Question

我有一个帐户对象，例如：

    {
      "amount": "822370.71",
      "state": "ME"
    },
    {
      "amount": "968817.53",
      "state": "FL"
    },
    {
      "amount": "587603.26",
      "state": "OH"
    },
    {
      "amount": "657617.83",
      "state": "OH"
    },
    {
      "amount": "657617.83",
      "state": "FL"
    }

假设我想过滤掉状态为“FL”和“OH”的对象，我怎么能用filter（）来做呢？感谢。

Answer 1

试试这个

function filterArray (item) {
    if (item.state === "OH" || item.state === "FL"){
        return item;
    }
}

var resultArray = yourArray.filter(filterArray);
console.log(resultArray);

Answer 2

试试这个：

＆＃13;

var array = [{
      "amount": "822370.71",
      "state": "ME"
    },
    {
      "amount": "968817.53",
      "state": "FL"
    },
    {
      "amount": "587603.26",
      "state": "OH"
    },
    {
      "amount": "657617.83",
      "state": "OH"
    },
    {
      "amount": "657617.83",
      "state": "FL"
    }];
    
    var filterArray = array.filter(function(item){
      return item.state === 'FL' || item.state === 'OH';
    });
    
    console.log(filterArray);

＆＃13;

Answer 3

使用带有一个参数的函数的array.filter(callback)并返回满足所需条件的值：

var testArray = [ {
      "amount": "822370.71",
      "state": "ME"
    },
    {
      "amount": "968817.53",
      "state": "FL"
    },
    {
      "amount": "587603.26",
      "state": "OH"
    },
    {
      "amount": "657617.83",
      "state": "OH"
    },
    {
      "amount": "657617.83",
      "state": "FL"
    }];
  var filtered = testArray.filter(isStateFLorOH);

和fucntion回调应该是这样的：

function isStateFLorOH(value){

if(value.state == "FL" || value.satate == "OH")
return value;
}

Javascript：如何使用filter（）过滤掉具有特定值的特定对象？

3 个答案: