Benchmark: testuii - MeasureThat.net

Script Preparation code:

var test = {
            da: {
                grr: {
                	tete: {
                    	bla : 'blub'
                    }
                }
            },
            dada: {
                brr: 'test2',
                br: null
            }
        };

var isset = function (obj, str) {
        var strArray = str.split('.');
        strArray.shift();
        
        return !strArray.some(function(item, index, leng) {
            if (index < leng.length - 1 && (obj[item] === undefined || obj[item] === null)) {
                return true;
            }
            obj = obj[item];
            
        });
    }

Tests:

testin 1
console.log(test && test.da && test.da.grr)
testing long
console.log(test && test.da && test.da.grr && test.da.grr.tete && test.da.grr.tete.bla)
testing error
console.log(test && test.da && test.da.grr && test.da.grrr.tete && test.da.grrr.tete.bla)
isset 1
console.log(isset(test, 'test.da.grr'))
isset long
console.log(isset(test, 'test.da.grr.tete.bla'))
isset error
console.log(isset(test, 'test.da.grrr.tete.bla'))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
testin 1
testing long
testing error
isset 1
isset long
isset error

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

Measuring JavaScript performance is crucial for ensuring the efficiency and reliability of web applications.

**Benchmark Definition JSON**

The provided benchmark definition JSON represents a JavaScript microbenchmark test case. Here's a breakdown of what's being tested:

* The `Script Preparation Code` section defines a JavaScript object, `test`, with nested properties (`da`, `dada`) containing various values (strings and null).
* The `Html Preparation Code` section is empty, indicating that no HTML code needs to be executed before running the benchmark.

**Individual Test Cases**

Each test case consists of two parts:

1. **Benchmark Definition**: A string that represents the JavaScript expression to be evaluated.
2. **Test Name**: A descriptive name for the test case.

The benchmark definition strings use various techniques to access and manipulate the `test` object, including:

* Using dot notation (`test.da.grr`) to access nested properties
* Using a custom function (`isset`) to check if a property exists in the object

**Options Compared**

In this benchmark, several options are compared:

* **Accessing nested properties**: Different methods for accessing nested properties are used, such as using dot notation (`test.da.grr`), array indices (`test['da']['grr']`), or a custom function (`isset`) that checks if the property exists in the object.
* **Property existence check**: The `isset` function is used to check if a property exists in the object.

**Pros and Cons of Different Approaches**

Here are some pros and cons of different approaches:

* Using dot notation:
	+ Pros: Easy to read and write, intuitive syntax
	+ Cons: Can be slow for deeply nested objects due to the overhead of string parsing and property lookup.
* Using array indices:
	+ Pros: Fast and efficient for accessing properties by name
	+ Cons: Can be cumbersome to read and write, requires careful consideration of property names and indexing.
* Using a custom function (`isset`):
	+ Pros: Provides a clear and concise way to check if a property exists in the object
	+ Cons: May introduce additional overhead due to function call and variable lookups.

**Other Considerations**

When writing benchmark tests, it's essential to consider the following:

* **Warm-up**: Ensure that the test is executed long enough to warm up the JavaScript engine.
* **Input validation**: Validate input values to prevent errors or crashes during testing.
* **Consistency**: Use consistent naming conventions and coding styles throughout the benchmark.

**Alternatives**

If you need to measure performance in a similar context, consider using other benchmarking frameworks or libraries, such as:

* Benchmark.js
* Microbenchmark
* jsbench

These tools provide a range of features, including support for multiple test cases, automated warm-up and cooling-down periods, and statistics analysis.

In conclusion, the provided benchmark definition JSON represents a JavaScript microbenchmark test case that measures performance for accessing nested properties in a JavaScript object. The options compared include different methods for accessing properties, such as dot notation, array indices, and a custom function (`isset`). When writing benchmark tests, it's essential to consider factors like warm-up, input validation, and consistency to ensure accurate and reliable results.

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36

Browser/OS: Chrome 59 on Linux

View result in a separate tab

Test name	Executions per second
testin 1	97114.4 Ops/sec
testing long	97083.6 Ops/sec
testing error	0.0 Ops/sec
isset 1	78843.6 Ops/sec
isset long	69297.8 Ops/sec
isset error	75309.7 Ops/sec

Related benchmarks:

testuii (version: 0)

Comparing performance of: testin 1 vs testing long vs testing error vs isset 1 vs isset long vs isset error

Created: 7 years ago by: Guest

Jump to the latest result

testin 1

testing long

testing error

isset 1

isset long

isset error

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):