JavaScript Tutorials - Herong's Tutorial Examples - 2.33, by Herong Yang
Evaluating JavaScript Code with 'jrunscript' Interactively
This section provides a tutorial example on how to evaluate JavaScript codes with 'jrunscript' in interactive mode. Each line is evaluated as an expression. The value is printed on the screen.
Another way to run JavaScrip code with "jrunscript" is to use "jrunscript" in interactive mode. Several notes about using "jrunscript" interactive mode:
I did a number of tests with "jrunscript" interactive mode and recorded some of them below:
C:\herong>\progra~1\java\jdk-10.0.1\bin\jrunscript nashorn> println("Hello World!"); Hello World! nashorn> x = "Apple"; y = "Orange"; Orange nashorn> println(x + ' and ' + y); Apple and Orange nashorn> var s = 0; nashorn> for ( i=1; i<=100; i++) { script error: sun.org.mozilla.javascript.internal.EvaluatorException: missing } in compound statement (<STDIN>#1) in <STDIN> at line number 1 nashorn> for ( i=1; i<=100; i++) { s += i; } 5050.0 nashorn> println(s); 5050 js> exit();
Table of Contents
ECMAScript Language Specification and JavaScript Dialects
Data Types, Variables and Expressions
Creating, Accessing, and Manipulating Arrays
Defining and Calling Functions
Web Browser Supporting JavaScript
Server-Side and Client-Side Web Scripting
Defining Your Own Object Types
Inheritance of Properties and Methods through the Prototype Object Chain
►'jrunscript' - JavaScript Shell Command from JDK
Downloading and Installing JDK 10
"jrunscript" - Scripting Shell Command and Options
Running JavaScript Code with 'jrunscript'
►Evaluating JavaScript Code with 'jrunscript' Interactively
Running a JavaScript Code File with 'jrunscript'
Using Functions as "Function" Objects
Introduction to Built-in Object Types
W3C's Document Object Model (DOM) Specifications