CODEWITHSUNDEEP
javascript
TheDevGuy
TheDevGuy

Reputation: 703

check every values in array of object

I have an array of object like this :

const object = [
     {name: 'John', age: 15},
     {name: 'Victor', age: 15},
     {name: 'Emile', age: 14}
     ]

I need to check if in this array all age are 15. ( just need a boolean for answer ) I need to use something like 'every' method but how with an object ?

Upvotes: 2

Views: 6752

Answers (3)

Sujeet
Sujeet

Reputation: 3810

You can compare the length of the array with length of array of objects with required age. 

const object = [ 
    {name: 'John', age: 15},
    {name: 'Victor', age: 15},
    {name: 'Emile', age: 14}
];
function hasAge(pAge, object) {
    return object.length === object.filter(({ age }) => age === pAge).length;
}
console.log(hasAge(15, object));

Upvotes: 0

Code Maniac
Code Maniac

Reputation: 37755

You just need to extract the property you want to compare

const object = [ {name: 'John', age: 15},{name: 'Victor', age: 15},{name: 'Emile', age: 14}]

let op = object.every(({ age }) => age === 15)

console.log(op)

Upvotes: 2

Alireza HI
Alireza HI

Reputation: 1933

You need to use every:

The every() method tests whether all elements in the array pass the test implemented by the provided function. It returns a Boolean value. Array.prototype.every

So the code will be like:

const object = [
    {name: 'John', age: 15},
    {name: 'Victor', age: 15},
    {name: 'Emile', age: 14}
]
     
const isValid = object.every(item => item.age === 15)
console.log({isValid})

This is js functional ability to test all your elements states.

Upvotes: 4

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