Jur van den Berg
cb8400eea3
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29 lines
830 B
TypeScript
29 lines
830 B
TypeScript
import { readonly, Ref, ref } from 'vue';
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/**
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* Random labels as a library function.
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* Will return a random label from the given options.
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* Calling the `update` function that is returned will pick a new label.
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* @param options
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*/
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export function randomLabel(options: string[]) {
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const label = ref<string>();
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const randomLabel = () => {
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let newLabel;
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do {
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newLabel = options[Math.floor(Math.random() * options.length)];
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} while (newLabel === label.value);
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return newLabel;
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};
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label.value = randomLabel();
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return {
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// This type refinement is proper as the `undefined` value can never happen from this point onwards
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label: readonly(label as Ref<string>),
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// Updates the returned `label` with a new randomly chosen one
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update() {
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label.value = randomLabel();
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},
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};
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}
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