# replaceAfter
> Replace the substring after the first occurrence of a specified search string.
## Usage
```javascript
var replaceAfter = require( '@stdlib/string/base/replace-after' );
```
#### replaceAfter( str, search, replacement, fromIndex )
Replaces the substring after the first occurrence of a specified search string.
```javascript
var out = replaceAfter( 'beep boop', ' ', 'loop', 0 );
// returns 'beep loop'
out = replaceAfter( 'beep boop', 'o', 'bar', 0 );
// returns 'beep bobar'
```
To begin searching from a specific index, provide a corresponding `fromIndex` argument.
```javascript
var out = replaceAfter( 'beep boop beep baz', 'beep', 'foo', 5 );
// return 'beep boop beepfoo'
```
If `fromIndex` is less than zero, the starting index is resolved relative to the last string character, with the last string character corresponding to `fromIndex = -1`.
```javascript
var out = replaceAfter( 'beep boop beep', ' ', 'loop', -6 );
// returns 'beep boop loop'
```
## Notes
- If a search string is not present in a provided string, the function returns the provided string unchanged.
- If a search string is an empty string, the function returns the provided string unchanged.
- If `fromIndex` resolves to an index which is greater than or equal to `str.length`, the function returns the provided string unchanged.
## Examples
```javascript
var replaceAfter = require( '@stdlib/string/base/replace-after' );
var out = replaceAfter( 'beep boop', 'p', 'see', 0 );
// returns 'beepsee'
out = replaceAfter( 'Hello World!', 'xyz', 'foo', 0 );
// returns 'Hello World!'
out = replaceAfter( 'Hello World!', '', 'foo', 0 );
// returns 'Hello World!'
out = replaceAfter( '', 'xyz', 'foo', 0 );
// returns ''
out = replaceAfter( 'beep boop beep baz', 'beep', 'foo', 5 );
// return 'beep boop beepfoo'
```
[@stdlib/string/base/replace-after-last]: https://github.com/stdlib-js/string/tree/main/base/replace-after-last
[@stdlib/string/base/replace-before]: https://github.com/stdlib-js/string/tree/main/base/replace-before
[@stdlib/string/base/replace-before-last]: https://github.com/stdlib-js/string/tree/main/base/replace-before-last