---
title: idPrefix
---
The `idPrefix` setting allows you to specify a prefix that will be used
for all IDs in the SVG output. Its default value is `fs-`.
## Signature
```js
const settings = {
String idPrefix='fs-'
}
```
When you embed multiple SVGs on a single page, the IDs can and will conflict,
especially when using `xlink:href` references (such as for text on paths and
snippets).
This allows you to specify an ID prefix so you can sidestep ID collisions.
## Example
```js
import { Aaron } from "@freesewing/aaron";
const pattern = new Aaron({
idPrefix: "something-else"
})
```
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