Javascript一维对象数组喜欢过滤器

发布于07月31日

我有这样的一维物体数组:

var data = [
{
  "empId": 63758,
  "empCode": "000003A",
  "empName": "Robert",
},
{
  "empId": 63759,
  "empCode": "000003B",
  "empName": "Paul John",
},
{
  "empId": 63760,
  "empCode": "000003C",
  "empName": "Chris John",
},
];

我希望按照在sql查询中使用的方式过滤数据，例如"john%"，我希望它也能够获得不区分大小写的文本.

var data = [=
{
  "empId": 63759,
  "empCode": "000003B",
  "empName": "Paul John",
},
{
  "empId": 63760,
  "empCode": "000003C",
  "empName": "Chris John",
},
];

我已经试过了，但结果是只接受全文参数，如"Chris John"

var filter = {
  "empName": "Chris John"
}
data = data.filter(function(item){
for(var key in filter){
    if(item[key] == undefined || item[key] != filter[key])
    return false
}
return true
});

请帮忙，谢谢

推荐答案

您可以编写另一个util方法来判断子字符串值，如下所示:

var data = [ { empId: 63758, empCode: "000003A", empName: "Robert", }, { empId: 63759, empCode: "000003B", empName: "Paul John", }, { empId: 63760, empCode: "000003C", empName: "Chris John", }, ];
var filter = {
  empName: "joh",
};

const checkLikeValue = (a, b) => {
  if(a === b) {
    return true
  } else if (typeof a === "string") {
    const substrings = a.split(" ");
    return substrings.some(str => b.toLowerCase().includes(str))
  }
  return false
}

data = data.filter(function (item) {
  for (var key in filter) {
    if (item[key] == undefined || !checkLikeValue(filter[key], item[key])) return false;
  }
  return true;
});

console.log(data);