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Lodash has a `filter()` function that lets you filter an array using a custom function. Here's what you need to know.
Sending an HTTP PUT request with Axios is easy. Here's what you need to know.
Here's how you can set the authorization header on an Axios HTTP request.
Axios request objects have a `then()` function, which means you can use them with promise chains and async/await. Here's what you need to know.
There are several ways to create a new promise in JavaScript. Here's what you need to know.
The `catch()` function is a convenient bit of syntactic sugar that helps you handle promise errors. Here's what you need to know.
Everything you need to know about the `mongoose.Promise` property.
Comparing two arrays in JavaScript can be tricky. Here's what you need to know.
Comparing dates in JavaScript is tricky. Since dates are objects, `===` compares dates by reference rather than by value. Here's how you can compare dates in vanilla JavaScript.
JavaScript's comparison operators make it easy to compare strings. There's also a `localeCompare()` method for sorting.
The `sendFile()` method lets you send a static file as an Express response. Here's what you need to know.
Here's how you can serve static assets directly from a folder using Node.js and Express.
Handling websockets with an Express server in Node.js is easy with the ws module. Here's how it works.
Google Cloud has a Node.js API that lets you upload Google Cloud Functions, launch new VMs, and compile code on Google Cloud. Here's how you can upload files to Google Cloud Storage.
Webpack Bundle Analyzer generates a zoomable treemap of the contents of your Webpack bundle. Here's how you can get started with webpack-bundle-analyzer.
Webpack configs are a common source of confusion, but they are actually pretty simple to write by hand. Here's what you need to know.
The typeof Operator tells you the type of a value - whether the value is a number, string, object, etc. Here's what you need to know.
JavaScript's built in `sort()` function lets you sort arrays by an object property. Here's what you need to know.
There are numerous ways to iterate over all keys and values in a JavaScript object. Here's 3 ways and the tradeoffs between them.
Node.js has a built-in Buffer type that lets you store arbitrary binary data. Here's what you need to know.