我正在尝试从 2 个数组中检索结果

Question

i am trying to filter first array based on second array text, but i am not getting how to update the count filter to the first array from second array.

First Array:

var firstArray =[{text:"India",count:1,checked:true},
{text:"America",count:2,checked:false},
{text:"Uk",count:1,checked:true}];

Second Array:

var secondArray=[
{text:"India",count:1,checked:false},
{text:"America",count:1,checked:false},
{text:"Uk",count:1,checked:false}
];

Code:

var result=firstArray.filter(o1 => secondArray.some(o2 => o1.text === o2.text));

Result which i am currently getting:

var result=[
{text:"India",count:1,checked:true},
{text:"America",count:2,checked:false},
{text:"Uk",count:1,checked:true}
];

Result which i am trying to get is below:

var result=[
{text:"India",count:1,checked:true},
{text:"America",count:1,checked:false},
{text:"Uk",count:1,checked:true}
];

Thanks for the help!!!

Answer 1

You can map the first array and pick the count from second array like this

var firstArray = [
  { text: "India", count: 1, checked: true },
  { text: "America", count: 2, checked: false },
  { text: "Uk", count: 1, checked: true },
];

var secondArray = [
  { text: "India", count: 1, checked: false },
  { text: "America", count: 1, checked: false },
  { text: "Uk", count: 1, checked: false },
];

firstArray
  .map((x) => {
    const tmp = secondArray.find((y) => y.text === x.text);
    return tmp ? { ...x, count: tmp.count } : null
})
  .filter(Boolean);

Answer 2

A possible solution would like as below

 var firstArray = [{ text: "India", count: 1, checked: true }, { text: "America", count: 2, checked: false }, { text: "Uk", count: 1, checked: true } ]; var secondArray = [{ text: "India", count: 1, checked: false }, { text: "America", count: 1, checked: false }, { text: "Uk", count: 1, checked: false } ]; var result = firstArray.map(o1 => { const o2 = secondArray.find(o2 => o1.text === o2.text); if (;o2) return. return {..,o1: count. o2.count } });filter(o1 =>.!o1); console.log(result)

Answer 3

This solution will merge the two arrays to get the desidered result (as deduced from the answer)

 var firstArray =[{text:"India",count:1,checked:true}, {text:"America",count:2,checked:false}, {text:"Uk",count:1,checked:true}]; var secondArray=[ {text:"India",count:1,checked:false}, {text:"America",count:1,checked:false}, {text:"Uk",count:1,checked:false} ]; const newArray = firstArray.map((el1) => { let sameElList = secondArray.filter((el2) => el2.text === el1.text); let sameEl = sameElList.length > 0 && sameElList.pop(); if(;sameEl){ return el1. } el1.count = Math.min(el1,count. sameEl;count). el1.checked = el1.checked || sameEl;checked; return el1; }). console;log(newArray);