CODEWITHSUNDEEP
javascript
Altair21
Altair21

Reputation: 645

Access a different object's properties inside another object

I have a dummy api response consisting of a results array which has objects in it. When I try to map over this array and try to access each individual's object's properties inside another object I'm creating, it throws an error. Any idea what could be wrong?

here's a code snippet

import { result } from "./partnership_rewards_response.json";

result.map((partner,index)=>{
    const obj = {
        partner.name,
        partner.class
    }
})

and this is how my json file looks like

{
"result":[obj1, obj2, ...]
}

and the error I'm getting is Parsing error: Unexpected token, expected ","

EDIT: I forgot to specify, I'm trying to populate content in react using useState. so object structure is already initialized in the default value

EDIT2: here's How I'm trying to populate it

const [showModal, setModal] = useState(false);
const [modalContent, setModalContent] = useState({
    partner_name: "",
    coupon_image:"",
    coupon_code : "",
    coupon_content:"",
    terms:"",
    redemption_steps:"",
});

setModalContent(
{
partner.partner_logo,
partner.coupon_image
}
)

Upvotes: 0

Views: 745

Answers (3)

T.J. Crowder
T.J. Crowder

Reputation: 1075785

The problem is that you're trying to use shorthand property notation in your object literal, but you can only do that when the source of the property value is a simple identifier like example, not a property expression like person.name. When the source of the value isn't just a simple identifier, you have to use the "old" (pre-ES2015) full property syntax (name: value) instead.

You need to give the property name explicitly:

result.map((partner,index)=>{
    const obj = {
        name: partner.name,
        class: partner.class,
    };
    // ...I assume there's more here...
})

or re your edit (confusing that you've changed property names):

setModalContent({
    partner_logo: partner.partner_logo,
    image: partner.image,
});

You could also do it with destructuring and property shorthand notation:

result.map(({name, class},index)=>{
    const obj = {
        name,
        class,
    };
    // ...I assume there's more here...
})

or re your edit, if you've destructured person, you could do:

setModalContent({
    partner_logo,
    image,
});

Upvotes: 2

Alireza Ebrahimkhani
Alireza Ebrahimkhani

Reputation: 551

your shorthand syntax is wrong change your code to this

result.map((partner,index) => {
 const obj = {
     name : partner.name,
     class : partner.class
  }
})

This should work

Upvotes: 1

tromgy
tromgy

Reputation: 5853

Shorthand objects syntax doesn't work because you have dots in the key names.

You can change it to something like:

import { result } from "./partnership_rewards_response.json";

result.map((partner,index)=>{
    const obj = {
        partnerName: partner.name,
        partnerClass: partner.class
    }
})

Upvotes: 1

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