JavaScript convert An Object into An Array (#shorts )

1 year ago
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Hi Friends,

JavaScript convert An Object into An Array

In JavaScript, you can convert an object into an array using several methods. Here are the examples:

Using Object.entries()
The Object.entries() method returns an array of a given object's own list string-keyed property [key, value] pairs. You can then map over the array and extract just the values or keys as needed.

Example:

const obj = {a: 1, b: 2, c: 3, d: 4};
const arr = Object.entries(obj).map(([key, value]) => ({ key, value }));

console.log(arr); // [{ key: 'a', value: 1 }, { key: 'b', value: 2 }, { key: 'c', value: 3 }, { key: 'd', value: 4 }]

Using Object.keys()
The Object.keys() method returns an array of a given object's own enumerable property names.

Example:

const obj = {a: 1, b: 2, c: 3, d: 4};
const arr = Object.keys(obj).map(key => ({ key, value: obj[key] }));

console.log(arr); // [{ key: 'a', value: 1 }, { key: 'b', value: 2 }, { key: 'c', value: 3 }, { key: 'd', value: 4 }]

Using Object.values()
The Object.values() method returns an array of a given object's own enumerable property values.

Example:

const obj = {a: 1, b: 2, c: 3, d: 4};
const arr = Object.values(obj);

console.log(arr); // [1, 2, 3, 4]

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