I have an array of objects from some api call. Each of these objects have a key named id. I want to change this id to post_id for each object in the array The first key in each object is id, so I have accessed index 0 in the code below.
Thanks in advance.
function changePostId(receivedData) {
receivedData.forEach(obj => {
var keys = Object.keys(obj);
var key = keys[0].replace(/^id/, "post_id");
tmp[key] = obj[keys[0]];
});
}
You can use map() and Spread Operator. Return the object with rest properties and post_id equal to id of the object.
let arr = [
{id:0,other:"elm 1"},
{id:1,other:"elm 2"},
{id:2,other:"elm 3"},
]
let res = arr.map(({id,...rest}) => ({post_id:id,...rest}));
console.log(res);deleteIf you want to modify the original data you can use delete
let arr = [
{id:0,other:"elm 1"},
{id:1,other:"elm 2"},
{id:2,other:"elm 3"},
]
arr.forEach(item => {
item.post_id = item.id;
delete item.id;
})
console.log(arr);You are really making things too complicated. You don't have to work with Object.keys, just access .id:
for(const obj of receivedData) {
obj.post_id = obj.id;
delete obj.id;
}
access the id key from the object and assign it to new key (post_id) and then delete the post_id.
receivedData.forEach(obj => {
obj.post_id = obj.id;
delete obj.id;
})
Updating the keys array won't update the object itself.
What you need to do is:
post_id and assign the obj.id valueobj.id propertyfunction changePostId(receivedData) {
receivedData.forEach(obj => {
obj.post_id = obj.id;
delete obj.id;
});
}
objnottemp.