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JSON.parse vs object literal
(version: 0)
Benchmark.js
Comparing performance of:
JSON.parse vs object literal
Created:
2 years ago
by:
Guest
Go to the latest result
Tests:
JSON.parse
var a = JSON.parse("{}")
object literal
var b = {}
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
JSON.parse
object literal
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0
Browser/OS:
Firefox 140 on Mac OS X 10.15
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<iframe src="https://measurethat.net/Embed?id=612404" width="100%" height="500px"></iframe>
object literal
1586.9M/s
JSON.parse
16.0M/s
View exact numbers
Test name
Executions per second
✓
object literal
1,586,904,064 Ops/sec
JSON.parse
16,026,024 Ops/sec
Autogenerated LLM Summary
(model
gemma2:9b
, generated one year ago):
This benchmark compares the performance of two ways to create an empty JavaScript object: **Options:** * **`JSON.parse("{}")`:** This approach uses the built-in `JSON.parse()` method to parse a JSON string representing an empty object (`{}`). * **`{}` (Object literal):** This is the direct way to create an empty object in JavaScript using curly braces. **Pros and Cons:** * **`JSON.parse("{}")`:** * **Con:** It involves parsing, which adds a layer of processing that's potentially slower than creating the object directly. * **Potentially Pro (Edge Cases):** If you are already working with JSON data in your application and need to create an empty object frequently, this approach might be slightly more efficient as it leverages the existing JSON parsing machinery. However, this is usually negligible. * **`{}`:** * **Pro:** This is a direct and concise way to create an empty object. It's generally the most performant option because it avoids the overhead of parsing. **Considerations:** In almost all practical scenarios, using `{}` (object literal) for creating an empty JavaScript object will be faster and more efficient. The `JSON.parse()` method is primarily designed for converting JSON strings into JavaScript objects, not as a shortcut for creating plain objects. **Alternatives:** There are no significant alternatives to these two methods for creating an empty JavaScript object.
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