hot reloading
Hot reloading is a development technique that applies code changes to a running program without restarting it.
Hot reloading is a technique for applying edited code to a program while it is running, without a restart. Because only the changed parts are swapped in while the app keeps its current state, developers can see the effect of a change immediately.
It is widely used in web front-end tooling, mobile app frameworks and game engines. Unlike live reload, which reloads the whole page or app, hot reloading preserves the running state.
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