Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
JSON.parse vs string.split.map(Number)
(version: 0)
Comparing performance of:
String.split.map(Number) vs JSON.parse
Created:
4 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var array = new Array(5000).fill('1').map(() => Math.random().toString()); var str = JSON.stringify(array);
Tests:
String.split.map(Number)
str.split(',').map(Number);
JSON.parse
JSON.parse(str);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
String.split.map(Number)
JSON.parse
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one month ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36
Browser/OS:
Chrome 149 on Windows
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=630010" width="100%" height="500px"></iframe>
JSON.parse
11K/s
String.split.map(Number)
5K/s
View exact numbers
Test name
Executions per second
✓
JSON.parse
11,091 Ops/sec
String.split.map(Number)
4,692 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down what's being tested in the provided JSON. **Benchmark Definition** The benchmark is comparing two approaches: 1. **String Split and Map**: This approach splits a string into an array using `str.split(',')` and then maps each element to a number using `map(Number)`. The purpose of this test seems to be evaluating the performance of JavaScript's built-in string manipulation functions. 2. **JSON Parse**: This approach parses a JSON-formatted string into a JavaScript object using `JSON.parse(str)`. **Comparison Options** The two approaches differ in how they process the input data: * String Split and Map: This approach splits the input array into individual elements, converts each element to a number, and then returns an array of numbers. This approach can be slow for large arrays because it involves multiple iterations over the data. * JSON Parse: This approach parses the entire string at once, converting all elements to numbers in a single step. This approach is likely faster for large arrays because it minimizes the number of iterations over the data. **Pros and Cons** Here are some pros and cons of each approach: String Split and Map: Pros: * Easy to understand and implement * Can be used with any type of string Cons: * Slow for large arrays due to multiple iterations * May not be as efficient as other approaches that process the data in a single step JSON Parse: Pros: * Fast for large arrays because it minimizes iterations * Efficiently processes JSON-formatted strings Cons: * Limited to parsing JSON-formatted strings only * Requires additional libraries or modifications for non-JSON data **Library and Purpose** In this benchmark, the `JSON` library is used to parse JSON-formatted strings. The purpose of this library is to provide a standardized way of representing and manipulating JSON data in JavaScript. **Special JS Feature or Syntax** There are no special JavaScript features or syntax mentioned in this benchmark that require specific handling or optimization. However, it's worth noting that the `map` method is used with the `Number` function, which is a built-in JavaScript function for converting strings to numbers. **Other Alternatives** If you need to compare other string manipulation approaches, some alternatives might include: * Using regular expressions to split and extract data * Using array methods like `forEach`, `reduce`, or `every` * Using optimized library functions like `lodash`'s `at` method Keep in mind that these alternatives may have different performance characteristics depending on the specific use case. I hope this explanation helps!
Related benchmarks
JSON.parse vs string.split
JSON.parse vs string.split small array
JSON.parse vs string.splitd
JSON.parse vs string.split for numbers
Comments
Confirm delete:
Do you really want to delete benchmark?