Get element from object (array) by its class

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Give me some tips please, I have an object with data - I get it with parentNode. Here is my data in the object:

I need to get data of element ul.district-areas. I can do this by its key - 2, but I would like to explicitly indicate that I need an element with a specific class. Is it possible to do this, and if so, how?


You should convert the Dom List to an array and then find the className as per your Match.

  1. Approach for finding only direct child
     Array.from(parentNode).filter((dom) => dom.className.contains("district-areas"))

    Arrays of Objects | Think Java, The instance variables are private : we can access them from inside this class, but not from other classes. Each element of the array is a reference to a String . JavaScript : find an object in array based on object's property (and learn about the "find" function) Published on March 20, 2017 March 20, 2017 • 322 Likes • 49 Comments Report this post

You can do check if an element has a class via the classList property:


In you case, I would filter the array and return only those elements that match the specified classes

var filteredArray = myArray.filter(function(element){ return element.classList.contains("this-class"); });

If your "array" is not actually an array and is actually a HTMLCollection, then you would need to convert it to an array first:

myArray = Array.from(myArray)

Data Structures: Objects and Arrays :: Eloquent JavaScript, The notation for getting at the elements inside an array also uses square In the second, we access the property named max in the Math object (which is a the book down to focus on a terrible flashback to 10th grade math class—hold on! NullPointerException – when the array is null. IllegalArgumentException – when the given object array is not an Array. ArrayIndexOutOfBoundsException – if the given index is not in the range of the size of the array. Below programs illustrate the get() method of Array class: Program 1:

you could do the following:

Array.from(parentNode).filter(it => it.localName == "ul" && it.className == "district-areas")

Indexed collections, However, you can use the predefined Array object and its methods to work Because elements are also properties, you can access the using� The Type of the object encompassed or referred to by the current array, pointer, or reference type, or null if the current Type is not an array or a pointer, or is not passed by reference, or represents a generic type or a type parameter in the definition of a generic type or generic method.

You can use Javascript Array.From() to filter out your exact matching see the below screen shots for example

Object.values(), The Object.values() method returns an array of a given object's own you can find a Polyfill in the tc39/proposal-object-values-entries or in the� Arrays are Objects. Arrays are a special type of objects. The typeof operator in JavaScript returns "object" for arrays. But, JavaScript arrays are best described as arrays. Arrays use numbers to access its "elements". In this example, person[0] returns John:

if you want to convert object to array You can use Object.values()

Input : var object = { 0: '23', 1: 'geeksforgeeks', 2: 'true' };
Output : Array ["23", "geeksforgeeks", "true"]

.get(), Retrieve the DOM elements matched by the jQuery object. as an array, so we can use the array dereferencing operator to get at the list item instead:� Get Elements by Matching the Value of the “class” Attribute. document. getElementsByClassName(class_values) Return a live HTMLCollection. const x = document. getElementsByClassName ("js"); for (let e of x) { e. style.color = "green"; } Note: The class_values can be multiple classes separated by space. For example: "aa bb", and it'll get

The Arrays class in java.util package is a part of the Java Collection Framework. This class provides static methods to dynamically create and access Java arrays. It consists of only static methods and the methods of Object class. The methods of this class can be used by the class name itself. Class Hierarchy: java.lang.Object ↳ java.util.Arrays