JavaScript Array indexOf() methodThe JavaScript array indexOf() method is used to search the position of a particular element in a given array. This method is case-sensitive. The index position of first element in an array is always start with zero. If an element is not present in an array, it returns -1. SyntaxThe indexOf() method is represented by the following syntax: Parameterelement - It represent the element to be searched. ReturnAn index of a particular element. JavaScript Array indexOf() method exampleLet's see some simple examples of indexOf() method. Example 1Here, we will print the position of an element. Test it NowOutput: 1 Example 2In this example, we will provide the index value from where the search starts. Test it NowOutput: 3 Example 3Here, we will search an element which is not present in an array. Test it NowOutput: -1
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