# @typescript-eslint/no-loss-of-precision

禁止使用失去精度的字面数字。

#### 规则配置

```
// code-linter.json5
{
  "rules": {
    "@typescript-eslint/no-loss-of-precision": "error"
  }
}
```

#### 选项

该规则无需配置额外选项。

#### 正例

```
export const a = 12345;
export const b = 123.456;
export const c = 123e34;
export const d = 12300000000000000000000000;
export const e = 0x1FFFFFFFFFFFFF;
export const f = 9007199254740991;
export const g = 9007_1992547409_91;
```

#### 反例

```
export const a = 9007199254740993;
export const b = 5123000000000000000000000000001;
export const c = 1230000000000000000000000.0;
export const d = .1230000000000000000000000;
export const e = 0X20000000000001;
export const f = 0X2_000000000_0001;
```

#### 规则集

```
plugin:@typescript-eslint/all
```

Code Linter代码检查规则的配置指导请参考Code Linter代码检查。