You can use the findIndex value like this, which runs a function for each item in the array, which is passed the element, and its index. Returning from it will assign the return value to the return value of findIndex:const letters = [ { letter: 'a', }, { letter: 'b', }, { ...
This post will discuss how to get the first element of an array in JavaScript... A simple and fairly efficient solution to fetch the first element of an array in JavaScript is using the `[]` operator.
This post will discuss how to get the last element of an array in JavaScript. 1. Using [] operator The recommended solution to get any element of an array is using the [] operator. To get the last element, simply pass its index to the [] operator, as shown below: 1 2 3 4 5 6...
In the JavaScript for...of loop, you can use the Array.prototype.entries() method to get both, the index and the corresponding value of each element, for example, like so: const arr = ['apple', 'bana
JavaScript has a lot of built-in methods that can be used to manipulate arrays. Let’s find out what we can implement to access the last element of the array. Using length property Suppose, you have an array and you know the length of that array. const animals = ['giraffe', '...
Method 1: Get Last Element in Array in JavaScript Using length Property The “length” property specifies the length of an array or a string. This property can be utilized to get the array’s last element by specifying the length of an array and subtracting “1” from it to access the ...
JavaScript Code:// Define a function 'intersectionWith' that computes the intersection of two arrays based on a custom comparator function const intersectionWith = (a, b, comp) => a.filter(x => // Filter elements from array 'a' that have a matching element in array 'b' based on the ...
// Fastest method, requires the array is in a variablemyArray[myArray.length-1];// Also very fast but it will remove the element from the array also, this may or may not matter in your case.myArray.pop();// Slowest but very readable and doesn't require a variablemyArray.slice(-1...
In JavaScript, the for loop can be achieved in different ways - for, for...in, for...of, and forEach - which are useful for different case scenarios. for..of allows us to access the element of the array directly without having to use any index value which is typically inserted into...
First way: Using array.length property In array, we have alengthproperty by using that we can find how many elements present in an array if we subtractarr.length-1we can get the last element. Example: constusers=['sai','jim','alex','era'];constlastElement=users[arr.length-1];console...