How can I access JavaScript object in array?

Question

My question is how can I Access the object in the array. As an example how can I access the property country?

var arr1 = [{country: "Schweiz", code: 'ch'},{country: "Deutschland", code: 'de'},{country: "Oesterreich", code: 'at'}]

• Nina Scholz: which one do you like to get?
• Shidersz: Maybe using arr1[<some_index>].country ?
• Neil: You need to be more concise. Do you want to return a country based on a specific country name?
• novomanish: Array is a list of objects (countries in your case), so you need to decide which object you want to pick from this list. To get the first object you could use arr1[0] where 0 is an index. To pick an object based on a criteria (e.g. country code), you could use Array.find function

Answer 1

The correct syntax to acces an array of objects property is:

array[index].objectProperty

So, with this said to access the country value of the first index you should use:

arr1[0].country // Schweiz

So, for example, lets print out every country on your array:

var arr1 = [{
 country: "Schweiz",
 code: 'ch'
 },
 {
 country: "Deutschland",
 code: 'de'
 },
 {
 country: "Oesterreich",
 code: 'at'
 }
];
arr1.forEach((item)=>{
 document.write(item.country+"<br>");
})

Note: In the array structure you provided exists a syntax error. You are missing a comma, which is used to separate elements on your array.

Arrays are structures separated with commas, like this:

myArray = [1,2,3,4,5];

So, to separate each index, you need to use a comma. You have:

var arr1 = [{
 country: "Schweiz",
 code: 'ch'
 }, // First separator comma
 {
 country: "Deutschland",
 code: 'de'
 } { // MISSING COMMA HERE
 country: "Oesterreich",
 code: 'at'
 }
]

So, just separate the new element with a comma:

var arr1 = [{
 country: "Schweiz",
 code: 'ch'
 },
 {
 country: "Deutschland",
 code: 'de'
 }, // ADDED COMMA
 {
 country: "Oesterreich",
 code: 'at'
 }
]

Hope this helps with your question. Welcome to Stackoverflow.

Answer 2

If you know the index you just use the index

arr1[1].country;

If you want to look it up by country code you can find it

var arr1 = [{country: "Schweiz", code: 'ch'},{country: "Deutschland", code: 'de'},{country: "Oesterreich", code: 'at'}];
const getCountry = (array, code) => array.find(country => country.code === code);
console.log(getCountry(arr1, 'de'));