Benchmark: UmbrellaJS vs Cash 2

HTML Preparation code:

<script>/* Umbrella JS 3.3.0 umbrellajs.com */ var u=function(t,e){return this instanceof u?t instanceof u?t:((t="string"==typeof t?this.select(t,e):t)&&t.nodeName&&(t=[t]),void(this.nodes=this.slice(t))):new u(t,e)};u.prototype={get length(){return this.nodes.length}},u.prototype.nodes=[],u.prototype.addClass=function(){return this.eacharg(arguments,function(t,e){t.classList.add(e)})},u.prototype.adjacent=function(o,t,i){return"number"==typeof t&&(t=0===t?[]:new Array(t).join().split(",").map(Number.call,Number)),this.each(function(n,r){var e=document.createDocumentFragment();u(t||{}).map(function(t,e){e="function"==typeof o?o.call(this,t,e,n,r):o;return"string"==typeof e?this.generate(e):u(e)}).each(function(t){this.isInPage(t)?e.appendChild(u(t).clone().first()):e.appendChild(t)}),i.call(this,n,e)})},u.prototype.after=function(t,e){return this.adjacent(t,e,function(t,e){t.parentNode.insertBefore(e,t.nextSibling)})},u.prototype.append=function(t,e){return this.adjacent(t,e,function(t,e){t.appendChild(e)})},u.prototype.args=function(t,e,n){return(t="string"!=typeof(t="function"==typeof t?t(e,n):t)?this.slice(t).map(this.str(e,n)):t).toString().split(/[\s,]+/).filter(function(t){return t.length})},u.prototype.array=function(o){var i=this;return this.nodes.reduce(function(t,e,n){var r;return o?(r="string"==typeof(r=(r=o.call(i,e,n))||!1)?u(r):r)instanceof u&&(r=r.nodes):r=e.innerHTML,t.concat(!1!==r?r:[])},[])},u.prototype.attr=function(t,e,r){return r=r?"data-":"",this.pairs(t,e,function(t,e){return t.getAttribute(r+e)},function(t,e,n){n?t.setAttribute(r+e,n):t.removeAttribute(r+e)})},u.prototype.before=function(t,e){return this.adjacent(t,e,function(t,e){t.parentNode.insertBefore(e,t)})},u.prototype.children=function(t){return this.map(function(t){return this.slice(t.children)}).filter(t)},u.prototype.clone=function(){return this.map(function(t,e){var n=t.cloneNode(!0),r=this.getAll(n);return this.getAll(t).each(function(t,e){for(var n in this.mirror)this.mirror[n]&&this.mirror[n](t,r.nodes[e])}),n})},u.prototype.getAll=function(t){return u([t].concat(u("*",t).nodes))},u.prototype.mirror={},u.prototype.mirror.events=function(t,e){if(t._e)for(var n in t._e)t._e[n].forEach(function(t){u(e).on(n,t.callback)})},u.prototype.mirror.select=function(t,e){u(t).is("select")&&(e.value=t.value)},u.prototype.mirror.textarea=function(t,e){u(t).is("textarea")&&(e.value=t.value)},u.prototype.closest=function(e){return this.map(function(t){do{if(u(t).is(e))return t}while((t=t.parentNode)&&t!==document)})},u.prototype.data=function(t,e){return this.attr(t,e,!0)},u.prototype.each=function(t){return this.nodes.forEach(t.bind(this)),this},u.prototype.eacharg=function(n,r){return this.each(function(e,t){this.args(n,e,t).forEach(function(t){r.call(this,e,t)},this)})},u.prototype.empty=function(){return this.each(function(t){for(;t.firstChild;)t.removeChild(t.firstChild)})},u.prototype.filter=function(e){var t=e instanceof u?function(t){return-1!==e.nodes.indexOf(t)}:"function"==typeof e?e:function(t){return t.matches=t.matches||t.msMatchesSelector||t.webkitMatchesSelector,t.matches(e||"*")};return u(this.nodes.filter(t))},u.prototype.find=function(e){return this.map(function(t){return u(e||"*",t)})},u.prototype.first=function(){return this.nodes[0]||!1},u.prototype.generate=function(t){return/^\s*<tr[> ]/.test(t)?u(document.createElement("table")).html(t).children().children().nodes:/^\s*<t(h|d)[> ]/.test(t)?u(document.createElement("table")).html(t).children().children().children().nodes:/^\s*</.test(t)?u(document.createElement("div")).html(t).children().nodes:document.createTextNode(t)},u.prototype.handle=function(){var t=this.slice(arguments).map(function(e){return"function"==typeof e?function(t){t.preventDefault(),e.apply(this,arguments)}:e},this);return this.on.apply(this,t)},u.prototype.hasClass=function(){return this.is("."+this.args(arguments).join("."))},u.prototype.html=function(e){return void 0===e?this.first().innerHTML||"":this.each(function(t){t.innerHTML=e})},u.prototype.is=function(t){return 0<this.filter(t).length},u.prototype.isInPage=function(t){return t!==document.body&&document.body.contains(t)},u.prototype.last=function(){return this.nodes[this.length-1]||!1},u.prototype.map=function(t){return t?u(this.array(t)).unique():this},u.prototype.not=function(e){return this.filter(function(t){return!u(t).is(e||!0)})},u.prototype.off=function(t,e,n){var r=null==e&&null==n,o=null,i=e;return"string"==typeof e&&(o=e,i=n),this.eacharg(t,function(e,n){u(e._e?e._e[n]:[]).each(function(t){(r||t.orig_callback===i&&t.selector===o)&&e.removeEventListener(n,t.callback)})})},u.prototype.on=function(t,e,o){function i(t,e){try{Object.defineProperty(t,"currentTarget",{value:e,configurable:!0})}catch(t){}}var c=null,n=e;"string"==typeof e&&(c=e,n=o,e=function(n){var r=arguments;u(n.currentTarget).find(c).each(function(t){var e;t.contains(n.target)&&(e=n.currentTarget,i(n,t),o.apply(t,r),i(n,e))})});function r(t){return e.apply(this,[t].concat(t.detail||[]))}return this.eacharg(t,function(t,e){t.addEventListener(e,r),t._e=t._e||{},t._e[e]=t._e[e]||[],t._e[e].push({callback:r,orig_callback:n,selector:c})})},u.prototype.pairs=function(r,t,e,o){var n;return void 0!==t&&(n=r,(r={})[n]=t),"object"==typeof r?this.each(function(t,e){for(var n in r)"function"==typeof r[n]?o(t,n,r[n](t,e)):o(t,n,r[n])}):this.length?e(this.first(),r):""},u.prototype.param=function(e){return Object.keys(e).map(function(t){return this.uri(t)+"="+this.uri(e[t])}.bind(this)).join("&")},u.prototype.parent=function(t){return this.map(function(t){return t.parentNode}).filter(t)},u.prototype.prepend=function(t,e){return this.adjacent(t,e,function(t,e){t.insertBefore(e,t.firstChild)})},u.prototype.remove=function(){return this.each(function(t){t.parentNode&&t.parentNode.removeChild(t)})},u.prototype.removeClass=function(){return this.eacharg(arguments,function(t,e){t.classList.remove(e)})},u.prototype.replace=function(t,e){var n=[];return this.adjacent(t,e,function(t,e){n=n.concat(this.slice(e.children)),t.parentNode.replaceChild(e,t)}),u(n)},u.prototype.scroll=function(){return this.first().scrollIntoView({behavior:"smooth"}),this},u.prototype.select=function(t,e){return t=t.replace(/^\s*/,"").replace(/\s*$/,""),/^</.test(t)?u().generate(t):(e||document).querySelectorAll(t)},u.prototype.serialize=function(){var r=this;return this.slice(this.first().elements).reduce(function(e,n){return!n.name||n.disabled||"file"===n.type||/(checkbox|radio)/.test(n.type)&&!n.checked?e:"select-multiple"===n.type?(u(n.options).each(function(t){t.selected&&(e+="&"+r.uri(n.name)+"="+r.uri(t.value))}),e):e+"&"+r.uri(n.name)+"="+r.uri(n.value)},"").slice(1)},u.prototype.siblings=function(t){return this.parent().children(t).not(this)},u.prototype.size=function(){return this.first().getBoundingClientRect()},u.prototype.slice=function(t){return t&&0!==t.length&&"string"!=typeof t&&"[object Function]"!==t.toString()?t.length?[].slice.call(t.nodes||t):[t]:[]},u.prototype.str=function(e,n){return function(t){return"function"==typeof t?t.call(this,e,n):t.toString()}},u.prototype.text=function(e){return void 0===e?this.first().textContent||"":this.each(function(t){t.textContent=e})},u.prototype.toggleClass=function(t,e){return!!e===e?this[e?"addClass":"removeClass"](t):this.eacharg(t,function(t,e){t.classList.toggle(e)})},u.prototype.trigger=function(t){var o=this.slice(arguments).slice(1);return this.eacharg(t,function(t,e){var n,r={bubbles:!0,cancelable:!0,detail:o};try{n=new window.CustomEvent(e,r)}catch(t){(n=document.createEvent("CustomEvent")).initCustomEvent(e,!0,!0,o)}t.dispatchEvent(n)})},u.prototype.unique=function(){return u(this.nodes.reduce(function(t,e){return null!=e&&!1!==e&&-1===t.indexOf(e)?t.concat(e):t},[]))},u.prototype.uri=function(t){return encodeURIComponent(t).replace(/!/g,"%21").replace(/'/g,"%27").replace(/\(/g,"%28").replace(/\)/g,"%29").replace(/\*/g,"%2A").replace(/%20/g,"+")},u.prototype.wrap=function(t){return this.map(function(e){return u(t).each(function(t){!function(t){for(;t.firstElementChild;)t=t.firstElementChild;return u(t)}(t).append(e.cloneNode(!0)),e.parentNode.replaceChild(t,e)})})},"object"==typeof module&&module.exports&&(module.exports=u,module.exports.u=u);</script>
<script src="https://kenwheeler.github.io/cash/cash.min.js"></script>
<div id="test">Test</div>

Tests:

Umbrella Selector
var test = u("#test")
Cash Selector
var test = $("#test")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Umbrella Selector
Cash Selector

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Based on the provided code snippet and benchmark data, I'll attempt to provide an answer.

The code snippet appears to be a JavaScript implementation of a CSS selector library, with `u` being the main function. It seems to be comparing the performance of two different selector libraries: `cash` (the code snippet) and `$(selector)` (the test case).

The benchmark data shows the execution speed of both selectors on a Chrome 110 browser running on Linux. The results indicate that:

* Cash selector is significantly faster than Umbrella selector.
* Executions per second for Cash selector are approximately 2296171.75, while for Umbrella selector they are around 438585.28125.

Given the performance difference, it's likely that the code snippet and its implementation of `u` have a bug or an optimization issue that contributes to the slower performance. Alternatively, the cash library might be more optimized or efficient in this specific use case.

To provide a more detailed answer, I would need more information about the code, such as:

* The exact implementation of the `u` function and how it handles different selector types.
* Any optimizations or bug fixes that could improve performance.
* A thorough understanding of the requirements and constraints of the project.

However, based on the provided data, it's clear that the cash selector library outperforms the Umbrella selector in this specific test case.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36

Browser/OS: Chrome 110 on Linux

View result in a separate tab

Test name	Executions per second
Umbrella Selector	438585.3 Ops/sec
Cash Selector	2296171.8 Ops/sec

Related benchmarks:

UmbrellaJS vs Cash 2 (version: 0)

Comparing performance of: Umbrella Selector vs Cash Selector

Created: 2 years ago by: Guest

Jump to the latest result

Umbrella Selector

Cash Selector

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):