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response.json() vs JSON.parse() todo
(version: 1)
Benchmark.js
Comparing performance of:
response.json() vs JSON.parse()
Created:
2 years ago
by:
Registered User
Go to the latest result
Tests:
response.json()
fetch('https://jsonplaceholder.typicode.com/todos/1').then(response => response.json()).then(data => console.log(data));
JSON.parse()
fetch('https://jsonplaceholder.typicode.com/todos/1').then(response => response.text()).then(data => console.log(JSON.parse(data)));
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
response.json()
JSON.parse()
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser/OS:
Chrome 120 on Windows
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<iframe src="https://measurethat.net/Embed?id=503831" width="100%" height="500px"></iframe>
response.json()
10K/s
JSON.parse()
10K/s
View exact numbers
Test name
Executions per second
✓
response.json()
10,066 Ops/sec
JSON.parse()
9,980 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net. **What is tested?** The provided benchmark tests two different ways to parse JSON data in JavaScript: `response.json()` and `JSON.parse()`. The test cases use the `fetch` API to retrieve a JSON response from an external URL (`https://jsonplaceholder.typicode.com/todos/1`) and then parse the response as JSON. **Options compared** There are two options being compared: 1. **response.json()**: This method is built-in to the Fetch API in modern browsers. It returns a promise that resolves with the parsed JSON data. 2. **JSON.parse()**: This is a built-in JavaScript function that parses a string into a JSON object. **Pros and Cons** * `response.json()`: + Pros: Built-in, efficient, and widely supported in modern browsers. + Cons: Not available in older browsers, requires the Fetch API to be implemented. * `JSON.parse()`: + Pros: Widely supported in all browsers, doesn't require any external libraries or APIs. + Cons: Requires an additional function call, which can lead to slower performance. **Other considerations** The choice between `response.json()` and `JSON.parse()` depends on the specific use case. If you're targeting modern browsers with the Fetch API implemented, `response.json()` is a good choice. However, if you need to support older browsers or want to avoid relying on the Fetch API, `JSON.parse()` might be a better option. **Library** There doesn't appear to be any external library used in this benchmark. The `fetch` API and built-in JavaScript functions like `JSON.parse()` are part of the standard browser implementation. **Special JS feature or syntax** No special features or syntax are being tested in this benchmark. It's a straightforward comparison of two common methods for parsing JSON data in JavaScript. **Benchmark preparation code and definition json explanation** The provided JSON defines a benchmark with two test cases: * `Script Preparation Code`: empty, indicating that no script needs to be prepared before running the benchmark. * `Html Preparation Code`: empty, indicating that no HTML page needs to be prepared before running the benchmark. * `Name` and `Description`: provide metadata for the benchmark. The individual test cases are defined in a separate array: * The first test case uses `response.json()` to parse the JSON response from the external URL. * The second test case uses `fetch` to retrieve the same JSON response, but then calls `JSON.parse()` to parse the response as JSON. **Latest benchmark result explanation** The latest benchmark results show the performance characteristics of each test case: * The "response.json()" test case has an execution rate of approximately 10065.62890625 executions per second. * The "JSON.parse()" test case has a slightly lower execution rate, around 9979.927734375 executions per second. These results suggest that `response.json()` is faster than `JSON.parse()`. However, the actual performance difference may vary depending on specific use cases and browser implementations.
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