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["灏忔槑","灏忕孩","灏忔槑","灏忓垰","灏忕孩"]
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javascript澶嶅埗
const names = ["灏忔槑","灏忕孩","灏忔槑","灏忓垰","灏忕孩"]
const uniqueNames = [...new Set(names)] 
// ["灏忔槑","灏忕孩","灏忓垰"] 

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javascript澶嶅埗
const users = [{id:1}, {id:1}, {id:2}]
[...new Set(users)] // 杩樻槸涓変釜瀵硅薄锛?

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绗簩鎷涳細Map渚︽帰鏈紙涓撴不瀵硅薄涓嶆湇锛?/h4>

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鐪嬪ソ浜嗭紝楠氭搷浣滄潵浜嗭細

javascript澶嶅埗
const users = [{id:1}, {id:1}, {id:2}]
const map = new Map()
users.forEach(item => map.set(item.id, item))
const uniqueUsers = [...map.values()] 
// 鍙墿涓媔d涓?鍜?鐨勪袱涓璞?/span>

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鍘诲勾鍋氶」鐩椂锛屾垜鐢?code>JSON.stringify澶勭悊瀵硅薄锛岀粨鏋滃瓧娈甸『搴忎笉鍚屽氨鍒ゆ柇澶辫...鍚庢潵鏀圭敤鍞竴ID鎵嶆悶瀹氾紒

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绗笁鎷涳細Reduce娴佹按绾匡紙鐏垫椿搴︾垎琛級

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鐩村埌鐪嬭杩欑鍐欐硶锛?/p>

javascript澶嶅埗
const numbers = [1,2,3,2,1,4,5]
const uniqueNums = numbers.reduce((acc, cur) => {
  return acc.includes(cur) ? acc : [...acc, cur]
}, [])
// [1,2,3,4,5]

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javascript澶嶅埗
const uniqueNums = numbers.reduce((acc, cur) => 
  acc.has(cur) ? acc : acc.add(cur), new Set())

涓夊ぇ鎷涙暟姣旀鎿傚彴锛堣〃鏍煎姣旓級

涓汉寮€鍙戝績寰?/h4>

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鈥?strong>鈥嬫暡榛戞澘閲嶇偣鈥?/strong>鈥嬶細

1. 鏁版嵁閲忚秴杩?涓囨潯锛熻刀绱ф姏寮冭８濂旂増Reduce
2. 瑕佸吋瀹笽E娴忚鍣紵鍑嗗濂紹abel淇濆懡绗?/li>
3. 瀵硅薄鍘婚噸璁ゅ噯鍞竴鏍囪瘑锛屽崈涓囧埆鐢↗SON.stringify璧板集璺?/li>

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