jsbind | А C : left_right_arrow : JS binding library supporting | Binary Executable Format library
kandi X-RAY | jsbind Summary
kandi X-RAY | jsbind Summary
jsbind is a C++ :left_right_arrow: JavaScript binding library which supports multitple JavaScript engines and backends. This repository is still a work in progress. Even though we use the library in production, it's nowhere near open-source friendly (yet). We'll be working to change that in the following weeks. So, until this note is gone, please accept that the version you see here has no documentation and no support.
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QUESTION
public class Thing {
public Thing() {
}
public void run() {
}
public void out(String s) {
System.out.println(s);
}
}
Context context = Context.create("js");
Value jsBindings = context.getBindings("js");
jsBindings.putMember("this", new Thing());
context.eval("js", "this.run = () => this.out('hi');");
jsBindings.getMember("this").getMember("run").execute();
context.close();
...ANSWER
Answered 2019-Jan-28 at 12:17There are two problems here:
putMember("this", new Thing())
will not modify the globalthis
, but put a property namedthis
in the global object, accessible viathis.this
. And the answer to "how do I set the global this" is, I'm afraid: you can't.Assigning to host (i.e. Java) object methods is not possible. You can however implement a Java interface using a JS object, using
Value.as(Class)
, e.g. you can do the following:
QUESTION
I'm trying to make a simple Nim app which runs on Emscripten. I'm also using jsbind
to call a JavaScript function, namely console.log
.
I have the following file, test.nim
:
ANSWER
Answered 2017-May-08 at 07:19Emscripten 1.35.0 is probably too old to have UTF8ToString
function. Your sample works fine for me with Emscripten 1.37.1.
As a side note, I've noticed you're using fixed Emscripten heap size. In case you want dynamically growing heap you can use -s ALLOW_MEMORY_GROWTH=1
flag.
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