How to usesplit() and join() methods in Javascript

Q: How to usesplit() and join() methods in Javascript

First, split the string into sub-strings using the split() method by passing the index also.Again join the substrings on the passed substring using join() method.Returns the index of the nth occurrence of the string.

Approaches to get the nth occurrence of a string:

Approach 2: Using indexOf() method

First, split the string into sub-strings using the split() method by passing the index also.
Again join the substrings on the passed substring using join() method.
Returns the index of the nth occurrence of the string.

Example: In this example, the split() and join() methods are used to get the index of a substring.

Javascript

// Input string
let string = "Geeks gfg Geeks Geek Geeks gfg";

// String to search
let searchString = "Geeks";

// occurrence number
let occurrence = 3;
console.log(
    occurrence +
        "rd occurrence of a '" +
        searchString +
        "' in " +
        string +
        "'."
);

// Function to get index of occurrence
function getPos(str, subStr, i) {
    return str.split(subStr, i).join(subStr).length;
}

function GFG_Fun() {
    console.log(getPos(
        string, 
        searchString, 
        occurrence
    ));
}

GFG_Fun();

Output

3rd occurrence of a 'Geeks' in Geeks gfg Geeks Geek Geeks gfg'.
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How to get nth occurrence of a string in JavaScript ?

In this article, the task is to get the nth occurrence of a substring in a string with the help of JavaScript. We have many methods to do this some of which are described below: