CODEWITHSUNDEEP
javascriptarraysget
Jesus
Jesus

Reputation: 462

Get data from multidimensional array js

I have a JS array, for example:

const array1 = [{"entrance":"20","a":"10"},{"entrance":"15","b":"25"}];

I want to get entrance values as a new array. Till today I'm using a for-loop to do it, like this:

var entrance = [];
for(i=0;i<array1.length;i++){
  entrance[i] = array1[i]["entrance"];
}

This works perfect, but I wonder if there is a prettier way to do this. Do you have any suggestions?

Upvotes: 1

Views: 42

Answers (4)

fjplaurr
fjplaurr

Reputation: 1950

It has not been mentioned yet. You could use forEach:

const array1 = [{"entrance":"20","a":"10"},{"entrance":"15","b":"25"}];
const res = [];
array1.forEach((obj) => {res.push(obj.entrance)});
console.log(res);

Upvotes: 0

Ramesh Reddy
Ramesh Reddy

Reputation: 10652

Pretty way using map and destructuring:

const array1 = [{"entrance":"20","a":"10"},{"entrance":"15","b":"25"}];
const entrances = array1.map(({ entrance }) => entrance);

Upvotes: 0

Mamun
Mamun

Reputation: 68933

You can try with map()

The map() method creates a new array populated with the results of calling a provided function on every element in the calling array.

const array1 = [{"entrance":"20","a":"10"},{"entrance":"15","b":"25"}];

var entrance = array1.map(i => i.entrance);
console.log(entrance);

Upvotes: 1

Sebastian Kaczmarek
Sebastian Kaczmarek

Reputation: 8515

Use .map():

const array1 = [{"entrance":"20","a":"10"},{"entrance":"15","b":"25"}];
const entrance = array1.map((e) => e.entrance);

console.log(entrance);

Upvotes: 4

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