JAVASCRIPT: how can I remove a json object in json object?

Question

how can I remove a json object in json object?

[
    [
        {"name":"formtype","value":"ordering"},          
        {"name":"extera_Ordering_json[id]","value":"1"}
   ],
   [
        {"name":"extera_Ordering_json[count]","value":"20"},               
        {"name":"coupon","value":""},
        {"name":"formtype","value":"ordering"}, 
        {"name":"extera_Ordering_json[id]","value":"2"}
   ],
   [
       {"name":"extera_Ordering_json[count]","value":"7"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"3"}
   ],
   [   {"name":"extera_Ordering_json[count]","value":"1"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"4"}
   ]
]

I save this json in ordering

Now I want remove

   [   {"name":"extera_Ordering_json[count]","value":"1"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"4"}
   ]

My key is extera_Ordering_json[id] (it is not unique)

I do this:

ordering = JSON.parse(ordering);
var temp;
$.each(ordering, function(idx, obj)
{
    if(obj.Ordering_json[id] != 4)// not works
    {
        temp[] = obj;
    }
    temp[] = obj
}
ordering = JSON.stringify(temp);

idx != id ... :-?

Álvaro González
– Álvaro González

2017-01-04 10:29:36 +00:00
Commented Jan 4, 2017 at 10:29 — Álvaro González
– Álvaro González, Commented Jan 4, 2017 at 10:29

charlietfl · Accepted Answer · 2017-01-04 10:50:00Z

"extera_Ordering_json[id]" is simply a string so you need to iterate all the objects in each array and find the one that has that string as name and check the value of the same object

Here's a map and filter approach

var data = [
    [
        {"name":"formtype","value":"ordering"},          
        {"name":"extera_Ordering_json[id]","value":"1"}
   ],
   [
        {"name":"extera_Ordering_json[count]","value":"20"},               
        {"name":"coupon","value":""},
        {"name":"formtype","value":"ordering"}, 
        {"name":"extera_Ordering_json[id]","value":"2"}
   ],
   [
       {"name":"extera_Ordering_json[count]","value":"7"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"3"}
   ],
   [   {"name":"extera_Ordering_json[count]","value":"1"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"4"}
   ]
]
var searchVal = 1
data=data.map(function(arr){
   return arr.filter(function(o){
      return o.name !== "extera_Ordering_json[id]" || +o.value !== searchVal
   })
})

console.log(data)

Alex · Accepted Answer · 2017-01-04 10:49:53Z

You could use the splice method on your JSON array to remove an element at a specific index:

var ordering = JSON.stringify([
    [
        {"name":"formtype","value":"ordering"},          
        {"name":"extera_Ordering_json[id]","value":"1"}
   ],
   [
        {"name":"extera_Ordering_json[count]","value":"20"},               
        {"name":"coupon","value":""},
        {"name":"formtype","value":"ordering"}, 
        {"name":"extera_Ordering_json[id]","value":"2"}
   ],
   [
       {"name":"extera_Ordering_json[count]","value":"7"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"3"}
   ],
   [   {"name":"extera_Ordering_json[count]","value":"1"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"4"}
   ]
])

temp = JSON.parse(ordering);
temp.splice(3, 1)
ordering = JSON.stringify(temp);
console.log(ordering)

IARKI · Accepted Answer · 2017-01-04 10:57:25Z

in your case extera_Ordering_json[id] is not key, it is value of name

    var ordering = [
        [
            {"name": "formtype", "value": "ordering"},
            {"name": "extera_Ordering_json[id]", "value": "1"}
        ],
        [
            {"name": "extera_Ordering_json[count]", "value": "20"},
            {"name": "coupon", "value": ""},
            {"name": "formtype", "value": "ordering"},
            {"name": "extera_Ordering_json[id]", "value": "2"}
        ],
        [
            {"name": "extera_Ordering_json[count]", "value": "7"},
            {"name": "coupon", "value": "1"},
            {"name": "formtype", "value": "ordering"},
            {"name": "extera_Ordering_json[id]", "value": "3"}
        ],
        [{"name": "extera_Ordering_json[count]", "value": "1"},
            {"name": "coupon", "value": "1"},
            {"name": "formtype", "value": "ordering"},
            {"name": "extera_Ordering_json[id]", "value": "4"}
        ]
    ];
    var temp = [];
    $.each(ordering, function (key1, obj1) {
        $.each(obj1, function (key2, obj2) {
            if (obj2.name == 'extera_Ordering_json[id]' && obj2.value == 4) {
                delete ordering[key1];
            }
        });
        if(ordering[key1] != null){
            temp.push(ordering[key1]);
        }
    });
    console.log(JSON.stringify(temp));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Iurii Drozdov · Accepted Answer · 2017-01-04 11:06:00Z

This should do what you want:

var ordering = [
    [
        {"name":"formtype","value":"ordering"},          
        {"name":"extera_Ordering_json[id]","value":"1"}
    ],
    [
        {"name":"extera_Ordering_json[count]","value":"20"},               
        {"name":"coupon","value":""},
        {"name":"formtype","value":"ordering"}, 
        {"name":"extera_Ordering_json[id]","value":"2"}
    ],
    [
       {"name":"extera_Ordering_json[count]","value":"7"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"3"}
    ],
    [   
       {"name":"extera_Ordering_json[count]","value":"1"},
       {"name":"coupon","value":"1"},
       {"name":"formtype","value":"ordering"},
       {"name":"extera_Ordering_json[id]","value":"4"}
    ]
];
    var sVal = 4;
    var indexToRemove = false;
    ordering.forEach(function(element, index) {
       element.forEach(function(subelement) {
           if (subelement.name == "extera_Ordering_json[id]" 
              && parseInt(subelement.value) == sVal){
              indexToRemove = index;
           }
       });
    });

    if (false !== indexToRemove) {
        ordering.splice(indexToRemove, 1);
    }

Aju · Accepted Answer · 2017-01-04 11:35:10Z

1

You are using id instead of idx. try this

if(obj.Ordering_json[idx] != 4)

edited Jan 4, 2017 at 11:35

Aju

4,5997 gold badges38 silver badges61 bronze badges

answered Jan 4, 2017 at 10:32

CM Azwar

235 bronze badges

Comments

Jimish Fotariya · Accepted Answer · 2022-12-02 18:52:41Z

1

you can use splice method

ordering = [ /*Array without json parsing*/ ];
var indexToDelete = 3;
ordering.splice( indexToDelete, 1); 
// 1 indicates only one element from array 
console.log(ordering);

edited Dec 2, 2022 at 18:52

answered Jan 4, 2017 at 10:36

Jimish Fotariya

1,0979 silver badges21 bronze badges

3 Comments

ANDA Over a year ago

thanks. your answer is by index. I want delete it by Ordering_json[id] value

charlietfl Over a year ago

don't use delete on arrays, it leaves holes and length will still remain the same

Jimish Fotariya Over a year ago

Right @charlietfl , I forget to mention. Thanks :)

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