I have an array of objects as

const items = [
  {name: 'Sam', amount: '455gbjsdbf394545', role: 'admin'},
  {name: 'Jane', amount: 'iwhru84252nkjnsf', role: 'user'},
  {name: 'Alf', amount: '34hjbjbsdf94334', role: 'user'},

The amount in the array are encrypted. And i have a function decryptAmount() that receives amount and returns the decrypted value decryptAmount(amount)

In the end, I want a new array as

const items = [
  {name: 'Sam', amount: 101, role: 'admin'},
  {name: 'Jane', amount: 50, role: 'user'},
  {name: 'Alf', amount: 100, role: 'user'},
]

How do get my intended solution?

CodePudding user response：

Your best bet is to use the array map method. This method iterates over each array element and replaces it with the returned value.

let items = [...];
items = items.map(item => ({
   ...item,
   amount: decryptAmount(item.amount)
}));

Array Map on MDN:

The map() method creates a new array populated with the results of calling a provided function on every element in the calling array.

CodePudding user response：

You can run forEach loop

items.forEach(item => {
  item.amount = decryptAmount(item.amount);
});

This will modify every amount in the array

CodePudding user response：

You can try to iterate through your array and modify your objects So, you will have :

const items = [
  {name: 'Sam', amount: '455gbjsdbf394545', role: 'admin'},
  {name: 'Jane', amount: 'iwhru84252nkjnsf', role: 'user'},
  {name: 'Alf', amount: '34hjbjbsdf94334', role: 'user'}]

for(let i=0; i<items.length; i  ){
    items[i].amount = decryptAmount(items[i].amount);
}

That should edit the amount property of objects to the decrypted value