18 lines
		
	
	
		
			475 B
		
	
	
	
		
			TypeScript
		
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			475 B
		
	
	
	
		
			TypeScript
		
	
	
import type { Ref } from 'vue';
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import { ref } from 'vue';
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export default function useState<T, R = Ref<T>>(
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  defaultStateValue?: T | (() => T),
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): [R, (val: T) => void] {
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  const initValue: T =
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    typeof defaultStateValue === 'function' ? (defaultStateValue as any)() : defaultStateValue;
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  const innerValue = ref(initValue) as Ref<T>;
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  function triggerChange(newValue: T) {
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    innerValue.value = newValue;
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  }
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  return [innerValue as unknown as R, triggerChange];
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}
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