How do we Use JavaScript IndexOf Operation in Array

Indexof JavaScript Array

In this article, we will learn about indexof the javascript array.

IndexOf() Method:

It returns an index of the first occurrence of a given search element.




  • searchElement: indicates element to be searched
  • number : indicates an index of the first occurrence of the element to be searched


var studNames = ["Ram", "Ravi", "Raju", "Raghu", "Gopal"];
document.write(studNames.indexOf("Ravi")); //1
  1. In this first line above code, we have created an array variable “studNames” and assigned five string values.
  2. Then we find the index value of a particular string in “studNames”, we need to use the indexOf() operation. The index of the value to be found must be given in the function

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