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JSON.parse vs string.split - cognito groups
(version: 0)
Comparing performance of:
JSON.parse vs String.split
Created:
3 years ago
by:
Guest
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Script Preparation code:
var groups = "[\"cip-assign-license-users\",\"gtpc-team-all\"]"; var groupsString = "cip-assign-license-users,gtpc-team-all";
Tests:
JSON.parse
JSON.parse(groups);
String.split
groupsString.split(',')
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
String.split
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what is being tested. **Benchmark Overview** The benchmark compares two approaches: `JSON.parse()` and `string.split()`. The test case uses a fixed string `groups` that contains comma-separated values, which are then parsed using both methods. The goal is to determine which method performs better in terms of execution speed. **Options Being Compared** * **JSON.parse()**: This method parses the input string into a JavaScript object. In this case, it's used to parse the `groups` string, which contains comma-separated values enclosed in double quotes. * **string.split()**: This method splits the input string into an array of substrings based on a specified delimiter (in this case, the comma character). The resulting array is then returned. **Pros and Cons** * **JSON.parse()**: + Pros: Can handle nested structures and provides a more readable way to represent data. + Cons: May be slower for simple splitting tasks due to its parsing overhead. * **string.split()**: + Pros: Fast and efficient, ideal for simple splitting tasks. + Cons: Limited to basic splitting scenarios and does not provide any meaningful results. **Other Considerations** * The benchmark uses a fixed string `groups` that contains comma-separated values. This ensures that the test case is deterministic and consistent across runs. * Both methods are subject to browser-specific variations in performance, which is reflected in the benchmark's results. **Library Used (if applicable)** In this case, there is no explicit library used beyond the built-in `JSON` and `String` objects. **Special JS Feature or Syntax** There is no special JavaScript feature or syntax being tested here. The test case relies solely on standard JavaScript features. **Benchmark Results Interpretation** The benchmark results show that `string.split()` outperforms `JSON.parse()` in this specific scenario, with an execution speed of 7045844.5 executions per second compared to 2512630.25 executions per second for `JSON.parse()`. However, it's essential to note that these results are dependent on the browser and device used, as specified in the benchmark results. **Alternative Approaches** If you were to rewrite this benchmark or explore alternative approaches: * Using a regex-based solution (`/,\s*/g`) might be an option for splitting the string. * Another approach could involve using a library like Lodash, which provides a `split()` function that can handle more complex splitting scenarios. Keep in mind that the choice of approach depends on the specific requirements and constraints of your project.
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