This short post will discuss with you about what are different methods of object constructor. There are generally 4 methods of it we'll discuss about them.

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Methods of Object Constructor

• Object.keys(obj) - Returns an array of keys
• Object.values(obj - Returns an array of values
• Object.entries(obj) -Returns an array of [key, value] pairs
• Object.fromEntries() - Returns a new object from itrable of [key, value] pairs.

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Object.keys(obj)

This method takes an object as an argument and returns an array of the object's own enumerable string-keyed property pairs in the form of [jey, value]

const obj = {
    one: 1,
    two: 2, 
    three: 3
}; 

console.log(Object.entries(obj)); 

// -> [["one", 1], ["two", 2], ["three", 3]]

Object.fromEntries()

This method is simply the reverse of Object.entries() - This static method allows you to easily transform a list of key-value pairs into an object.

const myArray = 
[['one', 1], ['two', 2], ['three', 3]]; 
const obj = Object.fromEntries(myArray); 
console.log(obj); 
// => {one: 1, two: 2, three: 3}

Object.values()

This method takes an object as an argument and returns an array of values.

const obj = {
    one: 1, 
    two: 2, 
    three: 3
}; 
console.log(Object.values(obj)); 
// => [1,2,3]

Object.keys()

This method takes an object as an argument an returns an array of keys.

const obj = {
    one: 1, 
    two: 2, 
    three: 3
}; 

console.log(Object.keys(obj)); 
// => ["one","two","three"]

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