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javascript append to object

Hannes101 
// Spread syntax allows an iterable (in this case an object) to be expanded

const originalObj = { name: 'John', age: 34 }
let newObj = { ...originalObj, city: 'New York' }
// newObj is now { name: 'John', age: 34, city: 'New York' }

// it can also be used with the same object
newObj = { ...newObj, language: 'en' }
// { name: 'John', age: 34, city: 'New York', language: 'en' }
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4
4
Emi-le 105 points 

                                    var list = [];

list.push({name:'John', last_name:'Doe'});
list.push({name:'Jane', last_name:'Doe'});

console.log(list);
/* Result:
[
  {
    "name": "John",
    "last_name": "Doe"
  },
  {
    "name": "Jane",
    "last_name": "Doe"
  }
]
*/

4 (4 Votes)
0
4.33
6
Pavel Strakhov 105 points 

                                    alerts.push({num : 3, app:'helloagain_again',message:'yet another message'});

4.33 (6 Votes)
0
3.5
2
Samuel Oliveira 85 points 

                                    var alerts = [ 
    {num : 1, app:'helloworld',message:'message'},
    {num : 2, app:'helloagain',message:'another message'} 
]

3.5 (2 Votes)
0
3
2
Michael AM 115 points 

                                    How about storing the alerts as records in an array instead of properties of a single object ?

var alerts = [ 
    {num : 1, app:'helloworld',message:'message'},
    {num : 2, app:'helloagain',message:'another message'} 
]
And then to add one, just use push:

alerts.push({num : 3, app:'helloagain_again',message:'yet another message'});

3 (2 Votes)
0
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