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Run results for:
Spread operator vs Push vs Concat in reduce
Compare the new ES6 spread operator with array push
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=502975" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
Push
150K/s
spread operator
94K/s
Concat
43K/s
View exact numbers
Test name
Executions per second
✓
Push
149,834 Ops/sec
spread operator
93,676 Ops/sec
Concat
43,430 Ops/sec
Tests:
spread operator
var params = [ 'AF','AL','DZ','AS','AD','AO','AI','A1','AQ','AG','AR','AM','AW','AU','AT','AZ','BS','BH','BD','BB','BY','BE','BZ','BJ','BM','BT','BO','BQ','BA','BW','BV','BR','IO','BN','BG','BF','BI','KH','CM','CA','IC','CV','KY','CF','TD','CL','CN','CX','CC','CO','KM','CD','CG','CK','CR','CI','HR','CU','CW','CY','CZ','DK','DJ','DM','DO','EC','EG','SV','GQ','ER','EE','ET','FK','FO','FJ','FI','FR','GF','PF','TF','GA','GM','GE','DE','GH','GI','GR','GL','GD','GP','GU','GT','GG','GN','GW','GY','HT','HM','HN','HK','HU','IS','IN','ID','IR','IQ','IE','IM','IL','IT','JM','JP','JE','JO','KZ','KE','KI','KP','KR','XK','KW','KG','LA','LV','LB','LS','LR','LY','LI','LT','LU','MO','MG','MW','MY','MV','ML','MT','MH','MQ','MR','MU','YT','MX','FM','MD','MC','MN','ME','MS','MA','MZ','MM','NA','NR','NP','NL','AN','NC','NZ','NI','NE','NG','NU','NF','MK','MP','NO','OM','O1','PK','PW','PS','PA','PG','PY','PE','PH','PN','PL','PT','PR','QA','RE','RO','RU','RW','BL','SH','KN','LC','MF','PM','VC','WS','SM','ST','A2','SA','SN','RS','SC','SL','SG','SX','SK','SI','SB','SO','ZA','GS','SS','ES','LK','SD','SR','SJ','SZ','SE','CH','SY','TW','TJ','TZ','TH','TL','TG','TK','TO','TT','TN','TR','TM','TC','TV','UG','UA','AE','UK','US','UM','XX','UY','UZ','VU','VA','VE','VN','VG','VI','WF','EH','YE','ZM','ZW' ] var other = params.reduce((acc, countryCode) => { var hasVowel = ['A', 'E', 'I', 'O', 'U'].some((c) => countryCode.indexOf(c) !== -1); if (hasVowel) { return [ ...acc, countryCode] } return acc; }, []);
Push
var params = [ 'AF','AL','DZ','AS','AD','AO','AI','A1','AQ','AG','AR','AM','AW','AU','AT','AZ','BS','BH','BD','BB','BY','BE','BZ','BJ','BM','BT','BO','BQ','BA','BW','BV','BR','IO','BN','BG','BF','BI','KH','CM','CA','IC','CV','KY','CF','TD','CL','CN','CX','CC','CO','KM','CD','CG','CK','CR','CI','HR','CU','CW','CY','CZ','DK','DJ','DM','DO','EC','EG','SV','GQ','ER','EE','ET','FK','FO','FJ','FI','FR','GF','PF','TF','GA','GM','GE','DE','GH','GI','GR','GL','GD','GP','GU','GT','GG','GN','GW','GY','HT','HM','HN','HK','HU','IS','IN','ID','IR','IQ','IE','IM','IL','IT','JM','JP','JE','JO','KZ','KE','KI','KP','KR','XK','KW','KG','LA','LV','LB','LS','LR','LY','LI','LT','LU','MO','MG','MW','MY','MV','ML','MT','MH','MQ','MR','MU','YT','MX','FM','MD','MC','MN','ME','MS','MA','MZ','MM','NA','NR','NP','NL','AN','NC','NZ','NI','NE','NG','NU','NF','MK','MP','NO','OM','O1','PK','PW','PS','PA','PG','PY','PE','PH','PN','PL','PT','PR','QA','RE','RO','RU','RW','BL','SH','KN','LC','MF','PM','VC','WS','SM','ST','A2','SA','SN','RS','SC','SL','SG','SX','SK','SI','SB','SO','ZA','GS','SS','ES','LK','SD','SR','SJ','SZ','SE','CH','SY','TW','TJ','TZ','TH','TL','TG','TK','TO','TT','TN','TR','TM','TC','TV','UG','UA','AE','UK','US','UM','XX','UY','UZ','VU','VA','VE','VN','VG','VI','WF','EH','YE','ZM','ZW' ] var other = params.reduce((acc, countryCode) => { var hasVowel = ['A', 'E', 'I', 'O', 'U'].some((c) => countryCode.indexOf(c) !== -1); if (hasVowel) { acc.push(countryCode); } return acc; }, []);
Concat
var params = [ 'AF','AL','DZ','AS','AD','AO','AI','A1','AQ','AG','AR','AM','AW','AU','AT','AZ','BS','BH','BD','BB','BY','BE','BZ','BJ','BM','BT','BO','BQ','BA','BW','BV','BR','IO','BN','BG','BF','BI','KH','CM','CA','IC','CV','KY','CF','TD','CL','CN','CX','CC','CO','KM','CD','CG','CK','CR','CI','HR','CU','CW','CY','CZ','DK','DJ','DM','DO','EC','EG','SV','GQ','ER','EE','ET','FK','FO','FJ','FI','FR','GF','PF','TF','GA','GM','GE','DE','GH','GI','GR','GL','GD','GP','GU','GT','GG','GN','GW','GY','HT','HM','HN','HK','HU','IS','IN','ID','IR','IQ','IE','IM','IL','IT','JM','JP','JE','JO','KZ','KE','KI','KP','KR','XK','KW','KG','LA','LV','LB','LS','LR','LY','LI','LT','LU','MO','MG','MW','MY','MV','ML','MT','MH','MQ','MR','MU','YT','MX','FM','MD','MC','MN','ME','MS','MA','MZ','MM','NA','NR','NP','NL','AN','NC','NZ','NI','NE','NG','NU','NF','MK','MP','NO','OM','O1','PK','PW','PS','PA','PG','PY','PE','PH','PN','PL','PT','PR','QA','RE','RO','RU','RW','BL','SH','KN','LC','MF','PM','VC','WS','SM','ST','A2','SA','SN','RS','SC','SL','SG','SX','SK','SI','SB','SO','ZA','GS','SS','ES','LK','SD','SR','SJ','SZ','SE','CH','SY','TW','TJ','TZ','TH','TL','TG','TK','TO','TT','TN','TR','TM','TC','TV','UG','UA','AE','UK','US','UM','XX','UY','UZ','VU','VA','VE','VN','VG','VI','WF','EH','YE','ZM','ZW' ] var other = params.reduce((acc, countryCode) => { var hasVowel = ['A', 'E', 'I', 'O', 'U'].some((c) => countryCode.indexOf(c) !== -1); if (hasVowel) { return acc.concat(countryCode); } return acc; }, []);