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[Home](./index.md) &gt; [@csstools/css-tokenizer](./css-tokenizer.md) &gt; [ParseError](./css-tokenizer.parseerror.md) &gt; [sourceStart](./css-tokenizer.parseerror.sourcestart.md)

## ParseError.sourceStart property

The index of the start character of the current token.

**Signature:**

```typescript
sourceStart: number;
```
