28 lines
676 B
TypeScript
28 lines
676 B
TypeScript
import { ChatMessage } from '@/models/ChatMessage'
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/**
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* Util function to merge two array of messages and remove duplicates.
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* Also preserve the order
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*
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* @param arr1 Message array 1
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* @param arr2 Message array 2
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* @returns Merged array of messages
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*/
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export function mergeAndRemoveDuplicates(
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arr1: ChatMessage[],
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arr2: ChatMessage[]
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): ChatMessage[] {
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const mergedArray = arr1.concat(arr2)
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const uniqueIdMap = new Map<string, boolean>()
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const result: ChatMessage[] = []
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for (const message of mergedArray) {
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if (!uniqueIdMap.has(message.id)) {
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uniqueIdMap.set(message.id, true)
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result.push(message)
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}
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}
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return result.reverse()
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}
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