ES6 introduces several features that provide shortcuts for working with arrays and objects, as well as creating variables more elegantly. Some of the prominent features include:

1. Arrow Functions: Arrow functions offer a concise syntax for defining functions. They are particularly useful for one-liners and implicit returns, making code more readable.

2. Spread Operator: The spread operator (...) allows for easy copying of arrays and objects. It simplifies tasks such as combining arrays/objects or creating shallow copies.

3. Rest Parameter Syntax: The rest parameter syntax (...rest) enables functions to accept variable numbers of arguments. It simplifies handling additional arguments beyond a specified number.

4. Destructuring: Destructuring provides a convenient way to extract values from arrays and objects. It allows for assigning values to multiple variables in a single expression.

// Arrow Functions
const addTwoNumbers = (a, b) => a + b;
let sum = addTwoNumbers(3, 5);

// Spread Operator
let arr1 = [1, 2, 3];
let arr2 = [...arr1, 4];

// Rest Parameter Syntax
const sumRest = (a, b, c, ...rest) => {
    let sum = a + b + c;
    for (let i of rest) {
        sum += i;
    }
    return sum;
}

// Destructuring
let [first, second, ...rest] = [1, 2, 3, 4, 5];

To run the provided JavaScript script, follow these steps:

1. Ensure you have Node.js installed on your machine. You can download it from here.
2. Open a terminal or command prompt.
3. Navigate to the directory where the destructuring.js file is located.
4. Run the script using the following command:

node destructuring.js