-
-
Save Brantron/0198164014b46fc54f305e2bebb8a0f9 to your computer and use it in GitHub Desktop.
get last item / key / value in map #jsbench #jsperf (https://jsbench.github.io/#7992a793df12b1ee16beaef7a9863c68) #jsbench #jsperf
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>get last item / key / value in map #jsbench #jsperf</title> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script> | |
| <script src="./suite.js"></script> | |
| </head> | |
| <body> | |
| <h1>Open the console to view the results</h1> | |
| <h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2> | |
| </body> | |
| </html> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| "use strict"; | |
| (function (factory) { | |
| if (typeof Benchmark !== "undefined") { | |
| factory(Benchmark); | |
| } else { | |
| factory(require("benchmark")); | |
| } | |
| })(function (Benchmark) { | |
| var suite = new Benchmark.Suite; | |
| Benchmark.prototype.setup = function () { | |
| const map = new Map(); | |
| for (let i = 0; i < 100; i++) { | |
| map.set( | |
| "key_"+Math.random(), | |
| "value_"+Math.random() | |
| ); | |
| } | |
| const F1 = {}; | |
| F1.getLastItemInMap = map => Array.from(map)[map.size-1]; | |
| F1.getLastKeyInMap = map => Array.from(map)[map.size-1][0]; | |
| F1.getLastValueInMap = map => Array.from(map)[map.size-1][1]; | |
| const F2 = {}; | |
| F2.lastItemInMap = map => Array.from(map).pop(); | |
| F2.lastKeyInMap = map => Array.from(map.keys()).pop(); | |
| F2.lastValueInMap = map => Array.from(map.values()).pop(); | |
| const F3 = {}; | |
| F3.lastItemInMap = map => [...map].pop(); | |
| F3.lastKeyInMap = map => [...map.keys()].pop(); | |
| F3.lastValueInMap = map => [...map.values()].pop(); | |
| }; | |
| suite.add("F1.getLastItemInMap(map);", function () { | |
| F1.getLastItemInMap(map); | |
| }); | |
| suite.add("F1.getLastKeyInMap(map);", function () { | |
| F1.getLastKeyInMap(map); | |
| }); | |
| suite.add("F1.getLastValueInMap(map);", function () { | |
| F1.getLastValueInMap(map); | |
| }); | |
| suite.add("F2.lastItemInMap(map);", function () { | |
| F2.lastItemInMap(map); | |
| }); | |
| suite.add("F2.lastKeyInMap(map);", function () { | |
| F2.lastKeyInMap(map); | |
| }); | |
| suite.add("F2.lastValueInMap(map);", function () { | |
| F2.lastValueInMap(map); | |
| }); | |
| suite.add("F3.lastItemInMap(map);", function () { | |
| F3.lastItemInMap(map); | |
| }); | |
| suite.add("F3.lastKeyInMap(map);", function () { | |
| F3.lastKeyInMap(map); | |
| }); | |
| suite.add("F3.lastValueInMap(map);", function () { | |
| F3.lastValueInMap(map); | |
| }); | |
| suite.on("cycle", function (evt) { | |
| console.log(" - " + evt.target); | |
| }); | |
| suite.on("complete", function (evt) { | |
| console.log(new Array(30).join("-")); | |
| var results = evt.currentTarget.sort(function (a, b) { | |
| return b.hz - a.hz; | |
| }); | |
| results.forEach(function (item) { | |
| console.log((idx + 1) + ". " + item); | |
| }); | |
| }); | |
| console.log("get last item / key / value in map #jsbench #jsperf"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment