We’ve all been there—staring at a function that looks like it was written by an over-caffeinated goblin at 3 AM (maybe even your alter ego). You could pretend it doesn’t exist, or you could refactor it. Luckily, GitHub Copilot makes the second option less painful. Let’s get to it. What is code refactoring? Feel free to breeze past this section if you already know what’s involved with refactoring c
JavaScript needs more helper functions for iteration (map, filter, etc.) – where should we put them?
JavaScript needs more helper functions for iteration (map, filter, etc.) – where should we put them? Iteration is a standard that connects operations with data containers: Each operation that follows this standard, can be applied to each data container that implements this standard. In this blog post: We first explore three questions: How does JavaScript’s iteration work? What are its quirks? What
Temporal: getting started with JavaScript’s new date time API Updates: 2022-01-10: Temporal.now was renamed to Temporal.Now. 2021-06-30: Rearranged the content and created a section on the concepts and patterns used by the Temporal API. 2021-06-29: Clarified how Instant uses the ISO-8601 calendar. Listed the properties of some classes. Date, JavaScript’s current date time API is infamously difficu
More information on the syntax and semantics of decorators (optional section) # (This section is optional. If you skip it, you can still understand the remaining content.) The syntax of decorator expressions # A decorator expression starts with a chain of one or more identifiers, separated by dots. Each identifier except the first one can be private (prefix #). Square brackets [] are not allowed
This blog post is first in a series of two: What are wrapper objects for primitive values? How do primitive values get their properties? Each of the primitive types boolean, number, bigint, string and symbol has an associated wrapper class (Boolean, Number, BigInt, String, Symbol). In this blog post, we examine what these classes are good for. Wrapper classes for primitive types # This is an exha
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How to refactor code with GitHub Copilot
Temporal: getting started with JavaScript’s new date time API
JavaScript metaprogramming with the 2022-03 decorators API
What are wrapper objects for primitive values?