I would like to change key names in such object:
const data = {
key1: 'value1',
key2: 'value2',
key3: 'value3',
key4: 'value4',
}
with those keys from map:
const map = {
'key1': 'change1',
'key4': 'change4'
}
Using code below:
const replacedKeysInData = Object.keys(data).map((key) => {
const keyFromMap = map[key] || key;
return { [keyFromMap]: data[key] }
})
console.log(replacedKeysInData);
I get:
[
{ change1: 'value1' },
{ key2: 'value2' },
{ key3: 'value3' },
{ change4: 'value4' }
]
The point is that I would like to have it in one object:
{
change1: 'value1',
key2: 'value2',
key3: 'value3',
change4: 'value4'
}
I suppose it is simple, how can I do it? Thanks
you are using map which returns an array. I created an empty object and added the keys in a forEach
const data = {
key1: 'value1',
key2: 'value2',
key3: 'value3',
key4: 'value4',
}
const map = {
'key1': 'change1',
'key4': 'change4'
}
const replacedKeysInData ={}
Object.keys(data).forEach((key) => {
const keyFromMap = map[key] || key;
replacedKeysInData[keyFromMap] = data[key]
})
console.log(replacedKeysInData);It doesn't have to be anything complicated. Just iterate over the object, swap keys, and delete the original.
const data={key1:"value1",key2:"value2",key3:"value3",key4:"value4"},map={key1:"change1",key4:"change4"};
for (const key in data) {
if (map[key]) {
data[map[key]] = data[key];
delete data[key];
}
}
console.log(data);const data = {
key1: 'value1',
key2: 'value2',
key3: 'value3',
key4: 'value4',
}
const map = {
'key1': 'change1',
'key4': 'change4'
}
const replacedKeysInData = Object.entries(data).map(val => {
if (Object.keys(map).includes(val[0])) {
return [map[val[0]], val[1]]
} else {
return val
}
});
const newData = Object.fromEntries(replacedKeysInData);
console.log(newData)