Happy Stack Building Happy Stack: Naming things This week in Happy Stack has been all about monitoring more services. But before we get to that, there’s the small problem of worms, Roxanne.
Happy Stack Building Happy Stack: Notifications This week in Happy Stack has been all about notifications. How the app notifies you (and optionally your clients) when something goes wrong with one of the services you’re monitoring.
TypeScript Simplify imports with path mapping Use path mapping to make your import statements cleaner and more robust.
Tools Verify a checksum Use the “shasum” command to validate a checksum. Specify the algorithm (256, 512, etc.) with the “-a” flag.
MongoDB MongoDB ObjectId timestamp Every ObjectId includes an embedded timestamp. No need for a separate “created at” property.
CSS Specify a default line height for each font size in Tailwind CSS Say goodbye to fiddling with leading classes in your markup.
JavaScript Nested optional chaining in JavaScript How to access nested properties safely, using JavaScript’s optional chaining operator.
Gatsby Custom Netlify CMS previews in Gatsby How to implement useful Netlify CMS previews for your Gatsby powered website.
API Rounding errors in JSON Schema validation Rounding errors mean acceptable data sometimes fails JSON Schema validation. Here’s how to fix that.
CSS CSS-only highlighter effect How to apply a “highlighter” effect to text using background gradients.
Gatsby “Module not found” error with Gatsby, Netlify CMS, and PostCSS When using Netlify CMS with Gatsby and PostCSS, you must load the PostCSS plugin first.
Node.js Undocumented Node Migrate options The Migrate package documentation is somewhat lacking. Here are some handy options not covered by the README.
Tools Execute a command with another user’s environment ”sudo -u ” doesn't inherit the user’s environment. Here’s how to fix that.
TypeScript Custom TypeScript type guards Type guards let you provide TypeScript with more information about a variable’s type.
JavaScript Chai assert error Chai lets you assert that some code throws an error. The key is to pass the test subject, not the test result.
JavaScript Selectively disable ESLint How to disable ESLint for a single line, a block of code, or an entire file.
MongoDB Query MongoDB by array field size How to find documents according to the size of an array field.
TypeScript Numeric environment variables and TypeScript TypeScript’s strict type checking can cause problems when working with numeric environment variables. Here’s a solution.
Tools Visual Studio Code “actions” shortcut Using your mouse to select a “code action” is slow and cumbersome. Use this keyboard shortcut instead.
JavaScript Compute the difference between two JavaScript arrays How to calculate the difference between two JavaScript arrays, using the filter and includes methods.
Tools Sort the output of git status When working on a codebase with a lot of unstaged or untracked changes, the default output of “git status” is unhelpful.