Benchmark: template string vs json stringify array vs json stringify object

Tests:

template string
const a = 'LET IT'; const b = ' SNOW'; `${a}${b}`
JSON.stringify array
const a = 'LET IT'; const b = ' SNOW'; JSON.stringify([a,b]);
JSON.stringify object
const a = 'LET IT'; const b = ' SNOW'; JSON.stringify({a,b});

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
template string
JSON.stringify array
JSON.stringify object

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 5 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
template string	171979248.0 Ops/sec
JSON.stringify array	15851918.0 Ops/sec
JSON.stringify object	13303310.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what is being tested, compared, and analyzed in the benchmark.

**Benchmark Definition**

The benchmark definition is a JSON object that describes the test case. In this case, there are three test cases:

1. **Template String**: The first test case uses template strings to concatenate two string literals: "LET IT" and " SNOW". The `${a}${b}` syntax is used to insert the values of `a` and `b` into a new string.
2. **JSON.stringify array**: The second test case uses the `JSON.stringify()` method to convert an array containing two string literals (`a` and `b`) into a JSON string.
3. **JSON.stringify object**: The third test case uses the `JSON.stringify()` method to convert an object with two properties (`a` and `b`) into a JSON string.

**Comparison**

The benchmark is comparing the performance of these three approaches:

* Template strings
* Converting an array to a JSON string using `JSON.stringify()`
* Converting an object to a JSON string using `JSON.stringify()`

**Pros and Cons**

Here's a brief analysis of each approach:

1. **Template Strings**: This approach is efficient because it avoids the overhead of creating a new JSON string. However, it may not be as readable or maintainable for complex expressions.
2. **Converting Array to JSON String**: Using `JSON.stringify()` on an array can lead to slower performance because JavaScript needs to serialize each element in the array, which can result in more characters being written to the DOM.
3. **Converting Object to JSON String**: Similarly, using `JSON.stringify()` on an object can also lead to slower performance because it needs to serialize each property-value pair.

**Library and Purpose**

There are no external libraries used in this benchmark besides the built-in `JSON` object.

**Special JavaScript Feature or Syntax**

The template string syntax (`${a}${b}`) is a modern JavaScript feature introduced in ECMAScript 2015 (ES6). It allows for more concise and expressive string concatenation. Other than that, no special features or syntax are used in this benchmark.

**Other Alternatives**

If you need to concatenate strings in a similar way to template strings, you can use the `+` operator or other string formatting methods like **strings.format()** (available in some older JavaScript engines).

However, for more complex expressions or when you want a more readable and maintainable syntax, consider using libraries like [lodash](https://www.lodash.com/) or [string-punctuation](https://github.com/sindresorhus/string-punctuation), which provide alternative string concatenation methods.

**Benchmark Result Interpretation**

The benchmark result shows the execution rate (ExecutionsPerSecond) for each test case. In this case, the template string approach is the fastest, followed by the object conversion to a JSON string. The array conversion to a JSON string is slower than both template strings and objects.

Keep in mind that these results may vary depending on your specific JavaScript engine, browser, or system configuration.

Related benchmarks:

template string vs json stringify array vs json stringify object (version: 0)

Comparing performance of: template string vs JSON.stringify array vs JSON.stringify object

Created: 3 years ago by: Guest

Jump to the latest result

template string

JSON.stringify array

JSON.stringify object

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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