constemitter=newEventEmitter(); emitter.on("customEvent",()=>console.log("Got event!")); emitter.emit("customEvent"); Run the code with Node.js, and you'll see "Got event" in the console. Other examples of observer / publish-subscribe in JavaScript JavaScript does not have native support...
Where does datasheet mention their size? I cannot find it. BS_IOPINS0_7_VAL, BS_IOPINS0_1_VAL and BS_IOPINS0_2_VAL are not in the datasheet. These addresses are pointing to data in the PSoC 'ROM' area designed to be read from not written to. These values pre-load the CYREG...
const express = require('express'); const app = express(); // Define routes and middleware here app.listen(3000, () => { console.log('Server started on port 3000'); }); This code sets up a basic Express application with a server listening on port 3000. You can define your routes...
How to understand as const? What does declare global mean? How to add a global variable to the TypeScript environment? Can interface be inherited? What does & mean in typescript? What is the difference between interface and type? What does enum mean as a type? What does the declare modul...
Functions in JavaScript are considered first-class objects, which means that they can be stored in variables, passed around, returned from other functions, and even hold their properties. All functions descend from the built-inFunctionobject and they inherit methods defined on the Function.prototype...
What Does Isolation Test Mean? Isolation Testing is used to assess the performance of an element or section without interference from the overall application structure or external factors. It ensures that the tested unit operates as intended in a standalone manner. For example, consider Cart in an...
This does not mean the value it holds is immutable—just that the variable identifier cannot be reassigned. For instance: const PI = 3.14; console.log(PI) //Prints 3.14 PI = 99; //TypeError: Assignment to constant variable. In the example above, the variable PI has been declared as a ...
What does "object destructuring" mean and what is the result of a destructuring operation?Say you have an object with some properties:const person = { firstName: 'Tom', lastName: 'Cruise', actor: true, age: 57 }You can extract just some of the object properties and put them into ...
Active Directory problem: Check if a user exists in C#? Active Directory User does not assign User logon name and User Principal Name AD LDS cannot ChangePassword, but it can SetPassword Add <?xml version="1.0" encoding="UTF-8" standalone="yes"?> to my xml response Add a Constraint ...
Does Java pass by reference or by value? Difference between a primitive type and a class type? Does Java have pointers? Downcasting in Java Java: Diamond Problem Java: Can an interface extend another interface? Java: Are objects of the same type as the interface implemented? Java: Can an ...