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(version: 0)
Comparing performance of:
index loop vs For..of vs Foreach
Created:
4 years ago
by:
Guest
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Script Preparation code:
var preload = { "content_ids": [ "HF-C291-B456-L8848" ], "oilib_version": "21.05.26", "map_key": "AIzaSyCJ3Yq45vJL9Mh6hCcj28QnUWmKOiyDtmM", "oilib_path": "http://localhost:12000/assets/js/", "map_styles": [ { "stylers": [ { "visibility": "simplified" } ] }, { "stylers": [ { "color": "#d8d2b8" }, { "lightness": 85 } ], "elementType": "geometry.fill" }, { "stylers": [ { "color": "#002950" } ], "elementType": "labels" }, { "stylers": [ { "color": "#002950" }, { "visibility": "on" } ], "elementType": "labels.text.fill" }, { "stylers": [ { "color": "#feffff" }, { "visibility": "on" }, { "weight": 2 } ], "elementType": "labels.text.stroke" }, { "featureType": "administrative", "elementType": "geometry", "stylers": [ { "visibility": "off" } ] }, { "featureType": "administrative.land_parcel", "stylers": [ { "visibility": "off" } ] }, { "featureType": "administrative.neighborhood", "stylers": [ { "visibility": "off" } ] }, { "featureType": "poi", "stylers": [ { "visibility": "off" } ] }, { "featureType": "poi", "elementType": "labels.text", "stylers": [ { "visibility": "off" } ] }, { "featureType": "road", "elementType": "labels", "stylers": [ { "visibility": "off" } ] }, { "featureType": "road", "elementType": "labels.icon", "stylers": [ { "visibility": "off" } ] }, { "featureType": "road.arterial", "elementType": "geometry.fill", "stylers": [ { "color": "#d8d2b8" } ] }, { "featureType": "road.arterial", "elementType": "labels", "stylers": [ { "visibility": "simplified" } ] }, { "featureType": "road.arterial", "elementType": "labels.icon", "stylers": [ { "visibility": "off" } ] }, { "featureType": "road.arterial", "elementType": "labels.text", "stylers": [ { "visibility": "on" } ] }, { "featureType": "road.highway", "elementType": "geometry.fill", "stylers": [ { "color": "#6f706f" }, { "lightness": 55 }, { "weight": 2 } ] }, { "featureType": "road.highway", "elementType": "labels", "stylers": [ { "visibility": "off" } ] }, { "featureType": "road.local", "stylers": [ { "visibility": "on" } ] }, { "featureType": "road.local", "elementType": "geometry", "stylers": [ { "visibility": "on" } ] }, { "featureType": "road.local", "elementType": "geometry.fill", "stylers": [ { "color": "#b6b29c" }, { "visibility": "on" }, { "weight": 1 } ] }, { "featureType": "road.local", "elementType": "labels.icon", "stylers": [ { "visibility": "off" } ] }, { "featureType": "road.local", "elementType": "labels.text", "stylers": [ { "visibility": "on" } ] }, { "featureType": "transit", "stylers": [ { "visibility": "off" } ] }, { "featureType": "water", "elementType": "geometry.fill", "stylers": [ { "color": "#3e8c98" }, { "lightness": 55 } ] }, { "featureType": "water", "elementType": "labels.text", "stylers": [ { "visibility": "off" } ] } ], "hfsid": 107, "debug": true }; var that={}
Tests:
index loop
for (let i = 0; i < Object.entries(preload).length; i++){ const keyVal = Object.entries(preload)[i] that[keyVal[0]] = keyVal[1] }
For..of
for (const keyVal of Object.entries(preload)) { that[keyVal[0]] = keyVal[1] }
Foreach
Object.entries(preload).forEach((keyVal) => { that[keyVal[0]] = keyVal[1] })
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
index loop
For..of
Foreach
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll provide the solution to the problem. The provided code snippet appears to be a JSON object containing various properties related to Google Maps styling. The goal is to iterate over the `preload` object and assign its values to a new object called `that`. To solve this problem, we can use any of the three benchmarking methods: `For...of`, `Foreach`, or a traditional `for` loop with an index. Here's a code snippet that uses all three methods: ```javascript const preload = { // ... (JSON object contents) }; let that; // For..of method Object.entries(preload).forEach((keyVal) => { that[keyVal[0]] = keyVal[1]; }); // Foreach method for (const keyVal of Object.entries(preload)) { that[keyVal[0]] = keyVal[1]; } // Traditional for loop with index let i = 0; while (i < Object.keys(preload).length) { const keyVal = Object.entries(preload)[i]; that[keyVal[0]] = keyVal[1]; i++; } ``` For the benchmarking test cases, we can use the following: ```javascript var that={}; for (let i = 0; i < Object.keys(preload).length; i++) { const keyVal = Object.entries(preload)[i]; that[keyVal[0]] = keyVal[1]; } // For..of method const resultForOf = []; Object.entries(preload).forEach((keyVal) => { resultForOf.push({ RawUAString: "", Browser: "", DevicePlatform: "", OperatingSystem: "", ExecutionsPerSecond: 0, TestName: "" }); }); resultForOf.forEach((_, index) => { that[Object.keys(preload)[index]] = preload[Object.keys(preload)[index]]; }); // Foreach method const resultForeach = []; for (const keyVal of Object.entries(preload)) { const { RawUAString, Browser, DevicePlatform, OperatingSystem, ExecutionsPerSecond, TestName } = { RawUAString: "", Browser: "", DevicePlatform: "", OperatingSystem: "", ExecutionsPerSecond: 0, TestName: "" }; resultForeach.push({ RawUAString, Browser, DevicePlatform, OperatingSystem, ExecutionsPerSecond, TestName }); } resultForeach.forEach((_, index) => { that[Object.keys(preload)[index]] = preload[Object.keys(preload)[index]]; }); ``` Finally, we can run the benchmarking tests using a tool like Benchmark.js or simply by executing the code in a browser console. The output will show the results for each benchmarking method, including the number of executions per second and other relevant metrics.
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