Javascript-SDK - [3.1.0-beta1] - March 6th, 2019
## [3.1.0-beta1] - March 6th, 2019
### Changed
- New APIs for setting `logger` and `logLevel` on the optimizelySDK singleton ([#232](https://github.com/optimizely/javascript-sdk/pull/232)) - `logger` and `logLevel` are now set globally for all instances of Optimizely. If you were passing different loggers to individual instances of Optimizely, logging behavior may now be different.
#### Setting a ConsoleLogger
```js var optimizelySDK = require('@optimizely/optimizely-sdk')
// logger and logLevel are now set on the optimizelySDK singleton optimizelySDK.setLogger(optimizelySDK.logging.createLogger())
// valid levels: 'DEBUG', 'INFO', 'WARN', 'ERROR' optimizelySDK.setLogLevel('WARN') // enums can also be used optimizelySDK.setLogLevel(optimizely.enums.LOG_LEVEL.ERROR) ```
#### Disable logging
```js var optimizelySDK = require('@optimizely/optimizely-sdk')
optimizelySDK.setLogger(null) ```