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JS BigInt big number performance v2 BIS 2
(version: 0)
Compare Number vs BigInt for big numbers subtraction and lt comparison
Comparing performance of:
BigInt vs Number vs BigInt cast to Number compare
Created:
3 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var bigInt1 = 10000000000000000000000000000n var bigInt2 = 10000000000000000000000000005n var number1 = 1000000 var number2 = 1000005
Tests:
BigInt
a = bigInt1 b = bigInt2 c = a - b d = a < b
Number
a = number1 b = number2 c = a - b d = a < b
BigInt cast to Number compare
a = bigInt1 b = bigInt2 c = a - b cn = Number(c) d = cn < 10
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
BigInt
Number
BigInt cast to Number compare
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.1:latest
, generated one year ago):
Let's break down the benchmark definition and results. **Benchmark Definition** The benchmark is called "JS BigInt big number performance v2 BIS 2" and its purpose is to compare the performance of two approaches for working with large numbers in JavaScript: using the `BigInt` data type versus using the traditional `Number` data type. There are three test cases: 1. **BigInt**: This test case uses the `BigInt` data type to represent two large numbers, subtracts one from the other, and then performs a less-than comparison. 2. **Number**: This test case uses the traditional `Number` data type to represent two large numbers, subtracts one from the other, and then performs a less-than comparison. 3. **BigInt cast to Number compare**: This test case is similar to the first two, but it casts the result of the subtraction using `BigInt` to a `Number` before performing the less-than comparison. **Library and Features** There is no external library used in this benchmark. The JavaScript built-in data types (`BigInt` and `Number`) are being compared. **Test Results** The results show that the **BigInt** test case executes at approximately 551,231 executions per second on Chrome 108 on Windows Desktop. In contrast, the **Number** test case executes at approximately 587,630 executions per second on the same platform. This suggests that using the traditional `Number` data type is slightly faster than using `BigInt`. The **BigInt cast to Number compare** test case executes at a lower rate of approximately 441,811 executions per second. This may be due to the overhead of casting a `BigInt` value to a `Number`. **Alternatives and Considerations** Other alternatives for working with large numbers in JavaScript include: * Using libraries like **bignumber.js** or **decimal.js**, which provide more advanced functionality for arithmetic operations on large numbers. * Using specialized data types, such as the **BigNumber** type provided by some JavaScript engines (e.g., V8). * Implementing custom solutions using bitwise operations and other techniques to manipulate large numbers. However, these alternatives may introduce additional overhead or require more complex code. The traditional `BigInt` data type, introduced in ECMAScript 2018, provides a simple and efficient way to work with large integers in JavaScript. In general, the choice of approach depends on the specific requirements and constraints of your project. If you need to perform arithmetic operations on very large numbers, using `BigInt` or an equivalent library may be the best choice. However, if you only need to handle smaller integers, using traditional `Number` values may be sufficient.
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