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Run results for:
generate ranges
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<iframe src="https://measurethat.net/Embed?id=589029" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:135.0) Gecko/20100101 Firefox/135.0
Browser:
Firefox 135
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
array.from mapped fn
241746.8 Ops/sec
old impl
341066.7 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
/*your preparation JavaScript code goes here To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/ async function globalMeasureThatScriptPrepareFunction() { // This function is optional, feel free to remove it. // await someThing(); }
Tests:
array.from mapped fn
const generateChannelRanges = (startFrequency, channelWidth, count) => { return Array.from({ length: count }, (_, i) => { const start = startFrequency + i * channelWidth; return { start, end: start + channelWidth }; }); }; const channelRanges = { 320: [...generateChannelRanges(5945, 320, 3), ...generateChannelRanges(6105, 320, 3)].sort( (a, b) => a.start - b.start ), 240: generateChannelRanges(5490, 240, 1), 160: [ ...generateChannelRanges(5170, 160, 1), ...generateChannelRanges(5490, 160, 1), ...generateChannelRanges(5945, 160, 7), ], 80: [ ...generateChannelRanges(5170, 80, 2), ...generateChannelRanges(5490, 80, 3), ...generateChannelRanges(5735, 80, 1), ...generateChannelRanges(5945, 80, 14), ], 40: [ ...generateChannelRanges(2402, 40, 2), ...generateChannelRanges(5170, 40, 4), ...generateChannelRanges(5490, 40, 6), ...generateChannelRanges(5735, 40, 2), ...generateChannelRanges(5945, 40, 29), ], 20: [ ...generateChannelRanges(2402, 20, 4), ...generateChannelRanges(5170, 20, 8), ...generateChannelRanges(5490, 20, 12), ...generateChannelRanges(5735, 20, 5), ...generateChannelRanges(5925, 20, 60), ], };
old impl
const generateChannelRanges = (startFrequency, channelWidth, count) => { let frequency = startFrequency; const ranges = []; for (let i = 0; i < count; i++) { ranges.push({ start: frequency, end: frequency + channelWidth }); frequency += channelWidth; } return ranges; }; const channelRanges = { 320: [...generateChannelRanges(5945, 320, 3), ...generateChannelRanges(6105, 320, 3)].sort( (a, b) => a.start - b.start ), 240: generateChannelRanges(5490, 240, 1), 160: [ ...generateChannelRanges(5170, 160, 1), ...generateChannelRanges(5490, 160, 1), ...generateChannelRanges(5945, 160, 7), ], 80: [ ...generateChannelRanges(5170, 80, 2), ...generateChannelRanges(5490, 80, 3), ...generateChannelRanges(5735, 80, 1), ...generateChannelRanges(5945, 80, 14), ], 40: [ ...generateChannelRanges(2402, 40, 2), ...generateChannelRanges(5170, 40, 4), ...generateChannelRanges(5490, 40, 6), ...generateChannelRanges(5735, 40, 2), ...generateChannelRanges(5945, 40, 29), ], 20: [ ...generateChannelRanges(2402, 20, 4), ...generateChannelRanges(5170, 20, 8), ...generateChannelRanges(5490, 20, 12), ...generateChannelRanges(5735, 20, 5), ...generateChannelRanges(5925, 20, 60), ], };