javascript - How to append data in nested Object?

Javascript - How to append data in nested Object?

To append data to a nested object in JavaScript, you can target the specific nested property and add or update its value. Here's an example:

// Sample nested object let myObject = { name: "John", details: { age: 25, address: { city: "New York", zip: "10001" } } }; // Function to append data to a nested object function appendDataToObject(object, path, value) { let keys = path.split('.'); let current = object; for (let i = 0; i < keys.length - 1; i++) { if (!current[keys[i]]) { current[keys[i]] = {}; } current = current[keys[i]]; } current[keys[keys.length - 1]] = value; } // Append data to the nested object appendDataToObject(myObject, 'details.address.street', '123 Main St'); console.log(myObject);

In this example:

  • The appendDataToObject function takes the object, the path where you want to append the data, and the value to be appended.
  • It splits the path into keys.
  • It iterates through the keys, creating nested objects as needed.
  • Finally, it assigns the value to the last property.

After calling appendDataToObject, the myObject will be updated to include the appended data:

{ name: "John", details: { age: 25, address: { city: "New York", zip: "10001", street: "123 Main St" } } }

This way, you can dynamically append data to a nested object in JavaScript.

Examples

  1. "JavaScript append data to nested object"

    • Code:
      const nestedObject = { outer: { inner: [] } }; nestedObject.outer.inner.push({ newData: 'value' });
    • Description: Appends data to a nested object by pushing a new object to the inner array.

  2. "JavaScript update nested object with new data"

    • Code:
      const nestedObject = { outer: { inner: { key: 'oldValue' } } }; nestedObject.outer.inner.key = 'newValue';
    • Description: Updates the value of a key in a nested object with new data.

  3. "JavaScript push object to nested array in object"

    • Code:
      const nestedObject = { outer: { inner: [] } }; nestedObject.outer.inner.push({ newData: 'value' });
    • Description: Pushes a new object to a nested array within an object.

  4. "JavaScript add property to nested object dynamically"

    • Code:
      const nestedObject = { outer: { inner: {} } }; const key = 'newKey'; nestedObject.outer.inner[key] = 'newValue';
    • Description: Dynamically adds a new property to a nested object.

  5. "JavaScript merge nested objects"

    • Code:
      const nestedObject1 = { outer: { inner: { key1: 'value1' } } }; const nestedObject2 = { outer: { inner: { key2: 'value2' } } }; const mergedObject = { ...nestedObject1, ...nestedObject2 };
    • Description: Merges two nested objects into a new object.

  6. "JavaScript nested object deep cloning"

    • Code:
      const nestedObject = { outer: { inner: { key: 'value' } } }; const clonedObject = JSON.parse(JSON.stringify(nestedObject));
    • Description: Performs a deep clone of a nested object to avoid reference-related issues.

  7. "JavaScript append data to nested array in object"

    • Code:
      const nestedObject = { outer: { inner: [] } }; nestedObject.outer.inner.push('newValue');
    • Description: Appends data to a nested array within an object.

  8. "JavaScript add nested object to existing object"

    • Code:
      const existingObject = { key: 'value' }; const nestedObject = { outer: { inner: 'nestedValue' } }; existingObject.nested = nestedObject;
    • Description: Adds a nested object to an existing object as a property.

  9. "JavaScript deep merge nested objects"

    • Code:
      const nestedObject1 = { outer: { inner: { key1: 'value1' } } }; const nestedObject2 = { outer: { inner: { key2: 'value2' } } }; const mergedObject = deepMerge(nestedObject1, nestedObject2);
    • Description: Performs a deep merge of two nested objects, considering nested structures.

  10. "JavaScript append data to nested object inside array"

    • Code:
      const array = [{ nestedObject: { key: 'oldValue' } }]; array[0].nestedObject.key = 'newValue';
    • Description: Appends data to a nested object inside an array by updating a key value.

More Tags

django-filters json-rpc graphite multiline ta-lib typescript1.8 apache-commons-config ethernet dictionary-attack tidyselect

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