#lang s-exp "../lang/js/js.rkt" (declare-implementation #:racket "racket-impl.rkt" #:javascript ("js-impl.js") #:provided-values (alert body call-method $ window get-attr set-attr! js-string? string->js-string js-string->string js-number? number->js-number js-number->number viewport-width viewport-height in-javascript-context? js-null? js-null ))