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 Title: jjs
 Language: English
 Date: 03 March 2015
 SectDesc: Basic Tools
 Software: JDK 8
 Arch: generic
 Part Number: E38207-04
 Doc ID: JSSON

 "jjs" "1" "03 March 2015" "JDK 8" "Basic Tools"
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 "NAME"
jjs - Invokes the Nashorn engine.

 "SYNOPSIS"

.\}

jjs [options] [script-files] [-- arguments]




.\}


options


One or more options of the
jjs
command, separated by spaces. For more information, see Options.




script-files


One or more script files which you want to interpret using Nashorn, separated by spaces. If no files are specified, an interactive shell is started.




arguments


All values after the double hyphen marker (--) are passed through to the script or the interactive shell as arguments. These values can be accessed by using the
arguments
property (see Example 3).



 "DESCRIPTION"

The
jjs
command-line tool is used to invoke the Nashorn engine. You can use it to interpret one or several script files, or to run an interactive shell.

 "OPTIONS"

The options of the
jjs
command control the conditions under which scripts are interpreted by Nashorn.


-cp path


-classpath path


Specifies the path to the supporting class files To set multiple paths, the option can be repeated, or you can separate each path with a colon (:).




-Dname=value


Sets a system property to be passed to the script by assigning a value to a property name. The following example shows how to invoke Nashorn in interactive mode and assign
myValue
to the property named
myKey:


.\}

>> jjs -DmyKey=myValue
jjs> java.lang.System.getProperty("myKey")
myValue
jjs>
 




.\}
This option can be repeated to set multiple properties.




-doe


--dump-on-error


Provides a full stack trace when an error occurs. By default, only a brief error message is printed.




-fv


--fullversion


Prints the full Nashorn version string.




-fx


Launches the script as a JavaFX application.




-h


-help


Prints the list of options and their descriptions.




--language=[es5]


Specifies the ECMAScript language version. The default version is ES5.




-ot


--optimistic-types=[true|false]


Enables or disables optimistic type assumptions with deoptimizing recompilation. Running with optimistic types will yield higher final speed, but may increase warmup time.




-scripting


Enables shell scripting features.




-strict


Enables strict mode, which enforces stronger adherence to the standard (ECMAScript Edition 5.1), making it easier to detect common coding errors.




-t=zone


-timezone=zone


Sets the specified time zone for script execution. It overrides the time zone set in the OS and used by the
Date
object.




-v


-version


Prints the Nashorn version string.



 "EXAMPLES"

Example 1 Running a Script with Nashorn




.\}

jjs script.js
 




.\}




Example 2 Running Nashorn in Interactive Mode




.\}

>> jjs
jjs> println("Hello, World!")
Hello, World!
jjs> quit()
>>
 




.\}




Example 3 Passing Arguments to Nashorn




.\}

>> jjs -- a b c
jjs> arguments.join(", ")
a, b, c
jjs>
 




.\}



 "SEE ALSO"

jrunscript


'pl 8.5i
'bp