Benchmark: Spread operator vs Push vs Concat in reduce (add array)

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) => { const hasVowel = ['A', 'E', 'I', 'O', 'U']; if (hasVowel) { return [ ...acc, ...hasVowel] } 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) => { const hasVowel = ['A', 'E', 'I', 'O', 'U']; if (hasVowel) { acc.push(...hasVowel); } 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) => { const hasVowel = ['A', 'E', 'I', 'O', 'U']; if (hasVowel) { return acc.concat(...hasVowel); } return acc; }, []);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
spread operator
Push
Concat

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

It appears that we have a benchmarking result for a JavaScript function that compares the performance of different string manipulation methods.

To answer your question, I'll need to analyze the rawUAString and determine which method is being tested.

The `Push` test uses the spread operator (`...`) with an array and a vowel:
```javascript
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' ]\r\nvar hasVowel = ['A', 'E', 'I', 'O', 'U'];\r\nif (hasVowel) {\r\n\treturn params.concat(...hasVowel);\r\n}\r\n"
```
The `Concat` test uses the same array, but concatenates it with an array containing vowels:
```javascript
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' ]\r\nvar hasVowel = ['A', 'E', 'I', 'O', 'U'];\r\nif (hasVowel) {\r\n\treturn params.concat(hasVowel);\r\n}\r\n"
```
Based on the code, I would say that both tests are using the `concat` method to concatenate an array with an array containing vowels. However, in the `Push` test, the spread operator is used instead of the dot notation (`.`) to access the `hasVowel` array.

If you'd like me to provide more insight or help with anything else, feel free to ask!

Related benchmarks:

Spread operator vs Push vs Concat in reduce (add array) (version: 0)

Compare the new ES6 spread operator with array push

Comparing performance of: spread operator vs Push vs Concat

Created: 4 years ago by: Guest

Jump to the latest result

spread operator

Push

Concat

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):