#    
##   
The **`indexOf()` method** will return the index of the value for the search term, if the search term is present in the buffer.
* If the search term is not found, then the method will return `-1`.
* If the search term is present more than once in the buffer, then it will return only the first occurrence.

## Syntax
```
buffer.indexOf(value, start, encoding);
```

## Parameters
* `Value`: The search term that needs to be searched in the buffer.
* `Start`: Refers where to begin the search in the buffer. The default is `0`.
* `Encoding`: If the `value` is a string, then this parameter is used to specify the encoding. The default is `utf8`.


## Example 1
In the following code snippet: 
* In line 1, we will construct the buffer object with the fill as `Example buffer` and store the buffer object in variable `buf`.
* In line 2, we will get the  index of the `buffer` text from buffer string `buf`, with the `buf.indexOf('buffer')` method and print it in the console.

const buf = Buffer.from('Example buffer')
console.log("Index of buffer is "+ buf.indexOf('buffer'))

## Example 2
In the following code snippet:
* In line 1, we will construct the buffer object with the fill as `Example buffer` and store the buffer object in variable `buf`.
* In line 4, we will get the index of character `e` in the buffer object `buf` and print it in the console.

>If the search term is present more than once in the buffer, then it will return only the first occurrence.

const buf = Buffer.from('Example buffer')

//here e has multiple occurrences but returns only first occurrence
console.log("Index of e is "+ buf.indexOf('e'))

# Example 3
In the following code snippet:
* In line 1, we will construct the buffer object with fill as `Example buffer` and store the buffer object in the variable `buf`.
* In line 4, we will get the index of character `z` in buffer object `buf`, with the `buf.indexOf('z')` method and print it in the console.

>If the search term is not found, then the method will return `-1`.

const buf = Buffer.from('Example buffer')

//returns -1 as z is not present in the buffer
console.log("Index of z is "+ buf.indexOf('z'))

What is the Node.js Buffer.indexOf() method?

Returns the first occurrence index of a search term in a buffer or -1 if not found.