How do you add two separate object literal properties together?

Question

I'm trying to combine the number properties of two separate object literals. But I don't know how to go about it

const booklist = [
    {
        bookName: "The Game",
        bookPrice: 10
    },
    {
        bookName: "48 Laws",
        bookPrice: 20
    }
];


for(let i = 0; i < booklist.length; i++) {
    let price = booklist[i].bookPrice;  
   console.log(price) // outputs 10, 20
}

I want to add the 10 and 20 together and output the result. How do I go about that?

Answer 1 · 2017-07-01T19:40:37Z

July 1, 2017 7:40pm

instead of logging the price, you can add each one to a sum variable initialized at 0 outside the for loop. inside the loop you would have sum += price.

Answer 2 · 2017-07-01T19:52:40Z

July 1, 2017 7:52pm

there is also a method called reduce that can be used to add the numbers in an array.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce

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Kristian Woods

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How do you add two separate object literal properties together?

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james south

james south

Kristian Woods

Kristian Woods

james south

james south