如何使用多个字段有条件地过滤和检查匹配项

Question

如何通过传入字符串的多个字段有条件地过滤和检查匹配项； 我有一个请求如下：

{
name: "abc",
email: "",
phone: "123456",
match: "phone"
}

在那种情况下，我必须过滤数组并获得匹配的电话对象作为响应，我有一个如下所示的数组

[{name: "abc", email: "abc@gmail.com",phone:"123456"}, {name: "abc", email: "abc@gmail.com", phone:"1236"}, {name: "pqr", email: "pqr@gmail.com", phone:"123456"} ]

在那种情况下，我预期的 output 如下所示

[{name: "abc", email: "abc@gmail.com",phone:"123456"}, {name: "pqr", email: "abc@gmail.com", phone:"123456"} ]

注意：我的过滤条件会根据它可能所在的匹配字符串而改变

1st request type
{
email: "pqr@gmail.com",
phone: "123456",
match: "phone,email"
}

Result:
[{name: "pqr", email: "pqr@gmail.com", phone:"123456"}]

2nd request type
{
name: "abc",
email: "abc@gmail.com",
phone: "1236",
match: "phone,email"
}

Result:
[ {name: "abc", email: "abc@gmail.com", phone:"1236"}]

姓名，电话或电话或 email 或姓名，email，电话或仅姓名

在那种情况下，我必须根据匹配字符串操作过滤器

Answer 1

尽管我不能 100% 理解您的问题，但我相信下面的代码可以为您提供帮助。

const data = [
  {name: "abc", email: "abc@gmail.com",phone:"123456"}, 
  {name: "abc", email: "abc@gmail.com", phone:"1236"}, 
  {name: "pqr", email: "pqr@gmail.com", phone:"123456"} 
]

const options = {
  name: "abc",
  email: "",
  phone: "123456",
  match: "phone"
}

function filter(data,options){
    const keys = options.match.split(',')
    return data
    .filter(item=>{
        return keys
        .map(key=>item[key] === options[key])
        .every(check => check)
    })
}

const test = filter(data,options)

console.log(test)

Answer 2

您可以定义一个 function, filterArr(arr, cond)可用于测试condition.match属性指定的字段上的每个条件，如下所示：

 const input = [{name: "abc", email: "abc@gmail.com",phone:"123456"}, {name: "abc", email: "abc@gmail.com", phone:"1236"}, {name: "pqr", email: "pqr@gmail.com", phone:"123456"} ], cond1 = {name: "abc", email: "", phone: "123456", match: "phone"}, cond2 = {email: "pqr@gmail.com", phone: "123456", match: "phone,email"}, filterArr = (arr, cond) => arr.filter(item => cond.match.split(',').every(c => cond[c] === item[c])), output1 = filterArr(input,cond1), output2 = filterArr(input,cond2); console.log( output1 ); console.log( output2 );

Answer 3

根据我的理解，您想根据过滤器 object 的match属性中可用的filterObject属性从数组中过滤出对象。

如果我的理解是正确的，您可以借助Array.filter()方法和Array.every()来实现

现场演示：

 const arr = [ {name: "abc", email: "abc@gmail.com", phone:"123456"}, {name: "abc", email: "abc@gmail.com", phone:"1236"}, {name: "pqr", email: "pqr@gmail.com", phone:"123456"} ]; const filterObj = { email: "pqr@gmail.com", phone: "123456", match: "phone,email" }; const matchFilterFields = filterObj.match.split(','); const res = arr.filter(obj => { return matchFilterFields.every(field => filterObj[field] === obj[field]) }); console.log(res);