In JavaScript, there are some additional assignment operators that we can use in addition to the normal equal sign. There are several, but the most common are addition/subtraction assignment operators. Here is an example…
let startYear = 2011;
startYear += 10;The output of startYear would be 2021. We could do the same thing with -=.
Happy Coding!
Clay Hess
The experimental EditContext API gives developers a new foundation for building custom rich text editors by separating text input and selection from rendering. Instead of relying on contenteditable, you attach an EditContext to a focusable element and manage your own text model, selection state, and UI updates—while still receiving browser-grade events for typing, caret movement, and IME composition. This demo highlights the core event flow and why character bounds matter for accurate input UI, especially in custom-rendered editors.
The Device Posture API helps web apps adapt to foldable devices by detecting whether a screen is continuous or folded and reacting to posture changes.
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