如何從其他數組中獲取差異之一？

Question

我：

mncs: [ [ 0 ], [ 3 ], [ 5 ], [ 90 ] ], 
 
upMncs: [ [ 0 ], [ 3 ], [ 90 ] ], 
 

 
criteria.mncs 
 
criteria.upMncs

我需要得到addMncs：[[5]]，削減從第一陣列相同的元素，不像
我用lodash 幫助獲取請

Answer 1

您可以在flatten之後使用difference：

var criteria = { 
mncs: [ [ 0 ], [ 3 ], [ 5 ], [ 90 ] ], 
upMncs: [ [ 0 ], [ 3 ], [ 90 ] ], 
} 
console.log(_.difference(_.flatten(criteria.mncs), _.flatten(criteria.upMncs))) 
// [5]