Benchmark: Instly: String concat

Script Preparation code:

var gallery = 0;

Tests:

String Concat
var test = "<div class='embed-wrapper'><div class='embed-color-pill cat-"+gallery+"'></div><div class='embed'><table><tr><td colspan='2'><div><a class='embed-provider linkIgnore' href='https://exhentai.org/' target='_blank' rel='noreferrer'>ExHentai</a></div><div><a class='embed-title linkIgnore' href='https://exhentai.org/g/"+gallery+"/"+gallery+"/' target='_blank' rel='noreferrer'>"+gallery+"</a>"+(gallery ? " <span class='custom_warning'>(Expunged)</span>": "")+"</div></td></tr><tr><td><div><img class='image gallery_preview' src='"+gallery+"'></div></td><td><table class='gallery_info'><tr><td>Category:</td><td class='desc cat-"+gallery+"'>"+gallery+"</td></tr><tr><td>Rating:</td><td class='desc'>"+gallery+"</td></tr><tr><td>Images:</td><td class='desc'>"+gallery+"</td></tr><tr><td>Uploaded:</td><td class='desc'>"+new Date(gallery*1000).toLocaleString("en-GB")+"</td></tr><tr><td>Tags:</td><td class='tags'>"+gallery+"</td></tr><tr><td>Size:</td><td class='desc'>"+gallery+"</td></tr><tr><td>Torrent:</td><td class='desc'><a class='linkIgnore' href='https://exhentai.org/gallerytorrents.php?gid="+gallery+"&t="+gallery+"' target='_blank' rel='noreferrer'>Search</a></td></tr></table></td></tr></table></div></div>"
Template Literals
var test = `<div class='embed-wrapper'><div class='embed-color-pill cat-${gallery}'></div><div class='embed'><table><tr><td colspan='2'><div><a class='embed-provider linkIgnore' href='https://exhentai.org/' target='_blank' rel='noreferrer'>ExHentai</a></div><div><a class='embed-title linkIgnore' href='https://exhentai.org/g/${gallery}/${gallery}/' target='_blank' rel='noreferrer'>${gallery}</a>"+(gallery ? " <span class='custom_warning'>(Expunged)</span>": "")+"</div></td></tr><tr><td><div><img class='image gallery_preview' src='${gallery}'></div></td><td><table class='gallery_info'><tr><td>Category:</td><td class='desc cat-${gallery}'>${gallery}</td></tr><tr><td>Rating:</td><td class='desc'>${gallery}</td></tr><tr><td>Images:</td><td class='desc'>${gallery}</td></tr><tr><td>Uploaded:</td><td class='desc'>"+new Date(gallery*1000).toLocaleString("en-GB")+"</td></tr><tr><td>Tags:</td><td class='tags'>"+gallery+"</td></tr><tr><td>Size:</td><td class='desc'>"+gallery+"</td></tr><tr><td>Torrent:</td><td class='desc'><a class='linkIgnore' href='https://exhentai.org/gallerytorrents.php?gid=${gallery}&t=${gallery}' target='_blank' rel='noreferrer'>Search</a></td></tr></table></td></tr></table></div></div>`

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
String Concat
Template Literals

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.135 Safari/537.36

Browser/OS: Chrome 84 on Mac OS X 10.15.6

View result in a separate tab

Test name	Executions per second
String Concat	5993.1 Ops/sec
Template Literals	1094765.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition and test cases to explain what's being tested, compared, and their pros and cons.

**Benchmark Definition**

The benchmark definition is a JSON object that defines two microbenchmarks:

1. "Instly: String concat"
2. "Template Literals"

Both benchmarks involve string concatenation or templating, but with different approaches.

**"Instly: String Concat" Benchmark**

This benchmark uses the following script preparation code:
```javascript
var gallery = 0;
```
The benchmark definition itself is a simple JavaScript expression that concatenates strings using the `+` operator:
```javascript
var test = "..."; // long string literal containing HTML and variables
```
**Pros:**

* Simple and straightforward implementation
* Easy to understand and maintain

**Cons:**

* Uses the old-fashioned `+` operator for string concatenation, which can be slow
* May not work well with large strings or complex expressions

**"Template Literals" Benchmark**

This benchmark uses a template literal syntax introduced in ECMAScript 2015:
```javascript
var test = `<div class='embed-wrapper'><div class='embed-color-pill cat-${gallery}'></div><div class='embed'><table><tr><td colspan='2'><div><a class='embed-provider linkIgnore' href='https://exhentai.org/' target='_blank' rel='noreferrer'>ExHentai</a></div><div><a class='embed-title linkIgnore' href='https://exhentai.org/g/${gallery}/${gallery}/' target='_blank' rel='noreferrer'>${gallery}</a>\"+(gallery ? \" <span class='custom_warning'>(Expunged)</span>\": \"\")+\"</div></td></tr><tr><td><div><img class='image gallery_preview' src='${gallery}'></div></td><td><table class='gallery_info'><tr><td>Category:</td><td class='desc cat-${gallery}'>${gallery}</td></tr><tr><td>Rating:</td><td class='desc'>${gallery}</td></tr><tr><td>Images:</td><td class='desc'>${gallery}</td></tr><tr><td>Uploaded:</td><td class='desc'>\"+new Date(gallery*1000).toLocaleString(\"en-GB\")+\"</td></tr><tr><td>Tags:</td><td class='tags'>\"+gallery+\"</td></tr><tr><td>Size:</td><td class='desc'>\"+gallery+\"</td></tr><tr><td>Torrent:</td><td class='desc'><a class='linkIgnore' href='https://exhentai.org/gallerytorrents.php?gid=${gallery}&t=${gallery}' target='_blank' rel='noreferrer'>Search</a></td></tr></table></td></tr></table></div></div>`;
```
**Pros:**

* Uses a more modern and efficient syntax for string concatenation
* Can handle large strings and complex expressions without performance issues

**Cons:**

* Requires ECMAScript 2015 or later to run
* May be less familiar to some developers due to its non-standard syntax

**Comparison**

The two benchmarks compare the performance of using traditional string concatenation (`+` operator) versus template literals (introduced in ECMAScript 2015). The benchmark results show that template literals outperform traditional string concatenation.

**Other Alternatives**

If you prefer not to use template literals, other alternatives for efficient string concatenation include:

* Using the `String.prototype.format()` method or `lodash.escape()`
* Utilizing a library like underscore.js or moment.js
* Employing lazy loading or caching techniques

Keep in mind that the choice of implementation ultimately depends on your specific requirements, team familiarity, and performance constraints.

Related benchmarks:

Instly: String concat (version: 0)

Comparing performance of: String Concat vs Template Literals

Created: 6 years ago by: Registered User

Jump to the latest result

String Concat

Template Literals

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):