34 lines
835 B
TypeScript
34 lines
835 B
TypeScript
import {writable} from "svelte/store";
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/**
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* A store that contains a list of error messages to be displayed.
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*/
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function createErrorStore() {
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const { subscribe, set, update } = writable<string[]>([]);
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return {
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subscribe,
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addErrorMessage: (e: string|Error): void => {
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update((messages: string[]) => {
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let message: string;
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if (e instanceof Error) {
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message = e.message;
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} else {
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message = e;
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}
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if (!messages.includes(message)) {
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messages.push(message);
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}
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return messages;
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});
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},
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clearMessages: (): void => {
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set([]);
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}
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};
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}
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export const errorStore = createErrorStore();
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