---
title: logger
source: https://docs.newrelic.com/docs/new-relic-solutions/build-nr-ui/sdk-component/platform-apis/logger
---

A set of methods to replace `console.log()`, `console.warn()`, and `console.error()`.

### Usage

```js
import { logger } from 'nr1'
```

### Methods

### `logger.error`

```js
const state = { foo: 42, bar: 'token' };


logger.error('Invalid state passed: %O', state);
```

### `logger.log`

```js
logger.log('Hello, my name is %s', 'John Doe');
```

### `logger.warn`

```js
logger.warn('Threshold exceeded by %d%%!', 35);
```