javascript / beginner
Snippet
Updating Stores with Functions
The update method takes a callback function that receives the current value and returns the new value. This is useful for updates based on existing state.
snippet.js
javascript
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import { count } from './stores.js';function increment() {count.update(n => n + 1);}
svelte
Breakdown
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import { count } from './stores.js';
Imports the store instance from another file.
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count.update(n => n + 1);
Calls update with a function that adds 1 to the current value 'n'.