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How to loop object and get value from an object

I have a question about how to loop an object in typescript and to get the value that I want.
my object looks like this:
mockdata = {
"subobj1": {
"order": 1
"value": "abc"
},
"subobj2": {
"order": 2
"value": "aaa"
},
...
}
I want to loop this object and only get the subobject, if order == 1
what I expect is to get object
"subobj1": {
"order": 1
"value": "abc"
}
any solutions?

Just loop through the object using for in syntax and find the respective value!
const mockdata = {
"subobj1": {
"order": 1,
"value": "abc"
},
"subobj2": {
"order": 2,
"value": "aaa"
},
}
let output;
for (const property in mockdata) {
if (mockdata[property].order === 1) {
output = {
[property]: mockdata[property]
}
break;
}
}
console.log('result', output);

Here's a pretty slim way to do it. I usually use Object.keys or .entries to all my obj for loops
const arrOfOrderEqualToOne = Object.entries(mockdata).filter(([key, value]) => value.order === 1));

Try this
let mockdata = {
"subobj1": {
"order": 1,
"value": "abc"
},
"subobj2": {
"order": 2,
"value": "aaa"
},
}
let temp;
Object.keys(mockdata).forEach(key=>{
if(mockdata[key].order==1){
temp=mockdata[key]
}
})
console.log(temp)

LINQ WHERE clause equivalent in javascript

I am looking to extract information from my javascript array `lstObj' that looks like this:
[
{
"DealerId": "1",
"Type": "Apple,Orange"
},
{
"DealerId": "2",
"Type": "Mango"
},
{
"DealerId": "3",
"Type": "Mango"
}
]
I want to check if there is an item that has Type = Mango and DealerID not = 2.
In C# linq I would do something like this:
if(lstObj.Any(x=>x.Type.Split(',').Contains("Mango") && x.DealerID != 2))
{
//Do something
}
How can I achieve the same using javascript?

This should do. If there is no item it will return empty array, otherwise it will return items.
let result = lstObj.filter(dealer => dealer.Type.split(',').includes('Mango') && dealer.DealerId != 2);
let lstObj = [
{
"DealerId": "1",
"Type": "Apple,Orange"
},
{
"DealerId": "2",
"Type": "Mango"
},
{
"DealerId": "3",
"Type": "Mango"
}
]
let result = lstObj.filter(dealer => dealer.Type.split(',').includes('Mango') && dealer.DealerId != 2)
console.log(result)

You can use some:
var result= array.some(function (item) {
return item.Type.split(",").includes("Mango") && item.DealerID != 2;
});

Remove a particular name inside an array [duplicate]

This question already has answers here:
How can I remove a specific item from an array in JavaScript?
(142 answers)
Closed 4 years ago.
{
"list": [{
"name": "car",
"status": "Good",
"time": "2018-11-02T03:26:34.350Z"
},
{
"name": "Truck",
"status": "Ok",
"time": "2018-11-02T03:27:23.038Z"
},
{
"name": "Bike",
"status": "NEW",
"time": "2018-11-02T13:08:49.175Z"
}
]
}
How do I remove just the car info from the array.

To achieve expected result, use filter option to filter out car related values
var obj = {"list":[ {"name":"car", "status":"Good", "time":"2018-11-02T03:26:34.350Z"}, {"name":"Truck", "status":"Ok", "time":"2018-11-02T03:27:23.038Z"}, {"name":"Bike", "status":"NEW", "time":"2018-11-02T13:08:49.175Z"} ]}
let result = {
list: []
}
result.list.push(obj.list.filter(v => v.name !=='car'))
console.log(result)
codepen - https://codepen.io/nagasai/pen/MzmMQp
Option 2: without using filter as requested by OP
Use simple for loop to achieve same result
var obj = {"list":[ {"name":"car", "status":"Good", "time":"2018-11-02T03:26:34.350Z"}, {"name":"Truck", "status":"Ok", "time":"2018-11-02T03:27:23.038Z"}, {"name":"Bike", "status":"NEW", "time":"2018-11-02T13:08:49.175Z"} ]}
let result = {
list: []
}
for(let i =0; i< obj.list.length; i++){
if(obj.list[i].name !== 'car' ){
result.list.push(obj.list[i])
}
}
console.log(result)

const obj = JSON.parse(jsonString);
let yourArray = obj.list;
let filteredArray = yourArray.filter(elem => elem.name !== "car");

Removing an object from an array if it exists in the array already (Otherwise add it)

I have a set of checkboxes - which the user ticks on. The checkboxes pass some data an id and a name that i need later on for sorting. Because two objects are not equal even though they contain the same values I cant use Array.includes.
Here is an example of the data
[
{
"id": 9,
"name": "age_group_ids"
},
{
"id": 9,
"name": "age_group_ids"
},
{
"id": 9,
"name": "earnings_group_ids"
},
{
"id": 3,
"name": "earnings_group_ids"
},
]
This is the current function (which would work if the items were not objects
const submitFilterDetails = (value) => {
return async (dispatch,getState) => {
const currentArray = (getState().filter.filtersArray);
if(!currentArray.includes(value)) {
dispatch(addToFiltersArray(value))
} else {
dispatch(removeFromFiltersArray(value));
}
}
}
How can you sort this so I only have unique values

You can use find :
YourArray.find(obj => obj.id == value.id && obj.name == value.name);

const src = [
{
"id": 9,
"name": "age_group_ids"
},
{
"id": 9,
"name": "age_group_ids"
},
{
"id": 1,
"name": "earnings_group_ids"
},
]
const out = src.reduce((acc, curr) => acc.some(i => i.id === curr.id) ? acc : acc.concat([curr]) , [])
// the `out` variable has 2 unique items

remove object using filter doesn't work using javascript

What's wrong with my code below?
var arr = [{
"key": 123,
"player_data": {
"id": 1
}
}, {
"key": 456,
"player_data": {
"id": 1
}
}]
arr.filter(function(el) {
return el.key != 123;
});
console.log(arr);
I expect the object with key 123 will be removed?

Update
arr.filter(function (el) {
return el.key != 123;
});
to
arr = arr.filter(function (el) {
return el.key != 123;
});
Note : filter function does not change the existing array rather returns a new array.
For reference - https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/filter

arr.filter() returns a new array and does not change the original. You are logging the original which has not been affected. Try..
var arr = [{
"key": 123,
"player_data": {
"id": 1
}
}, {
"key": 456,
"player_data": {
"id": 1
}
}]
var foo = arr.filter(function (el) {
return el.key !== 123;
});
console.log(foo);