Benchmark: Array spread vs. push performance with large objects

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            ]
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        "field1": null
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];
Tests:
Array.prototype.push
arr.push({ "field31": "07-10-2020", "field12": "11:00 AM", "field13": null, "field14": null, "field15": null, "field16": 34, "field17": false, "field18": 5432, "field19": 5432, "field10": 321, "field123": 876, "field143": 2, "field13421": null, "field121": false, "field1fdsa": null, "field1fdsaa": { "field1d": 2, "fieldfds1": "feasdfesa" }, "field1dsa": { "fifdsaeld1": 123, "fiedld1": 765, "fieddvld1": null, "fiecld1": { "fieald1": "htesbfsgfds", "fcield1": "fdsafdsaf ", "fiesald1": 432 } }, "fiedfald1": { "fiecald1": 3, "field1": 6753253229, "fiecld1": { "fsaield1": "fdsafdsa", "fielgd1": "fdsafea", "fiedld1": 23432 } }, "fielt4d1": { "fiel2d1": 5423, "fiel24d1": 345, "field31": null, "fieldgfds1": true, "fiezcvld1": false, "fieagld1": null, "fiegfdsld1": null, "fiellkjd1": null, "fiehld1": null, "fiengftld1": null, "fieeld1": 0, "fiebvfld1": 138, "fiejukld1": 34, "feield1": null, "fiehguhkld1": 6.45, "fienld1": 14.72, "field1": 193.17, "fiefngld1": "fdsafdsafdsa", "fiefld1": "fdsafsfd", "fienbvld1": null, "fibveld1": null, "fiebnld1": [ { "figfeld1": "b&b", "fielgfdsd1": 3543, "fidseld1": 43, "fieldfd1": 235, "fievbvld1": 0, "fiebre4ld1": "", "fie2vld1": 64, "fievld1": { "fie1ld1": null, "fie3ld1": "05-01-2020", "fiel4d1": 2627508, "fiel5d1": 1673894, "fie6ld1": "gfdsgfds ", "fwield1": "bfdsbfds", "fi7yeld1": 0, "fieewld1": "", "fielsd1": null, "fierld1": null, "figfdseld1": "Male", "fievld1": 30, "fielgfdd1": false, "fielqgd1": false, "fireld1": 79, "fiesvld1": 69, "fiegeld1": null, "figeresld1": 105, "fiaevld1": null, "fiezvld1": false, "fiveqeld1": false, "fieeld1": 30, "fiveryeld1": 1673894, "fivegrewld1": 7081624 } }, { "figfeld1": "gfdsgfds", "fielgfdsd1": 1745612, "fidseld1": 3394264, "fieldfd1": 2638049, "fievbvld1": 0, "fiebre4ld1": "", "fie2vld1": 64, "fievld1": { "fie1ld1": null, "fie3ld1": "05-01-2020", "fiel4d1": 2638049, "fiel5d1": 1673894, "fie6ld1": "gfds", "fwield1": "gfdsgf", "fi7yeld1": 0, "fieewld1": "gfdsgfds", "fielsd1": null, "fierld1": null, "figfdseld1": "Female", "fievld1": 30, "fielgfdd1": false, "fielqgd1": false, "fireld1": 69, "fiesvld1": 69, "fiegeld1": null, "figeresld1": 45, "fiaevld1": null, "fiezvld1": false, "fiveqeld1": false, "fieeld1": 30, "fiveryeld1": 1, "fivegrewld1": 11 } } ] }, "field1": null });
Array.prototype.concat
arr.concat({ "field31": "07-10-2020", "field12": "11:00 AM", "field13": null, "field14": null, "field15": null, "field16": 34, "field17": false, "field18": 5432, "field19": 5432, "field10": 321, "field123": 876, "field143": 2, "field13421": null, "field121": false, "field1fdsa": null, "field1fdsaa": { "field1d": 2, "fieldfds1": "feasdfesa" }, "field1dsa": { "fifdsaeld1": 123, "fiedld1": 765, "fieddvld1": null, "fiecld1": { "fieald1": "htesbfsgfds", "fcield1": "fdsafdsaf ", "fiesald1": 432 } }, "fiedfald1": { "fiecald1": 3, "field1": 6753253229, "fiecld1": { "fsaield1": "fdsafdsa", "fielgd1": "fdsafea", "fiedld1": 23432 } }, "fielt4d1": { "fiel2d1": 5423, "fiel24d1": 345, "field31": null, "fieldgfds1": true, "fiezcvld1": false, "fieagld1": null, "fiegfdsld1": null, "fiellkjd1": null, "fiehld1": null, "fiengftld1": null, "fieeld1": 0, "fiebvfld1": 138, "fiejukld1": 34, "feield1": null, "fiehguhkld1": 6.45, "fienld1": 14.72, "field1": 193.17, "fiefngld1": "fdsafdsafdsa", "fiefld1": "fdsafsfd", "fienbvld1": null, "fibveld1": null, "fiebnld1": [ { "figfeld1": "b&b", "fielgfdsd1": 3543, "fidseld1": 43, "fieldfd1": 235, "fievbvld1": 0, "fiebre4ld1": "", "fie2vld1": 64, "fievld1": { "fie1ld1": null, "fie3ld1": "05-01-2020", "fiel4d1": 2627508, "fiel5d1": 1673894, "fie6ld1": "gfdsgfds ", "fwield1": "bfdsbfds", "fi7yeld1": 0, "fieewld1": "", "fielsd1": null, "fierld1": null, "figfdseld1": "Male", "fievld1": 30, "fielgfdd1": false, "fielqgd1": false, "fireld1": 79, "fiesvld1": 69, "fiegeld1": null, "figeresld1": 105, "fiaevld1": null, "fiezvld1": false, "fiveqeld1": false, "fieeld1": 30, "fiveryeld1": 1673894, "fivegrewld1": 7081624 } }, { "figfeld1": "gfdsgfds", "fielgfdsd1": 1745612, "fidseld1": 3394264, "fieldfd1": 2638049, "fievbvld1": 0, "fiebre4ld1": "", "fie2vld1": 64, "fievld1": { "fie1ld1": null, "fie3ld1": "05-01-2020", "fiel4d1": 2638049, "fiel5d1": 1673894, "fie6ld1": "gfds", "fwield1": "gfdsgf", "fi7yeld1": 0, "fieewld1": "gfdsgfds", "fielsd1": null, "fierld1": null, "figfdseld1": "Female", "fievld1": 30, "fielgfdd1": false, "fielqgd1": false, "fireld1": 69, "fiesvld1": 69, "fiegeld1": null, "figeresld1": 45, "fiaevld1": null, "fiezvld1": false, "fiveqeld1": false, "fieeld1": 30, "fiveryeld1": 1, "fivegrewld1": 11 } } ] }, "field1": null });
Array spread
[...arr, { "field31": "07-10-2020", "field12": "11:00 AM", "field13": null, "field14": null, "field15": null, "field16": 34, "field17": false, "field18": 5432, "field19": 5432, "field10": 321, "field123": 876, "field143": 2, "field13421": null, "field121": false, "field1fdsa": null, "field1fdsaa": { "field1d": 2, "fieldfds1": "feasdfesa" }, "field1dsa": { "fifdsaeld1": 123, "fiedld1": 765, "fieddvld1": null, "fiecld1": { "fieald1": "htesbfsgfds", "fcield1": "fdsafdsaf ", "fiesald1": 432 } }, "fiedfald1": { "fiecald1": 3, "field1": 6753253229, "fiecld1": { "fsaield1": "fdsafdsa", "fielgd1": "fdsafea", "fiedld1": 23432 } }, "fielt4d1": { "fiel2d1": 5423, "fiel24d1": 345, "field31": null, "fieldgfds1": true, "fiezcvld1": false, "fieagld1": null, "fiegfdsld1": null, "fiellkjd1": null, "fiehld1": null, "fiengftld1": null, "fieeld1": 0, "fiebvfld1": 138, "fiejukld1": 34, "feield1": null, "fiehguhkld1": 6.45, "fienld1": 14.72, "field1": 193.17, "fiefngld1": "fdsafdsafdsa", "fiefld1": "fdsafsfd", "fienbvld1": null, "fibveld1": null, "fiebnld1": [ { "figfeld1": "b&b", "fielgfdsd1": 3543, "fidseld1": 43, "fieldfd1": 235, "fievbvld1": 0, "fiebre4ld1": "", "fie2vld1": 64, "fievld1": { "fie1ld1": null, "fie3ld1": "05-01-2020", "fiel4d1": 2627508, "fiel5d1": 1673894, "fie6ld1": "gfdsgfds ", "fwield1": "bfdsbfds", "fi7yeld1": 0, "fieewld1": "", "fielsd1": null, "fierld1": null, "figfdseld1": "Male", "fievld1": 30, "fielgfdd1": false, "fielqgd1": false, "fireld1": 79, "fiesvld1": 69, "fiegeld1": null, "figeresld1": 105, "fiaevld1": null, "fiezvld1": false, "fiveqeld1": false, "fieeld1": 30, "fiveryeld1": 1673894, "fivegrewld1": 7081624 } }, { "figfeld1": "gfdsgfds", "fielgfdsd1": 1745612, "fidseld1": 3394264, "fieldfd1": 2638049, "fievbvld1": 0, "fiebre4ld1": "", "fie2vld1": 64, "fievld1": { "fie1ld1": null, "fie3ld1": "05-01-2020", "fiel4d1": 2638049, "fiel5d1": 1673894, "fie6ld1": "gfds", "fwield1": "gfdsgf", "fi7yeld1": 0, "fieewld1": "gfdsgfds", "fielsd1": null, "fierld1": null, "figfdseld1": "Female", "fievld1": 30, "fielgfdd1": false, "fielqgd1": false, "fireld1": 69, "fiesvld1": 69, "fiegeld1": null, "figeresld1": 45, "fiaevld1": null, "fiezvld1": false, "fiveqeld1": false, "fieeld1": 30, "fiveryeld1": 1, "fivegrewld1": 11 } } ] }, "field1": null }];
Rendered benchmark preparation results:
Suite status: <idle, ready to run>

Previous results
Test case name	Result
Array.prototype.push
Array.prototype.concat
Array spread
Fastest: N/A

Slowest: N/A

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Latest run results:
Run details: (Test run date: 3 years ago)
User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0
Browser/OS: Firefox 77 on Windows
View result in a separate tab
Test name	Executions per second
Array.prototype.push	318578.8 Ops/sec
Array.prototype.concat	12.8 Ops/sec
Array spread	16.7 Ops/sec
Array spread vs. push performance with large objects (version: 0)

Comparing performance of: Array.prototype.push vs Array.prototype.concat vs Array spread

Created: 3 years ago by: Guest

Jump to the latest result

Array.prototype.push

Array.prototype.concat

Array spread

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A
