Benchmark: Test Immutable ToJS vs single get

HTML Preparation code:

<script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.min.js'></script>

Script Preparation code:

var testObj = {
  item1: '1234',
  item2: '1234',
  item3: '1234',
  item4: '1234',
  item5: '1234',
  item6: '1234',
  item7: '1234',
  item8: '1234',
  item9: '1234',
  item10: '1234',
  item11: '1234',
  item12: '1234',
  item13: '1234',
  item14: '1234',
  item15: '1234',
  item16: '1234',
  item17: '1234',
  item18: '1234',
  item19: '1234',
  item20: '1234',
  item21: '1234',
  item22: '1234',
  item23: '1234',
};

var testImmutable = Immutable.fromJS(testObj);

Tests:

Immutable toJS
var result = testImmutable.toJS();
Immutable get
var testObj = { item1: testImmutable.get('item1'), };

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Immutable toJS
Immutable get

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmarking test cases and explain what is being tested.

**Overview**

The test case compares two approaches for interacting with an Immutable.js object: using the `toJS()` method to convert it to a plain JavaScript object, and using the `get()` method to access specific properties directly on the Immutable object.

**Immutable.js Library**

The Immutable.js library is a functional programming library for JavaScript that provides data structures such as Maps, Sets, lists (sequences), tuples (pairs), and more. Its primary goal is to provide a safer alternative to traditional mutable objects like arrays or objects, by ensuring that data is immutable and predictable.

**`toJS()` Method**

The `toJS()` method converts an Immutable object to a plain JavaScript object. This approach is useful when you need to perform operations on the resulting object as if it were a native JavaScript object. However:

*   **Pros**: Provides a way to interact with the data in a more familiar JavaScript context.
*   **Cons**: Can be slower and less efficient than using Immutable methods directly, since it involves creating an additional copy of the data.

**`get()` Method**

The `get()` method returns the value of a specific key or index within an Immutable object. This approach is useful when you need to access specific parts of the data without having to iterate over the entire collection. However:

*   **Pros**: Can be faster and more efficient than using `toJS()`, since it directly accesses the underlying data structure.
*   **Cons**: May not provide the same level of safety and predictability as using Immutable methods, since you're working directly with the underlying data.

**Other Considerations**

When choosing between these approaches, consider the following:

*   **Performance**: If speed is critical, `get()` might be a better choice. However, if you need to perform complex operations on the resulting data, `toJS()` might be more suitable.
*   **Safety and Predictability**: Using Immutable methods like `get()` ensures that your code is safer and more predictable, since it avoids mutable state. However, this may come at a cost in terms of performance.

**Example Code**

Here's an example of how you could modify the original test case to include additional benchmarking:

```javascript
// Define two functions for testing
function getTest() {
    const result = testImmutable.get('item1');
    return result;
}

function toJSTest() {
    var result = testImmutable.toJS();
    // Perform operations on result as if it were a native JavaScript object
    console.log(result.item1);
}

// Create an Immutable object
var testImmutable = Immutable.fromJS(testObj);

// Define the benchmarking test cases
var benchmarks = [
    {
        "Benchmark Definition": "getTest();",
        "Test Name": "Immutable get"
    },
    {
        "Benchmark Definition": "toJSTest();",
        "Test Name": "Immutable toJS"
    }
];

// Run the benchmarking tests
benchmarks.forEach(function(benchmark) {
    // Comment out or uncomment as needed based on desired test output.
    // console.log(`Running ${benchmark.TestName}...`);
});
```

**Alternatives**

Other alternatives for interacting with Immutable.js objects include:

*   **`map()`**: Similar to `get()`, but applies a function to each element in the collection.
*   **`filter()`**: Applies a predicate function to each element in the collection, returning a new collection containing only elements that pass the test.
*   **`reduce()`**: Accumulates values from the collection using a callback function.

These methods provide additional ways to interact with Immutable objects and can be useful depending on your specific use case.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Android 10; Mobile; rv:68.0) Gecko/68.0 Firefox/68.0

Browser/OS: Firefox Mobile 68 on Android

View result in a separate tab

Test name	Executions per second
Immutable toJS	246044.2 Ops/sec
Immutable get	11454698.0 Ops/sec

Related benchmarks:

Test Immutable ToJS vs single get (version: 0)

Comparing performance of: Immutable toJS vs Immutable get

Created: 6 years ago by: Guest

Jump to the latest result

Immutable toJS

Immutable get

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):