How to add an item to an array in JavaScript without specifying a key

Question

How to add an item to an array in JavaScript without specifying a key

Is there a way to push an object into a JavaScript array without adding extra keys like 0, 1, 2, etc.? Currently, when I push my object into the array, it automatically adds these numeric keys. Below is the code snippet that I have tried:

let newArr = [];
let myId = data['id'];
var key = myId;
var obj = {};
myobj[key] = {
    data: "testdata"
};
newArr.push(myobj);

When I run the above code, the output includes these unwanted numeric keys like 0. How can I achieve pushing the object without those keys?

0: { 
    260: {
        data: 'testdata'
    },
}

javascript arrays typescript vue.js

Answer 1

Answer №1

It appears that you might not need to utilize an array in this scenario. Perhaps what you require is a single object that encompasses all of your key-value pairs?

For instance, consider the following approach:

const data = { id: 1234 };

let myId = data['id'];
var key = myId;
var myobj = {};
myobj[key] = {
  data: "testdata"
};

console.log(myobj);

// You can then include additional data
myobj[2345] = {
  data: "more test data"
};

console.log(myobj);

// Demonstrating Property Access
console.log(myobj[2345])

Answer 2

It appears that you might not need to utilize an array in this scenario. Perhaps what you require is a single object that encompasses all of your key-value pairs?

For instance, consider the following approach:

const data = { id: 1234 };

let myId = data['id'];
var key = myId;
var myobj = {};
myobj[key] = {
  data: "testdata"
};

console.log(myobj);

// You can then include additional data
myobj[2345] = {
  data: "more test data"
};

console.log(myobj);

// Demonstrating Property Access
console.log(myobj[2345])

Answer 3

Answer №2

Give this a shot

newArr.push(...myobj);

Answer 4

Give this a shot

newArr.push(...myobj);

How to add an item to an array in JavaScript without specifying a key

Answer №1

Answer №2

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