg, Bool collapsed := false)

Enter an indented group level in the console. The JS debug window can specify the group to default in a collapsed state (this flag is ignored in a standard terminal).

groupEnd

src abstract This groupEnd()

Exit an indented, collapsable group level

height

src abstract Int? height()

Number of lines that fit vertically in console or null if unknown

info

src abstract This info(Obj? msg, Err? err := null)

Print a message to the console at the informational level

prompt

src abstract Str? prompt(Str msg := "")

Prompt the user to enter a string from standard input. Return null if end of stream has been reached.

promptPassword

src abstract Str? promptPassword(Str msg := "")

Prompt the user to enter a password string from standard input with echo disabled. Return null if end of stream has been reached.

table

src abstract This table(Obj? obj)

Print tabular data to the console:

List of list is two dimensional data where first row is header names
List of items with an each method will create column per key
List of items without each will map to a column of "val"
Anything else will be table of one cell table

warn

src abstract This warn(Obj? msg, Err? err := null)

Print a message to the console at the warning level

width

src abstract Int? width()

Number of chars that fit horizontally in console or null if unknown

wrap

src static Console wrap(OutStream out)

Construct a console that wraps an output stream. The returned console instance is not thread safe.