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JSON.parse & string.split
(version: 0)
Mirror plot use case for more accurate measurements
Comparing performance of:
JSON.parse vs String.split
Created:
5 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var array = new Array(5000).fill([1, 2, 4, 5, 6, 7, 8]) var str = JSON.stringify(array);
Tests:
JSON.parse
JSON.parse(str);
String.split
str.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 its test cases. **Overview of the Benchmark** The benchmark is designed to measure the performance of two JavaScript functions: `JSON.parse()` and `str.split()`. The script preparation code creates an array with 5000 elements, each containing an array, which is then stringified using `JSON.stringify()` to create a JSON representation. This JSON string is then used as input for both functions. **Options Compared** The two functions being compared are: 1. `JSON.parse(str)`: This function parses the given JSON string into a JavaScript object. 2. `str.split(',')`: This function splits the given string at each comma (`,`) character and returns an array of substrings. **Pros and Cons of Each Approach** **JSON.parse()** Pros: * Fast and efficient for parsing JSON data * Can handle nested objects and arrays * Native JavaScript function, so no additional libraries or overhead Cons: * May not be suitable for very large datasets, as it can lead to a stack overflow error * Can throw errors if the input is invalid JSON **str.split()** Pros: * Fast and efficient for string manipulation * Can handle large datasets without significant performance degradation * Native JavaScript function, so no additional libraries or overhead Cons: * Not designed specifically for parsing data, so may not be as efficient as `JSON.parse()` * Requires a specific separator character (in this case, the comma `,`), which may not be suitable for all use cases **Other Considerations** Both functions have their own strengths and weaknesses. In general, if you need to parse structured JSON data, `JSON.parse()` is likely the better choice. However, if you're working with large datasets or need a simple string manipulation function, `str.split()` may be sufficient. **Library Usage** In this benchmark, no external libraries are used beyond the native JavaScript functions. **Special JS Features or Syntax** There are no special JavaScript features or syntax mentioned in the benchmark definition. The test cases only use standard JavaScript functions and variables. **Alternative Benchmarks** Other alternatives for measuring performance can include: * Using a different input data structure, such as an object or a DOM element * Adding additional functionality to the script preparation code, such as sorting or filtering the array * Using a different browser or version of Chrome * Increasing or decreasing the size of the dataset Keep in mind that changing these parameters can affect the results and may not accurately represent real-world usage scenarios.
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