node-retrieve-globals

node-retrieve-globals

Execute a string of JavaScript using Node.js and return the global variable values and functions.

• Sync and async methods for synchronous or asynchronous JavaScript code respectively.
• Can return any JavaScript data types
• Can provide external variable values as context to the local scope

Installation

Available on npm

npm install node-retrieve-globals

Usage

// const { ModuleScript } = require("node-retrieve-globals");
import { ModuleScript } from "node-retrieve-globals";

And then:

let code = `var a = 1;
const b = "hello";

function hello() {}`;

let vm = new ModuleScript(code);

vm.getGlobalContextSync();
// or await vm.getGlobalContext();

Returns:

{ a: 1, b: "hello", hello: function hello() {} }

Pass in your own Data and reference it in the JavaScript code

let code = `let ref = myData;`;

let vm = new ModuleScript(code);

vm.getGlobalContextSync({ myData: "hello" });
// or await vm.getGlobalContext({ myData: "hello" });

Returns:

{ ref: "hello" }