js多条件查询及分页

if (0) {   // 表达式为数值0、null、undefined、false、空字符串时，条件不成立
  // 不执行
}

var aim = [
  {name:'Anne', age: 0, gender:'female'},
  {name:'Leila', age: 16, gender:'female'},
  {name:'Jay', age: 19, gender:'male'},
  {name:'Mark', age: 40, gender:'male'}
]

let searchProps = {
  name: {
    operator: "LIKE",
    valueType: "STRING",
    value: null,
  },
  age: {
    operator: "EQUAL",
    valueType: "STRING",
    value: 0,
  }
}

function filterBySearch(aim, searchProps) {
  let arr = aim.filter(item => {
    let result = true;
    for(var prop in searchProps) {
      if(searchProps[prop].value == 0) {
        searchProps[prop].value = '0'
      }

      if(searchProps[prop].value) {
        if(searchProps[prop].operator == 'LIKE') {
          result = result && (item[prop].indexOf(searchProps[prop].value) > -1)
        } else {
          result = result && (item[prop] == searchProps[prop].value)
        }
      } else {
        result = result && true
      }
    }
    return result;
  })
return arr

//过滤后数组
let filterArr = filterBySearch(aim, searchProps);
let newArr = Object.assign([], filterArr);
//分页
let pageNum = 10;
let pageSize = 1;
let start = pageNum * pageSize - pageSize;
let end = pageNum * pageSize;
let newData = newArr.slice(start, end);