Node.js VM Complete Reference Last Updated : 28 Feb, 2023 Improve Improve Like Article Like Save Share Report The VM module enables compiling and running code within V8 Virtual Machine contexts. Example: Javascript // Node.js program to demonstrate the // script.runInContext() method // Including util and vm module const util = require('util'); const vm = require('vm'); // Constructing context const contextobj = { name: 'Nidhi', articles: 60 }; // Constructing script const script = new vm.Script('articles *= 10;'); // Contextifying object vm.createContext(contextobj); // Calling runInContext method script.runInContext(contextobj); // Displays output console.log(contextobj); Output: { name: 'Nidhi', articles: 600 } The Complete list of VM are listed below: Class: vm.Script Class: vm.Script Description new vm.Script() Creates a new vm.Script object script.createCachedData() It can be used with the cachedData option of the script constructor. script.runInContext() Run the compiled code which is present inside the vm.Script object script.runInNewContext() First contextifies the stated contextObject, runs the compiled code inside the vm script.runInThisContext() Runs the compiled code present inside the vm.Script within the context VM Methods VM Methods Description vm.createContext() Create a single context that can be utilized to run more than one scripts. vm.runInThisContext() Runs it inside the context of the current global and then returns the output. vm.isContext() Check if the stated object is being contextified using vm.createContext() method or not. vm.runInContext() It runs the code inside the context of the contextifiedObject and then returns the output. vm.runInNewContext() Compiles the code written and runs Like Article Suggest improvement Previous Node.js vm.runInContext() Method Next Node.js zlib.constants Property Share your thoughts in the comments Add Your Comment Please Login to comment...