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bigint vs string equality
(version: 0)
Benchmark.js
Comparing performance of:
bigint vs string
Created:
3 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var bigInt1 = 1000000n var bigInt2 = 50n var str1 = '1000000' var str2 = '50'
Tests:
bigint
bigInt1===bigInt2
string
str1===str2
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
bigint
string
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser/OS:
Chrome 120 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=498519" width="100%" height="500px"></iframe>
bigint
15.5M/s
string
15.0M/s
View exact numbers
Test name
Executions per second
✓
bigint
15,515,560 Ops/sec
string
14,958,703 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the explanation of the provided benchmark. **What is being tested?** The benchmark compares the performance of two approaches to check for equality: 1. `bigint` comparison: Using BigInt values (a built-in JavaScript type that can represent large integers) to compare two numbers. 2. `string` comparison: Comparing two strings using the `===` operator. **Options compared** The benchmark is comparing the following options: * `bigint` comparison * `string` comparison **Pros and Cons of each approach:** 1. **BigInt comparison** * Pros: + More accurate for large numbers due to their 64-bit integer size. + Can provide better performance for certain numerical operations. * Cons: + May have a higher overhead due to the need to handle special handling of BigInt values. + Not supported in older JavaScript engines or browsers. 2. **String comparison** * Pros: + Widely supported across different JavaScript engines and browsers. + Often preferred for simplicity and readability. * Cons: + May lose precision for large numbers due to string representation limitations. + Can be slower than BigInt comparisons for very large numbers. **Library/Function usage** There is no explicit library or function used in the benchmark. However, note that JavaScript engines often have built-in optimizations and handling for specific data types like integers or strings. **Special JS feature/Syntax** The benchmark uses the `n` suffix with BigInt values (e.g., `1000000n`) to indicate that they should be interpreted as BigInt literals, rather than regular string numbers. This is a relatively recent addition to JavaScript, introduced in ECMAScript 2015 (ES6). **Other alternatives** If you were to compare these approaches for different types of data or operations, some additional options might include: * **Float comparison**: Using floating-point numbers (`Number`) instead of BigInt values. * **Array comparison**: Comparing arrays using methods like `every()` or `some()`, or by iterating through elements and comparing each one individually. * **Object comparison**: Comparing objects using methods like `===` (for primitive value equality) or `JSON.stringify()` and `JSON.parse()`. Keep in mind that the choice of approach depends on the specific use case, performance requirements, and compatibility considerations.
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