Benchmark: pick by substring key and concatenate

Tests:

substring & array result
const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'} const result = [] const key='key1 variant' for (let i = 0; i <= key?.length; i++) { if (key[i] === ' ' || i === key.length) { const current = key.substring(0, i) if (object[current]) { result.push(object[current]) } } } const final = result.join(' ')
string builder & array result
const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'} const result = [] const key='key1 variant' let current = '' for (let i = 0; i <= key?.length; i++) { current += key[i] if (key[i] === ' ' || i === key.length) { if (object[current]) { result.push(object[current]) } } } const final = result.join(' ')
substring & string result
const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'} let result = '' const key='key1 variant' for (let i = 0; i <= key?.length; i++) { if (key[i] === ' ' || i === key.length) { const current = key.substring(0, i) if (object[current]) { result += ' ' + object[current] } } }
string builder & string result
const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'} let result = '' const key='key1 variant' let current = '' for (let i = 0; i <= key?.length; i++) { current += key[i] if (key[i] === ' ' || i === key.length) { if (object[current]) { result += ' ' + object[current] } } }
substring & string result using concatenate
const object = {'key1': 'value1', 'key2': 'value2', 'key1 variant': 'value1 variant'} let result = '' const key='key1 variant' for (let i = 0; i <= key?.length; i++) { if (key[i] === ' ' || i === key.length) { const current = key.substring(0, i) if (object[current]) { result = result.concat(' ', object[current]) } } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
substring & array result
string builder & array result
substring & string result
string builder & string result
substring & string result using concatenate

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks.

**Benchmark Definition**

The provided JSON represents a benchmark definition, which is a crucial part of measuring the performance of different approaches in executing a specific piece of code. In this case, the benchmark definition specifies that we need to test four different approaches for concatenating or building strings based on a given key from an object:

1. `substring & array result`
2. `string builder & array result`
3. `substring & string result`
4. `string builder & string result using concatenate`

**Approaches Compared**

The benchmark compares the performance of four different approaches for concatenating or building strings based on a given key from an object:

1. **`substring & array result`**: This approach uses a traditional `for` loop to iterate over each character in the key and checks if the corresponding value exists in the object. The values are then stored in an array.
2. **`string builder & array result`**: Similar to the previous approach, but instead of storing the values in an array, they are built into a string.
3. **`substring & string result`**: This approach uses `substring` method to extract parts of the key and checks if the corresponding value exists in the object. The results are concatenated into a single string.
4. **`string builder & string result using concatenate`**: Similar to the previous approach, but instead of concatenating strings, it uses the `concat` method to build the string.

**Pros and Cons of Each Approach**

Here's a brief summary of the pros and cons of each approach:

1. **`substring & array result`**
	* Pros: Efficient use of memory, easy to implement.
	* Cons: May not be as efficient for large keys or values, can lead to array pollution.
2. **`string builder & array result`**
	* Pros: More memory-efficient than concatenating strings, can be more efficient for large keys or values.
	* Cons: Requires manual string building, may be harder to implement correctly.
3. **`substring & string result`**
	* Pros: Easy to implement, straightforward approach.
	* Cons: May not be as efficient as other approaches, can lead to repeated substring operations.
4. **`string builder & string result using concatenate`**
	* Pros: Similar performance characteristics to `string builder & array result`, easy to implement.
	* Cons: Uses `concat` method, which can be slower than traditional concatenation.

**Library Used**

There is no explicit library mentioned in the benchmark definition or execution results. However, it's likely that the benchmark uses a built-in JavaScript function or method for substring and string manipulation.

**Device Platform and Operating System**

The benchmark execution results show that all four approaches are executed on a Desktop device running Linux, with Chrome 123 as the browser. This suggests that the benchmark is optimized for desktop environments using modern web browsers.

I hope this answers your questions!

Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Linux

View result in a separate tab

Test name	Executions per second
substring & array result	4674656.5 Ops/sec
string builder & array result	3601896.5 Ops/sec
substring & string result	7538035.0 Ops/sec
string builder & string result	3834725.8 Ops/sec
substring & string result using concatenate	6560102.0 Ops/sec

Related benchmarks:

pick by substring key and concatenate (version: 0)

Comparing performance of: substring & array result vs string builder & array result vs substring & string result vs string builder & string result vs substring & string result using concatenate

Created: 6 months ago by: Guest

Jump to the latest result

substring & array result

string builder & array result

substring & string result

string builder & string result

substring & string result using concatenate

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):