Loop through array of object and if property match, then slice that object - Javascript [duplicate]

Question

I have array of objects, I am trying to loop through that array and if I find found a match, I wanna slice that object..

var object = [
  {
    "Name": 'Kshitij',
    "LastName": 'Rangari',
    "CountryBorn": 'India',
    "CountryStay": 'USA'
  },

  {
    "Name": 'Pratik',
    "LastName": 'Rangari',
    "CountryBorn": 'India',
    "CountryStay": 'Canada'
  },

  {
    "Name": 'Pratibha',
    "LastName": 'Rangari',
    "CountryBorn": 'India',
    "CountryStay": 'India'
  },

  {
    "Name": 'Ankita',
    "LastName": 'Raut',
    "CountryBorn": 'India',
    "CountryStay": 'Australia'
  },

  {
    "Name": 'Wayne',
    "LastName": 'Rooney',
    "CountryBorn": 'UK',
    "CountryStay": 'UK'
  }

]

console.log(object);

object.forEach(function(x){
  if (x.Name==='Kshitij'){

  }
})

object.map (obj =>{

  obj.AllFirstName = obj['Name'];
  console.log(obj['AllFirstName']);

})

console.log('------------------------------')

console.log(object);

I wanna loop through Object and want to find if Name === 'Kshitij' and Name ==='Pratik', I want to remove those objects from the array.

How would I do this ?

arr.forEach(function callback(currentValue, **index**, array) ...). Also while calling an array object is technically correct it is a bit misleading here. — ASDFGerte
– ASDFGerte, Commented Aug 12, 2017 at 16:15

Nina Scholz · Accepted Answer · 2017-08-13 07:56:47Z

3

You could use return a filtered array, which filters out all the given values for a given key of the objects in the array.

const without = (key, values) => object => !values.includes(object[key]);

var array = [{ Name: 'Kshitij', LastName: 'Rangari', CountryBorn: 'India', CountryStay: 'USA' }, { Name: 'Pratik', LastName: 'Rangari', CountryBorn: 'India', CountryStay: 'Canada' }, { Name: 'Pratibha', LastName: 'Rangari', CountryBorn: 'India', CountryStay: 'India' }, { Name: 'Ankita', LastName: 'Raut', CountryBorn: 'India', CountryStay: 'Australia' }, { Name: 'Wayne', LastName: 'Rooney', CountryBorn: 'UK', CountryStay: 'UK' }];

console.log(array.filter(without('Name', ['Kshitij', 'Pratik'])));

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

edited Aug 13, 2017 at 7:56

answered Aug 12, 2017 at 16:15

Nina Scholz

388k26 gold badges367 silver badges416 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

user663031 Over a year ago

You're taking the "requirement" stated as "remove" too seriously, which is leading you to the horrible suggestion to use splice, which then forces you to work backwards, or turn other somersaults. Furthermore, your logic seems to only remove the first occurrence. Not to mention that the whole thing is a dup of about eighteen other questions.

Nina Scholz Over a year ago

@torazaburo, right, i take words seriously. and i have misread the question, but what the op wants was only later clear. anyway, now with filtering and using a staight fprward approach. btw, the dupe target is horrible.

user663031 Over a year ago

Much better. Wrt the dup target, I am not happy about it either, but this question falls into the category of so incredibly basic that there doesn't seem to be a clean dup, sort of like a question about how to add two numbers in JS.

Julian Zucker · Accepted Answer · 2017-08-12 19:04:41Z

2

Use the builtin filter to remove all items that match a certain predicate. Then set the original object to the filtered list.

var namesToRemove = ['Kshitij', 'Pratik'];
object = object.filter(e => !namesToRemove.includes(e.Name))

edited Aug 12, 2017 at 19:04

answered Aug 12, 2017 at 16:14

Julian Zucker

5544 silver badges13 bronze badges

1 Comment

guest271314 Over a year ago

"I want to remove those objects from the array." .filter() returns a new array

kukkuz · Accepted Answer · 2017-08-12 16:19:00Z

Use filter() function to get a new array with the objects removed - see demo below:

var object=[{"Name":'Kshitij',"LastName":'Rangari',"CountryBorn":'India',"CountryStay":'USA'},{"Name":'Pratik',"LastName":'Rangari',"CountryBorn":'India',"CountryStay":'Canada'},{"Name":'Pratibha',"LastName":'Rangari',"CountryBorn":'India',"CountryStay":'India'},{"Name":'Ankita',"LastName":'Raut',"CountryBorn":'India',"CountryStay":'Australia'},{"Name":'Wayne',"LastName":'Rooney',"CountryBorn":'UK',"CountryStay":'UK'}];

var result = object.filter(function(e){
  return e.Name !== 'Kshitij' && e.Name !=='Pratik'
});

console.log(result);

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

"I want to remove those objects from the array." .filter() returns a new array

Collectives™ on Stack Overflow

Loop through array of object and if property match, then slice that object - Javascript [duplicate]

3 Answers 3

3 Comments

1 Comment

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

3 Comments

1 Comment

2 Comments

Linked

Related