JavaScript - Pg. 2
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Running Python in the Browser with Web Assembly
Sep 24, 2020 by Lane WagnerI’ve been wanting to expand boot.dev’s curriculum, and one of the most requested programming languages has been Python.
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Running Go in the Browser with WASM and Web Workers
Sep 23, 2020 by Lane WagnerWe’ve recently made big changes to how we execute Go in the browser on boot.dev and want to explain the enhancements.
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Creating a Custom Tooltip Component in Vue
Aug 28, 2020 by Lane WagnerThere are plenty of libraries out there that will have you up and running with a good tooltip solution in minutes.
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HLS Video Streaming with Node.JS - A Tutorial
Jul 28, 2020 by Lane WagnerIn this quick tutorial, we’ll build a robust video (or music) streaming API using Node JS.
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How to Create a Custom Toggle Switch Component in Vue.js
Jul 21, 2020 by Lane WagnerCustom toggle switches are a pain to code from scratch. So many lines for such a simple UI widget!
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Vue History Mode - Support Legacy Hash URLs
Jul 15, 2020 by Lane WagnerWhen we first launched the boot.dev’s single-page-app, we were using Vue Router’s default hash routing. Hash routing looks ugly to the end-user, and when you want to be able to share parts of your app via direct link those hashes can get really annoying.
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How to Rerender a Vue Route When Path Parameters Change
Jul 07, 2020 by Lane WagnerIn single-page apps that use the Vue Router, it’s common to create a path parameter that changes the behavior of a route.
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Announcing a "Basic Intro to Coding" Course in JavaScript
Jul 06, 2020 by Lane WagnerThe boot.dev app - our new gamified learning platform - just launched its first JavaScript coding course!
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Simple Setup - Vue Linting in VS Code
Jun 17, 2020 by Lane WagnerI’m a gopher by nature, so I expect consistent styling and linting in my codebases. More importantly, I don’t like to think about styling.
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Go's WaitGroup vs JavaScript's PromiseAll
Jun 04, 2020 by Lane WagnerIn applications that are i/o heavy, it can get clunky to synchronously execute high-latency functions one after the other.
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How To Cache Images - React Native Expo (Managed)
Feb 04, 2020 by Lane WagnerCaching images in React Native can be easy, even if you are using Expo’s managed workflow.
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JavaScript With Statement Explained – A Deep Dive
Jan 15, 2020 by Lane WagnerJavaScript’s built-in with statement specifies the default object for the given property and gives us a shorthand for writing long object references.
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JavaScript Map Function Explained - A Deep Dive
Jan 12, 2020 by Lane WagnerThe built-in JavaScript map function returns a new array, where each element in the new array is the result of the corresponding element in the old array after being passed through a callback function.
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Which Method of Iteration in JavaScript is Fastest?
Nov 08, 2019 by Lane WagnerThere are many ways to traverse an array in Javascript. In this benchmark, we will look at five different ways and the pros and cons of each.
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Singletons in ES6 - The Good, The Bad, The Ugly
Nov 04, 2019 by Lane WagnerSingletons are fairly controversial as far as I can tell, especially in JavaScript programming. Let’s take a look at what they are, when to (maybe) use them, and when not to.
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How to Recursively Traverse JSON Objects
Sep 22, 2019 by Lane WagnerI’ve found that it’s pretty rare that I need recursion in application code, but every once in a while I need to write a function that operates on a tree of unknown depth, such as a JSON object, and that’s often best solved recursively.
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Secure Random Numbers in Node.js
Jul 03, 2019 by Lane WagnerQuick answer: use crypto.randomBytes() for cryptographically secure randomness in Node.js. const { randomBytes } = await import('node:crypto'); const buf = randomBytes(256); console.