javascript ...

// || means orJavaScript, often abbreviated as JS, is a programming language that conforms
to the ECMAScript specification.
JavaScript is high-level, often just-in-time compiled, and multi-paradigm.
It has curly-bracket syntax, dynamic typing, prototype-based object-orientation,
and first-class functions.javascript javascript javascript!JavaScript is a text-based programming language used both on the client-side
and server-side that allows you to make web pages interactive.
Where HTML and CSS are languages that give structure and style to web pages,
JavaScript gives web pages interactive elements that engage a user.console.log("JavaScript is the most powerful and most efficient language in the world")
//Here's Why
You can manage the Server with this using Node.JS and Express.Js

These are the most famous libs for JS 

For Building Mobile App
. React Native and Redux

For Building Windows App

. Electron

For Machine learning
. TensorFlow JS



function sum(x, y, z) {
  return x + y + z;
}

const numbers = [1, 2, 3];

console.log(sum(...numbers));
// expected output: 6

console.log(sum.apply(null, numbers));
// expected output: 6

/* Spread syntax (...) allows an iterable such as an array expression or string 
to be expanded in places where zero or more arguments (for function calls) 
or elements (for array literals) are expected, or an object expression to be 
expanded in places where zero or more key-value pairs (for object literals) 
are expected. */

// ... can also be used in place of `arguments`
// For example, this function will add up all the arguments you give to it
function sum(...numbers) {
  let sum = 0;
  for (const number of numbers)
    sum += number;
  return sum;
}

console.log(sum(1, 2, 3, 4, 5));
// Expected output: 15

// They can also be used together, but the ... must be at the end
console.log(sum(4, 5, ...numbers));
// Expected output: 15