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Arrow function vs bind function 222
(version: 0)
Comparing performance of:
Arrow function vs Bind function
Created:
2 years ago
by:
Guest
Go to the latest result
Script Preparation code:
function f() { return this.a; }
Tests:
Arrow function
const x = {a: 5}; const af = () => { return x.a } af()
Bind function
const x = {a:5}; const af = f.bind(x); af();
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Arrow function
Bind function
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
5 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36
Browser/OS:
Chrome 144 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=625318" width="100%" height="500px"></iframe>
Bind function
213.3M/s
Arrow function
200.5M/s
View exact numbers
Test name
Executions per second
✓
Bind function
213,312,432 Ops/sec
Arrow function
200,457,120 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks! **Benchmark Overview** The provided benchmark compares two approaches: arrow functions and bind functions in JavaScript. **What is tested?** In this benchmark, we are testing how fast an object's property value can be accessed using an arrow function versus a bound function. The test cases use a simple object `x` with a single property `a`. **Options compared** The two options being compared are: 1. **Arrow functions**: A concise way of defining small, single-purpose functions. In this case, the arrow function is used to access the value of `x.a`. 2. **Bind functions**: A way to bind the context of a function to an object, allowing it to be called like a property. **Pros and Cons** * **Arrow functions**: + Pros: concise, easy to read, and efficient. + Cons: can be less readable for complex logic, and might not work as expected with some browser versions. * **Bind functions**: + Pros: provides explicit control over the context, which can be useful in certain scenarios. + Cons: more verbose, harder to read, and can lead to confusion if not used correctly. **Library/Library Purpose** None mentioned in this benchmark. **Special JS feature/Syntax** No special features or syntax are used in these test cases. They are using standard JavaScript features. **Other alternatives** Other approaches could be: * Using a traditional function expression: `function f() { return x.a; }` * Using a method call on the object: `x.a` * Using a lambda function (if supported by the browser): `(x) => x.a` However, these alternatives are not being tested in this benchmark. **Benchmark Preparation Code** The provided script preparation code defines an object `f` with a single property `a`, which is then used in both arrow functions and bind functions.
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