Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
EJEMPLO
(version: 0)
Comparing performance of:
json stringify vs spread
Created:
6 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/react/16.3.0/cjs/react.production.min.js'></script> <script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
console.log('sTART');
Tests:
json stringify
const requestInitialState = { request: { assignee: {}, status: {}, room: {}, user: {}, creator: {}, approvals: [], collaborators: [], category: { project: {}, template: {}, }, data: {}, }, activity: { comments: [], interactions: [], }, isFetchingRequest: false, isAddingCollaborator: false, isCreatingApproval: false, isEditingAssignee: false, showRoomModal: false, showRoomMembersModal: false, isStatusModalVisible: false, }; requestInitialState.request.approvals.push['foo'] const newObject = JSON.parse(JSON.stringify(requestInitialState));
spread
const requestInitialState = { request: { assignee: {}, status: {}, room: {}, user: {}, creator: {}, approvals: [], collaborators: [], category: { project: {}, template: {}, }, data: {}, }, activity: { comments: [], interactions: [], }, isFetchingRequest: false, isAddingCollaborator: false, isCreatingApproval: false, isEditingAssignee: false, showRoomModal: false, showRoomMembersModal: false, isStatusModalVisible: false, }; const newObject = { ...requestInitialState, request: { ...requestInitialState.request, approvals: [ ...requestInitialState.request.approvals, 'foo', ] } };
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
json stringify
spread
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the provided JSON data and explain what's being tested. **Benchmark Definition** The provided `Benchmark Definition` JSON represents a JavaScript microbenchmark. It defines two test cases: 1. "json stringify" 2. "spread" **Test Case 1: "json stringify"** This test case creates an object `requestInitialState` with some properties, including an array of approvals called `approvals`. The benchmark then pushes the string `'foo'` to the `approvals` array and creates a new object `newObject` by parsing the original object using `JSON.parse(JSON.stringify(requestInitialState))`. **Test Case 2: "spread"** This test case is similar to the first one, but instead of creating a new object by parsing the original object, it uses the spread operator (`...`) to create a new object with some properties copied from `requestInitialState` and an updated `approvals` array. **Options Compared** In this benchmark, two different approaches are being compared: 1. **JSON.parse(JSON.stringify())**: This method creates a deep copy of the original object by parsing it as JSON and then stringifying it again. 2. **Spread Operator (`...`)**: This operator creates a new object with some properties copied from the original object. **Pros and Cons** * **JSON.parse(JSON.stringify())**: + Pros: Can be used to create a deep copy of an object, handles complex data structures like arrays and objects. + Cons: Can lead to unexpected behavior if not used carefully (e.g., modifying the original object can affect the copied object). * **Spread Operator (`...`)**: + Pros: More concise and expressive than JSON.parse(JSON.stringify()) for simple cases. It's also more efficient since it only copies the top-level properties. + Cons: May not work correctly if the original object has complex data structures or is modified after creation. **Library** None of these test cases use any external libraries. **Special JS Features/Syntax** Neither of these test cases uses any special JavaScript features or syntax, such as async/await, Promises, or modern ES6+ features. **Other Alternatives** If you need to compare the performance of other methods for creating a copy of an object, some alternatives could be: * `Object.assign()`: Creates a shallow copy of an object. * `Array.prototype.slice()`: Creates a shallow copy of an array. * `lodash.cloneDeep()`: A more comprehensive deep copying library. Keep in mind that each alternative has its own trade-offs and use cases. The spread operator is often the most concise and efficient option, but may not be suitable for complex data structures or modified objects.
Related benchmarks:
Hello World (React vs Combo)
Blaze vs React function
remeda vs lodash vs ramda
React Const anon function vs function
Comments
Confirm delete:
Do you really want to delete benchmark?