Penny Liu
Penny Liu
Have you setup environment variables for your application? These environment variables will be defined for you on **`process.env`**. ``` firebase.initializeApp({ apiKey: process.env.REACT_APP_API_KEY, authDomain: process.env.REACT_APP_AUTH_DOMAIN, projectId: process.env.REACT_APP_AUTH_PROJECT_ID, storageBucket: process.env.REACT_APP_STORAGE_BUCKET, messagingSenderId: process.env.REACT_APP_MESSAGING_SENDER_ID,...
Thanks for your detailed explanation. This text appears in **Figure 1** **[Representation and analysis of bacterial genetic variation.](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4703848/figure/f1/)** , especially emphasize on **(b)** In option (ii), we construct the de...