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Three main reasons to use a reverse proxy server?

  1. Load balancing
  2. Web acceleration (compression, asset caching, ssl/tls encryption)
  3. Security/anonymity

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[MongooseJS] What will not happen if a document is inserted via the code below that would happen during a normal insert?

const options = {
  upsert: true,
  .findOneAndUpdate(query, update, options);

How can you change this behavior?

Inserting via an upsert will not populate default values.

If you want defaults set, include the following in your options object:

  setDefaultsOnInsert: true,

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What's wrong with the following React code and how can it be fixed:

render() {
  return (

A React component must render a single top-level element.

Wrap all returned elements in a <div>, or a <React.Fragment> if you don't want to introduce additional markup to the DOM.