Filter Array based on the Filtering of Another Object having Multiple array in javascript

Question

I have an array of objects. i want to filter array based the object has the condition.

my array is as follow :

var data = [
{
  "name": "nitin",
  "r_id": "1",
  "t_id": "4"
},
{
 "name": "test",
  "r_id": "2",
  "t_id": "3"
},
{
  "name": "test1",
  "r_id": "2",
  "t_id": "4"
},
{
  "name": "test3",
  "r_id": "3",
  "t_id": "3"
},
{
  "name": "test2",
  "r_id": "1",
  "t_id": "1"
}]

and my object is as follows :

var obj = {
role:['1','2'],
type:['1','3']
}

where r_id is the role id and t_id is the type id

so i want the results whose role id is in 1 or 2 AND type id is in 1 or 3.

so mathematically role_id && type_id ((1||2)&&(1||3))

my output should like:

var result = [
{
  'name':'test',
  'r_id':2,
  't_id':3,
},
{
  'name':'test2',
  'r_id':1,
  't_id':1,
}];

So how do you check if a value is in an array? How do you use filter? Answer those and sounds like you will be closer to the answer. — epascarello
– epascarello, Commented Jan 13, 2017 at 13:20
ya i have tried first take object then do foreach of each array then inside of it i have did foreach of my user array but not getting any output.. so confuse about to get result — Nitin
– Nitin, Commented Jan 13, 2017 at 13:20

Mirko Vukušić · Accepted Answer · 2017-01-13 13:21:23Z

1

var data = [
{
  "name": "nitin",
  "r_id": "1",
  "t_id": "4"
},
{
 "name": "test",
  "r_id": "2",
  "t_id": "3"
},
{
  "name": "test1",
  "r_id": "2",
  "t_id": "4"
},
{
  "name": "test3",
  "r_id": "3",
  "t_id": "3"
},
{
  "name": "test2",
  "r_id": "1",
  "t_id": "1"
}]

var obj = {
role:['1','2'],
type:['1','3']
}

let result = data.filter(item=>{
	return obj.role.indexOf(item.r_id) > -1 && obj.type.indexOf(item.t_id) > -1
})

console.log(result)

answered Jan 13, 2017 at 13:21

Mirko Vukušić

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Comments

Anil Talla · Accepted Answer · 2017-01-13 13:23:28Z

0

var data = [
{
  "name": "nitin",
  "r_id": "1",
  "t_id": "4"
},
{
 "name": "test",
  "r_id": "2",
  "t_id": "3"
},
{
  "name": "test1",
  "r_id": "2",
  "t_id": "4"
},
{
  "name": "test3",
  "r_id": "3",
  "t_id": "3"
},
{
  "name": "test2",
  "r_id": "1",
  "t_id": "1"
}]

var obj = {
role:['1','2'],
type:['1','3']
}

var filterItems = data.filter(function(o){ 
   return obj.role.indexOf(o.r_id) != -1  && obj.type.indexOf(o.t_id) != -1; });

console.log(filterItems);

answered Jan 13, 2017 at 13:23

Anil Talla

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Comments

Nina Scholz · Accepted Answer · 2017-01-13 13:24:56Z

0

You could change obj a bit, for corresponding property names in the data, you have, then use Array#filter and check with Array#every for wanted item.

var data = [{ name: "nitin", r_id: "1", t_id: "4" }, { name: "test", r_id: "2", t_id: "3" }, { name: "test1", r_id: "2", t_id: "4" }, { name: "test3", r_id: "3", t_id: "3" }, { name: "test2", r_id: "1", t_id: "1" }],
    obj = { r_id: ['1', '2'], t_id: ['1', '3'] },
    keys = Object.keys(obj),
    result = data.filter(function (o) {
        return keys.every(function (k) {
            return obj[k].indexOf(o[k]) !== -1;
        });
    });

console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

answered Jan 13, 2017 at 13:24

Nina Scholz

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Comments

taguenizy · Accepted Answer · 2017-01-13 13:27:13Z

0

You just need to iterate your data and see if the keys (r_id and t_id) are present in the obj (in the respective arrays). For this you can use Array.filter

var data = [{"name":"nitin","r_id":"1","t_id":"4"},{"name":"test","r_id":"2","t_id":"3"},{"name":"test1","r_id":"2","t_id":"4"},{"name":"test3","r_id":"3","t_id":"3"},{"name":"test2","r_id":"1","t_id":"1"}]

var obj = {
  role:['1','2'],
  type:['1','3']
}

var result = data.filter(function(element){
    return obj.role.indexOf(element.r_id) !== -1 && // element has valid role
           obj.type.indexOf(element.t_id) !== -1 // element has valid type
})

console.log(result)

edited Jan 13, 2017 at 13:27

answered Jan 13, 2017 at 13:21

taguenizy

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