using spread operator in json obejct

Hey everyone

3 Replies

vsc is throwing an error if I use the spread operator within a json object can't seem to find out the reason why we can't use spread operators in a json object, what's the reasoning behind why it doesn't work

const names = ['nameOne', 'nameTwo'];

const people = {
  names: ...names}

const names = ['nameOne', 'nameTwo'];

const people = {
  names: ...names}

when

const people = {
names: ['nameOne', "nameTwo"]}

const people = {
names: ['nameOne', "nameTwo"]}

would be fine, so I am wondering why is it that spread operators can't be used within JSON objects

vince•2y ago

They can I know it's a common pattern in React, I'm not an expert but try

const people = {
  ...names,
  newKey: newValue, 
}

const people = {
  ...names,
  newKey: newValue, 
}

NazCodelandOP•2y ago

the output of that is { '0': 'nameOne', '1': 'nameTwo' } which isn't the same as

{names: ['nameOne', "nameTwo"]}

{names: ['nameOne', "nameTwo"]}

didn't know we could do that though, that's good to know

const people = {
  names: [...names],
};

const people = {
  names: [...names],
};

that works got that idea from your help, awesome! thank you @vince

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using spread operator in json obejct