HMR (1/1)
What is Hot Module Replacement?
    Hot Module Replacement (HMR) exchanges, adds, or removes modules while an application is running, without a full reload. This can significantly speed up development in a few ways:
    • Retain application state which is lost during a full reload.
    • Save valuable development time by only updating what's changed.
    • Instantly update the browser when modifications are made to CSS/JS in the source code, which is almost comparable to changing styles directly in the browser's dev tools.
    • HMR is an opt-in feature that only affects modules containing HMR code.