How do I find the last element of an array?

How do I find the last element of an array?

1) Using the array length property The length property returns the number of elements in an array. Subtracting 1 from the length of an array gives the index of the last element of an array using which the last element can be accessed.

What is the index of the last element in an array?

The Last element is nothing but the element at the index position that is the length of the array minus-1. If the length is 4 then the last element is arr[3].

How do you change the last element of an array in JavaScript?

Use the array. prototype. splice() to Remove the Last Element From an Array JavaScript. The splice() method is used to change the array by removing or replacing the elements.

What is the index number of the last element of an array with 8 elements?

array[lastelement]=size-1 ; array-index of last element is =9-1=8.

How would you access the 2nd to last element in an array?

Step 1: Use split() Method to split the elements into an array. var fragment_arr = fragment. split(“/”); Step 2: Use slice(-2) Method to select last 2 element from array, the negative number to select from the end of an array.

How do you find the index of an element in an array?

To find the position of an element in an array, you use the indexOf() method. This method returns the index of the first occurrence the element that you want to find, or -1 if the element is not found. The following illustrates the syntax of the indexOf() method.

What is the index no of the last element of an array with 9 element?

array-index of last element is =9-1=8.

Is last element of array JavaScript?

JavaScript arrays are zero-indexed. The first element of an array is at index 0 , and the last element is at the index value equal to the value of the array’s length property minus 1 .

Which method can be used to add elements in an array in JavaScript?

The push() method is used to add one or multiple elements to the end of an array. It returns the new length of the array formed. An object can be inserted by passing the object as a parameter to this method. The object is hence added to the end of the array.

What is the index number of the last element of an array with 9?