Question

var filteredKeyItems = ['primary','gender','regular','normal']
var filteredValuesItems = ['genreal','M',true]

// Output should be:

filteredKeyItems = ['primary','gender']
filteredValuesItems = ['genreal','M']

这里有两个包含键和值的数组的片段。如何在值数组中过滤值为true和normal的代码中表示的多个键。最终输出应按照摘要中的指示进行。

谢谢。

Answer 1

美容功能方式是：

var filteredKeyItems = ['primary','gender','regular','normal']
var filteredValuesItems = ['genreal','M',true]

function filterKeyItem(keyItem) {
    return keyItem !== 'regular' && keyItem !== 'normal';
}

filteredValuesItems = filteredValuesItems.filter((valueItem, index) => filterKeyItem(filteredKeyItems[index]));
filteredKeyItems = filteredKeyItems.filter(filterKeyItem);

console.log('filteredKeyItems', filteredKeyItems);
console.log('filteredValuesItems', filteredValuesItems);

要稍微提高性能，可以使用一个简单的for循环来填充结果数组。

Answer 2

我们也可以按照以下步骤进行操作

    var filteredKeyItems = ['primary','gender','regular','normal']
    var filteredValuesItems = ['genreal','M',true]


    let filterTwo=[]
    let filterOne=filteredKeyItems.filter((element,index)=>{
     
      //we can assign condition here
    if(element=="primary" || element=="gender" ){
       filterTwo.push(filteredValuesItems[index])
      return  element}}  )
   
    console.log(filterOne)
    console.log(filterTwo)

如何过滤具有多个键和值的两个数组？

2 个答案: