Run results for: For meseuerement

Test name	Executions per second
✓ For of	5,710,363 Ops/sec
For In	1,020,304 Ops/sec
for	677,276 Ops/sec
forEach	257,629 Ops/sec

Script Preparation code:

let data = [
    [
        1731416366378,
        3
    ],
    [
        1731416400000,
        3
    ],
    [
        1731416546584,
        3
    ],
    [
        1731416734567,
        1
    ],
    [
        1731416915539,
        1
    ],
    [
        1731417103129,
        1
    ],
    [
        1731417283810,
        1
    ],
    [
        1731417465766,
        3
    ],
    [
        1731417644518,
        3
    ],
    [
        1731417828571,
        0
    ],
    [
        1731418008276,
        0
    ],
    [
        1731418195886,
        0
    ],
    [
        1731418399363,
        0
    ],
    [
        1731418592505,
        0
    ],
    [
        1731418771085,
        0
    ],

    [
        1731416366378,
        3
    ],
    [
        1731416400000,
        3
    ],
    [
        1731416546584,
        3
    ],
    [
        1731416734567,
        1
    ],
    [
        1731416915539,
        1
    ],
    [
        1731417103129,
        1
    ],
    [
        1731417283810,
        1
    ],
    [
        1731417465766,
        3
    ],
    [
        1731417644518,
        3
    ],
    [
        1731417828571,
        0
    ],
    [
        1731418008276,
        0
    ],
    [
        1731418195886,
        0
    ],
    [
        1731418399363,
        0
    ],
    [
        1731418592505,
        0
    ],
    [
        1731418771085,
        0
    ],
    [
        1731418962461,
        0
    ],
    [
        1731419159333,
        4
    ],
    [
        1731419341648,
        4
    ],
    [
        1731419521583,
        0
    ],
    [
        1731419702032,
        0
    ],
    [
        1731419886050,
        0
    ],
    [
        1731420068947,
        0
    ],
    [
        1731420270874,
        3
    ],
    [
        1731420475599,
        3
    ],
    [
        1731420698605,
        3
    ],
    [
        1731420884749,
        3
    ],
    [
        1731421063997,
        3
    ],
    [
        1731421286506,
        3
    ],
    [
        1731421486691,
        3
    ],
    [
        1731421709849,
        3
    ],
    [
        1731421926377,
        3
    ],
    [
        1731422158517,
        3
    ],
    [
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        3
    ],
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        1731422586810,
        3
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        1731422801770,
        3
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        3
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        3
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        3
    ],
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        1731423579395,
        3
    ],
    [
        1731423772915,
        3
    ],
    [
        1731423961422,
        3
    ],
    [
        1731424137407,
        3
    ],
    [
        1731424317518,
        3
    ],
    [
        1731424499838,
        3
    ],
    [
        1731424688200,
        3
    ],
    [
        1731424866749,
        3
    ],
    [
        1731425063896,
        3
    ],
    [
        1731425246643,
        3
    ],
    [
        1731425426094,
        2
    ],
    [
        1731425614740,
        2
    ],
    [
        1731425802064,
        2
    ],
    [
        1731425982614,
        2
    ],
    [
        1731426161980,
        2
    ],
    [
        1731426342528,
        3
    ],
    [
        1731426522163,
        3
    ],
    [
        1731426704198,
        2
    ],
    [
        1731426885779,
        2
    ],
    [
        1731427064012,
        2
    ],
    [
        1731427243469,
        2
    ],
    [
        1731427424704,
        2
    ],
    [
        1731427606431,
        2
    ],
    [
        1731427788341,
        3
    ],
    [
        1731427976305,
        3
    ],
    [
        1731428154194,
        3
    ],
    [
        1731428333770,
        3
    ],
    [
        1731428516483,
        3
    ],
    [
        1731428693636,
        3
    ],
    [
        1731428876329,
        3
    ],
    [
        1731429054588,
        3
    ],
    [
        1731429234320,
        3
    ],
    [
        1731429413846,
        3
    ],
    [
        1731429594286,
        3
    ],
    [
        1731429675516,
        3
    ]

]

Tests:

for
for (var i = 0; i < data.length; i++) { data[i]; }
forEach
data.forEach(function(i) { data[i]; });
For In
for (var i in data) { data[i]; }
For of with continue
let criticalityCount = {}; for (let [, criticality] of data) { if (criticality === 0) { continue; } if (criticality in criticalityCount) { criticalityCount[criticality]++; } else { criticalityCount[criticality] = 1; } }
For of with filter before
let filteredData = data.filter(([, criticality]) => criticality !== 0); let criticalityCount = {}; for (let [, criticality] of filteredData) { if (criticality in criticalityCount) { criticalityCount[criticality]++; } else { criticalityCount[criticality] = 1; } }

Run results for: For meseuerement

for

forEach

For In

For of with continue

For of with filter before