javascript / expert
Snippet
Manual Effect Scoping for Dynamic Modules
Expert Vue developers use effectScope to manage the lifecycle of reactive effects outside of the standard component tree. This is crucial for building plugins or externalized logic modules where you need to dispose of multiple watchers or computed properties simultaneously without leaking memory.
snippet.js
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import { effectScope, watch, ref } from 'vue';const scope = effectScope();const counter = ref(0);scope.run(() => {watch(counter, (val) => console.log('Changed:', val));});// Later, to clean up all reactivity inside the scope:scope.stop();
vue
Breakdown
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const scope = effectScope();
Creates an isolated scope container for reactive effects.
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scope.run(() => { ... });
Executes logic where any created reactivity (watchers, computed) is captured by this scope.
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scope.stop();
Disposes of all effects captured within the scope in a single operation.