I have the following array of object.
[
{ claimNumber1: 'R12345', checkNumber1: '' },
{ claimNumber2: 'T1234', checkNumber2: 'abcd' },
{ claimNumber3: 'Z4567', checkNumber3: 'qwer' }
]
Using reduce, I want to convert this to below.
{
claimNumber1:'R12345',
checkNumber1:'',
claimNumber2:'T1234',
checkNumber2:'',
claimNumber3:'Z4567',
checkNumber3:'',
}
I tried below but didn't get what I expected.
.reduce((obj, item) =>{
return {...obj,item}
} ,{});
You should spread the item object, because item is an object
const arr = [
{ claimNumber1: "R12345", checkNumber1: "" },
{ claimNumber2: "T1234", checkNumber2: "abcd" },
{ claimNumber3: "Z4567", checkNumber3: "qwer" },
];
const result = arr.reduce((obj, item, i) => {
return { ...obj, ...item, [`checkNumber${i + 1}`]: "" };
}, {});
console.log(result);Almost there. You just need to spread the item as well.
.reduce((obj, item) => {
return {
...obj,
...item,
};
}, {});
I think you should spread every item in reducer. Here is my code.
const res = arr.reduce((prev, item) => {
return { ...prev, ...item };
}, {});
And result is
{
claimNumber1: 'R12345',
checkNumber1: '',
claimNumber2: 'T1234',
checkNumber2: 'abcd',
claimNumber3: 'Z4567',
checkNumber3: 'qwer'
}