Since array indexing starts from 0, we need to reference the array with index animals.length-1. For example- const lastElement = animals[animals.length-1];Code language: JavaScript (javascript) lastElement consists of the last element of the array animals. Using slice() method When we want...
* @param array The source array to search in * @param predicate find calls predicate once for each element of the array, in descending * order, until it finds one where predicate returns true. If such an element is found, * findLastIndex immediately returns that element index. Otherwise, ...
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...
本文主要介绍JavaScript(JS) array.lastIndexOf(searchElement[, fromIndex]) 方法。 1、描述 Javascript数组lastIndexOf()方法返回给定元素在数组中的最后一个索引,如果该元素不存在,则返回-1。从fromIndex开始向后搜索数组。 2、语法 它的语法如下: array.lastIndexOf(searchElement[, fromIndex]); 3、参数 search...
Thearray.lengthproperty returns the total number of elements in an array. If we subtract it with-1we will get the last element index. Here is an example: constfruits=["apple","banana","grapes"];constlastElement=arr[arr.length-1];console.log(lastElement);// "grapes" ...
Above code, the last element from an array is 9. For additional reference, you can refer to other posts onJavascript Add,Delete from Array Now, let’s explore multiple ways to retrieve the last element of an array in JavaScript: #Using Array Index without Mutating the Original Array ...
JavaScript Array lastIndexOf() 方法返回可以在数组中找到给定元素的最后一个索引,如果不存在,则返回 -1。 用法: arr.lastIndexOf(searchElement, fromIndex) 这里,arr 是一个数组。 参数: lastIndexOf() 方法包含: searchElement - 要在数组中定位的元素。 fromIndex(可选)- 开始向后搜索的索引。默认情况下...
Array对象允许在一个变量中存储多个值。它存储相同类型元素的固定大小的顺序集合。数组用于存储数据集合,但将数组看作同一类型变量的集合通常更有用。本文主要介绍JavaScript(JS) array.lastIndexOf(searchElement[, fromIndex]) 方法。 原文地址:JavaScript(JS) array.lastIndexOf(searchElement[, fromIndex])...
element:该参数保存当前元素。 返回值:数组中通过测试的最后一个 (highest-index) 元素的索引。否则,如果未找到匹配元素,则返回 -1。 示例1: Javascript // Declare an arrayconstarr1 = [1,45,69,84];// Declare an arrayconstarr2 = [9,-2,6.8];// Declare a function called that// takes an ele...
// 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...