---
description: 'Disallow literal numbers that lose precision.'
---

> 🛑 This file is source code, not the primary documentation location! 🛑
>
> See **https://typescript-eslint.io/rules/no-loss-of-precision** for documentation.

## Rule Details

This rule extends the base [`eslint/no-loss-of-precision`](https://eslint.org/docs/rules/no-loss-of-precision) rule.
It adds support for [numeric separators](https://github.com/tc39/proposal-numeric-separator).
Note that this rule requires ESLint v7.

## How to Use

```jsonc
{
  // note you must disable the base rule as it can report incorrect errors
  "no-loss-of-precision": "off",
  "@typescript-eslint/no-loss-of-precision": ["error"]
}
```

<sup>

Taken with ❤️ [from ESLint core](https://github.com/eslint/eslint/blob/main/docs/rules/no-loss-of-precision.md)

</sup>