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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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