Java  Script Engine for Racket
1 Example and usage
2 Reference
js-eval
js-global-get
js-global-set!
8.14.0.1

JavaScript Engine for Racket🔗ℹ

JavaCommons Technologies <javacommons@gmail.com>

 (require js-eval) package: js-eval

This basically provides js-eval, js-global-get, and js-global-set!. This depends on JavaScript for PLT Scheme package, and all of the functions in JavaScript for PLT Scheme package can be used with this package.

    1 Example and usage

    2 Reference

1 Example and usage🔗ℹ

#! /usr/bin/env racket
#lang racket
(require js-eval)
(require pprint-all)
 
(js-global-set! "xyz" 888)
(js-eval "print(xyz+$1)" 11)
(js-eval "xyz=(123+$1)*$2" 11 20)
(js-eval "echo(xyz, 'xyz')")
(js-global-get "xyz")
(js-eval "$result = $1 + $2" 11 22)
(dump (js-global-get "$result"))
(js-global-set! "list-ref" list-ref)
(js-eval "global['list-ref']($1, $2)" '(111 222 333) 1)
(js-global-set! "list_ref" list-ref)
(js-eval "list_ref($1, $2)" '(111 222 333) 1)

2 Reference🔗ℹ

syntax

(js-eval script params ...)

Evaluates a JavaScript script with optional parameters ($1~$n).

syntax

(js-global-get name)

Attempts to lookup property name in global-object.

syntax

(js-global-set! name x)

Sets property name in global-object.