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打coding的奥特曼
打coding的奥特曼

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去重

方法 1 

const arr = [1,1,2,3,4,4,5] const uniqueArr = [...new Set(arr)]; console.log(uniqueArr); //[ 1, 2, 3, 4, 5 ]
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方法2 

import _ from 'lodash'; const arr = [1,1,2,3,4,4,5]； const uniqueArr = _.uniq(arr); console.log(uniqueArr); //[ 1, 2, 3, 4, 5 ]
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