Manipulating data from array of objects inside object to array of objects inside array

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I'm trying to manipulate data, and I'd need a solution for this

Tried mapping in different ways, but none of them worked.

This is the input data:

   data_input = {
    2000: [{
            _id: 0,
            name: "Jeff",
            value: 130,
            year: 2000
        },
        {
            _id: 1,
            name: "Bill",
            value: 30,
            year: 2000
        }
    ],
    2001: [{
            _id: 0,
            name: "Jeff",
            value: 20,
            year: 2001
        },
        {
            _id: 1,
            name: "Bill",
            value: 100,
            year: 2001
        }
    ]
 }

Here is the expected result:

   data_output = [{
        year: 2000,
        year_data: [{
                _id: 0,
                name: "Jeff",
                value: 130
            },
            {
                _id: 1,
                name: "Bill",
                value: 30
            }
        ]
    },
    {
        year: 2001,
        year_data: [{
                _id: 0,
                name: "Jeff",
                value: 20
            },
            {
                _id: 1,
                name: "Bill",
                value: 100
            }
        ]
    }
 ]

Data Structures: Objects and Arrays :: Eloquent JavaScript, Objects allow us to group values—including other objects—to build more The notation for getting at the elements inside an array also uses square brackets. In the second, we access the property named max in the Math object (which is a This example demonstrates two methods you can use to manipulate arrays: Arrays of objects don't stay the same all the time. We almost always need to manipulate them. So let's take a look at how we can add objects to an already existing array. Add a new object at the start - Array.unshift. To add an object at the first position, use Array.unshift.

You could map the values and destructure the year from the rest object.

var data_input = { 2000: [{ _id: 0, name: "Jeff", value: 130, year: 2000 }, { _id: 1, name: "Bill", value: 30, year: 2000 }], 2001: [{ _id: 0, name: "Jeff", value: 20, year: 2001 }, { _id: 1, name: "Bill", value: 100, year: 2001 }] },
    result = Object
        .values(data_input)
        .map(a => ({ year: a[0].year, year_data: a.map(({ year, ...rest }) => rest) }));

console.log(result);
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JavaScript Array of Objects Tutorial – How to Create, Update, and , JavaScript Array of Objects Tutorial – How to Create, Update, and Loop Through On average I work with JSON data 18 times a week. And I still need to google for specific ways to manipulate them almost every time. What if In this article, I'll show you the basics of working with object arrays in JavaScript. To transform object of objects to object of array of objects, use the concept of Object.fromEntries() along with map().

try this

 data_input = {
    2000: [{
            _id: 0,
            name: "Jeff",
            value: 130,
            year: 2000
        },
        {
            _id: 1,
            name: "Bill",
            value: 30,
            year: 2000
        }
    ],
    2001: [{
            _id: 0,
            name: "Jeff",
            value: 20,
            year: 2001
        },
        {
            _id: 1,
            name: "Bill",
            value: 100,
            year: 2001
        }
    ]
 }

var output = Object.keys(data_input).map(item => {
  let year_data = data_input[item].map(data => {
    delete data.year
    return data
  });
  return {
    year: item,
    year_data:year_data
  }
});

console.log(output);

Useful Javascript Array and Object Methods, Creates a new array by manipulating the values in another array. Great for data manipulation and it is often used in React because it is an immutable method. objects by a property, and removing duplicate items in array. Define and create a single object, with the keyword new. Object, JavaScript is designed on a simple object-based paradigm. An object is a collection of properties, and a property is an association between a Objects As we know from the chapter Data types, there are eight data types in JavaScript.

Indexed collections, This includes arrays and array-like constructs such as Array objects and TypedArray objects. JavaScript does not have an explicit array data type. The Array object has methods for manipulating arrays in various ways, such If provided, thisObject becomes the value of the this keyword inside the body´┐Ż Given an array of objects with values such: items = [{header: "h1", value: "header 1 test"}, {header: "h2", value: "header 2 test"}] I want to be able to loop through each object in the array and take their values and turn them into a key:value pair object and insert that into a new array that should look like this.

Convert an Object to an Array in JavaScript, In this tutorial, you will learn how to convert an object to an array using Object's methods. RAML 1.0 Arrays: inside an object or plain array? reference document that explains how RAML data types do map to define arrays of objects inline without

Deserialize array of json objects with json object inside. Ask Question I want online value that is inside userinfo object. ` for receiving serial data (but