It wouldn’t sound too obvious but sometimes your function might need to return multiple values. For instance, in one of the applications I’m working on, I have a JavaScript function where I have to calculate two different values and return them. So, I needed to return two values from t...
Functions return only one value. How can we simulate returning multiple values from a function?When we call a function in JavaScript, we can only return one value using the return statement:const getAge = () => { return 37 } const getName = () => { return 'Flavio' }How can we ...
How to add two arrays into a new array in JavaScript - An ordered group of indexed elements is represented by an array, which is a type of data structure. Merging two or more arrays to create a larger array that contains all the items from the original a
Whenever we say we want to return an object from a function, we return one object from another object (function). There are various ways to return an object using a function. ADVERTISEMENT Let us now see how we can return an object from a function in JavaScript. ...
In this case, the value of this inside callback function has been set to an object with two values: 4 and 67. In the console, you should get the output as shown below: The value of this is printed 5 times because there are 5 elements in the tasks array. To return an ...
How to find duplicate values in a JavaScript array - In this tutorial, we will discuss how we can find duplicate or repeating values in a JavaScript array using different methods or approaches to reach the solution to this problem. Below is the list of t
JavaScript hasthemap()methodto zip two arrays of a certain length. But if the corresponding two array does not match each other’s length, then the minimum lengthen array printsundefinedas its match. ADVERTISEMENT Here along with themap()method, we will see a demonstration of theArray.form(...
The Set object is used to store unique values of primitive values or object references.Javascript push method merging two arrays1 2 3 4 5 const array1 = ['John', 'John']; const array2 = ['Jack', 'Jack']; const arr = [...array1, ...array2]; const unique = [...new S...
In JavaScript, arrays are a fundamental data structure that developers use to store and manipulate data. Comparing arrays is a common task in programming, but it can be a bit tricky due to the way JavaScript handles arrays. In this blog post, we'll ex
In JavaScript, all exceptions are simply objects. While the majority of exceptions are implementations of the global Error class, any old object can be thrown. With this in mind, there are two ways to throw an exception: directly via an Error object, and through a custom object. ...