copilot/optimize-library-performance - Branch - hckhanh/fast-url

Passed

Both parts empty

benchmark/join.bench.ts::join benchmarks::Edge cases

+10%

12.9 µs11.8 µs

Multiple separators in content

benchmark/join.bench.ts::join benchmarks::Edge cases

+10%

14.7 µs13.4 µs

Two path params + two query params

benchmark/urlcat.bench.ts::createUrl benchmarks::Medium complexity

+9%

112.3 µs102.8 µs

Three parameters (original)

benchmark/subst.bench.ts::subst benchmarks::Parameter count scaling

+9%

78.6 µs72.2 µs

Long strings with separator

benchmark/join.bench.ts::join benchmarks::Edge cases

+8%

14.7 µs13.6 µs

Join with separator at start of second part

benchmark/join.bench.ts::join benchmarks::Basic joins

+8%

16.6 µs15.3 µs

Join URL parts with slash

benchmark/join.bench.ts::join benchmarks::URL path separators

+8%

16.2 µs15 µs

Join URL parts both with slash

benchmark/join.bench.ts::join benchmarks::URL path separators

+7%

16.3 µs15.2 µs

Second part empty

benchmark/join.bench.ts::join benchmarks::Edge cases

+7%

14.2 µs13.3 µs

Join deep URL paths

benchmark/join.bench.ts::join benchmarks::URL path separators

+7%

16 µs15 µs

Both parts have separator at boundary

benchmark/join.bench.ts::join benchmarks::Basic joins

+7%

17.2 µs16.1 µs

Join empty first part with query

benchmark/join.bench.ts::join benchmarks::Query string separators

+7%

14.3 µs13.4 µs

Join with leading ampersand

benchmark/join.bench.ts::join benchmarks::Query string separators

+6%

21 µs19.7 µs

First part empty

benchmark/join.bench.ts::join benchmarks::Edge cases

+6%

14 µs13.3 µs

Join query parts with ampersand

benchmark/join.bench.ts::join benchmarks::Query string separators

+6%

15 µs14.2 µs

Ampersand separator

benchmark/join.bench.ts::join benchmarks::Different separators

+5%

13.9 µs13.2 µs

Slash separator

benchmark/join.bench.ts::join benchmarks::Different separators

+5%

13.9 µs13.2 µs

Single path parameter

benchmark/urlcat.bench.ts::createUrl benchmarks::Simple cases

+5%

85 µs81.2 µs

Pipe separator

benchmark/join.bench.ts::join benchmarks::Different separators

+4%

13.8 µs13.2 µs

Comma separator

benchmark/join.bench.ts::join benchmarks::Different separators

+4%

13.8 µs13.3 µs

Question mark separator

benchmark/join.bench.ts::join benchmarks::Different separators

+4%

13.8 µs13.3 µs

Join URL path with query string

benchmark/join.bench.ts::join benchmarks::Query string separators

+3%

13.6 µs13.1 µs

Heavy encoding (many special chars)

benchmark/querystring.bench.ts::stringify benchmarks::Special characters and encoding

+1%

57.2 µs56.4 µs

Analytics tracking params

benchmark/querystring.bench.ts::stringify benchmarks::Real-world use cases

+1%

79.3 µs78.8 µs

Empty string values

benchmark/querystring.bench.ts::stringify benchmarks::Edge cases

52.5 µs52.3 µs

Unicode characters

benchmark/querystring.bench.ts::stringify benchmarks::Special characters and encoding

54 µs53.7 µs

E-commerce cart params

benchmark/querystring.bench.ts::stringify benchmarks::Real-world use cases

62.9 µs62.7 µs

API query with includes

benchmark/querystring.bench.ts::stringify benchmarks::Real-world use cases

57 µs56.8 µs

Two parameters

benchmark/query.bench.ts::query benchmarks::Parameter count scaling

55.9 µs55.8 µs

Multi-select filter params

benchmark/querystring.bench.ts::stringify benchmarks::Real-world use cases

59.3 µs59.1 µs

Small object (2 params)

benchmark/querystring.bench.ts::stringify benchmarks::Comparison scenarios

24 µs23.9 µs

Short values (5 chars)

benchmark/query.bench.ts::query benchmarks::Value length scaling

49.9 µs49.8 µs

Boolean values only

benchmark/query.bench.ts::query benchmarks::Different value types

61.3 µs61.2 µs

Keys with special characters

benchmark/query.bench.ts::query benchmarks::Special characters

51.9 µs51.8 µs

Null and undefined values

benchmark/querystring.bench.ts::stringify benchmarks::Edge cases

59.6 µs59.5 µs

Number values only

benchmark/query.bench.ts::query benchmarks::Different value types

57.5 µs57.4 µs

Mixed encoding complexity

benchmark/querystring.bench.ts::stringify benchmarks::Special characters and encoding

56.3 µs56.2 µs

Fifty parameters

benchmark/querystring.bench.ts::stringify benchmarks::Parameter count scaling

195.5 µs195.2 µs

Values with spaces

benchmark/query.bench.ts::query benchmarks::Special characters

53 µs52.9 µs

Single parameter

benchmark/query.bench.ts::query benchmarks::Parameter count scaling

58.7 µs58.6 µs

Long values (50 chars)

benchmark/query.bench.ts::query benchmarks::Value length scaling

58.3 µs58.2 µs

Unicode characters

benchmark/query.bench.ts::query benchmarks::Special characters

62.9 µs62.8 µs

String values only

benchmark/query.bench.ts::query benchmarks::Different value types

60.6 µs60.5 µs

BigInt values

benchmark/query.bench.ts::query benchmarks::Different value types

69 µs68.9 µs

Original complex test

benchmark/query.bench.ts::query benchmarks::Real-world patterns

85.8 µs85.7 µs

Various language scripts

benchmark/querystring.bench.ts::encodeString benchmarks::Unicode and multi-byte characters

36.2 µs36.2 µs

Ten parameters

benchmark/query.bench.ts::query benchmarks::Parameter count scaling

70.8 µs70.7 µs

Five parameters

benchmark/query.bench.ts::query benchmarks::Parameter count scaling

68.1 µs68.1 µs

Values with special characters

benchmark/query.bench.ts::query benchmarks::Special characters

53 µs52.9 µs

Simple join without separators at boundaries

benchmark/join.bench.ts::join benchmarks::Basic joins

25.1 µs25.1 µs

Large object (16 params with arrays)

benchmark/querystring.bench.ts::stringify benchmarks::Comparison scenarios

42.1 µs42.1 µs

Twenty parameters

benchmark/query.bench.ts::query benchmarks::Parameter count scaling

98.8 µs98.8 µs

2-byte UTF-8 characters

benchmark/querystring.bench.ts::encodeString benchmarks::Unicode and multi-byte characters

77.3 µs77.2 µs

Complex multi-level template

benchmark/subst.bench.ts::subst benchmarks::Template complexity

76.6 µs76.5 µs

Form submission data

benchmark/querystring.bench.ts::stringify benchmarks::Real-world use cases

68.8 µs68.7 µs

Search with filters

benchmark/query.bench.ts::query benchmarks::Real-world patterns

69.3 µs69.3 µs

Array values

benchmark/query.bench.ts::query benchmarks::Different value types

66.6 µs66.5 µs

Mixed types

benchmark/query.bench.ts::query benchmarks::Different value types

71.7 µs71.7 µs

Heavy special characters (75% encoding)

benchmark/querystring.bench.ts::encodeString benchmarks::Character type variations

33.6 µs33.6 µs

Array of mixed types

benchmark/querystring.bench.ts::stringify benchmarks::Array values

50.7 µs50.7 µs

Mixed ASCII and Unicode

benchmark/querystring.bench.ts::encodeString benchmarks::Unicode and multi-byte characters

25.8 µs25.8 µs

Empty object

benchmark/query.bench.ts::query benchmarks::Parameter count scaling

22.6 µs22.6 µs

Email address

benchmark/querystring.bench.ts::encodeString benchmarks::Real-world patterns

19.9 µs19.9 µs

File path with spaces

benchmark/querystring.bench.ts::encodeString benchmarks::Real-world patterns

15.2 µs15.2 µs

Very long values (200 chars each)

benchmark/querystring.bench.ts::stringify benchmarks::Value length scaling

80.6 µs80.6 µs

API query with includes

benchmark/query.bench.ts::query benchmarks::Real-world patterns

63 µs63 µs

Medium values (20 chars)

benchmark/query.bench.ts::query benchmarks::Value length scaling

53 µs53 µs

BigInt values only

benchmark/querystring.bench.ts::stringify benchmarks::Value types

71.8 µs71.8 µs

Single parameter

benchmark/querystring.bench.ts::stringify benchmarks::Parameter count scaling

55.5 µs55.5 µs

Mixed primitive types

benchmark/querystring.bench.ts::stringify benchmarks::Value types

77.4 µs77.4 µs

Long values (50 chars each)

benchmark/querystring.bench.ts::stringify benchmarks::Value length scaling

56.4 µs56.5 µs

String values only

benchmark/querystring.bench.ts::stringify benchmarks::Value types

52.4 µs52.4 µs

Boolean values only

benchmark/querystring.bench.ts::stringify benchmarks::Value types

52.2 µs52.2 µs

Twenty parameters

benchmark/querystring.bench.ts::stringify benchmarks::Parameter count scaling

100 µs100.1 µs

Medium array (10 items)

benchmark/querystring.bench.ts::stringify benchmarks::Array values

79.5 µs79.5 µs

Light encoding (spaces only)

benchmark/querystring.bench.ts::stringify benchmarks::Special characters and encoding

50.9 µs50.9 µs

Short values (5 chars each)

benchmark/querystring.bench.ts::stringify benchmarks::Value length scaling

51.9 µs52 µs

URL path

benchmark/querystring.bench.ts::encodeString benchmarks::Real-world patterns

24.8 µs24.9 µs

Special numeric values

benchmark/querystring.bench.ts::stringify benchmarks::Edge cases

94.7 µs94.9 µs

Ten parameters

benchmark/querystring.bench.ts::stringify benchmarks::Parameter count scaling

70.6 µs70.6 µs

Small array (3 items)

benchmark/querystring.bench.ts::stringify benchmarks::Array values

46.6 µs46.7 µs

Number values only

benchmark/querystring.bench.ts::stringify benchmarks::Value types

57.9 µs58 µs

Medium ASCII string (50 chars)

benchmark/querystring.bench.ts::encodeString benchmarks::String length scaling

44.2 µs44.2 µs

Multiple arrays

benchmark/querystring.bench.ts::stringify benchmarks::Array values

54.5 µs54.6 µs

Five parameters

benchmark/querystring.bench.ts::stringify benchmarks::Parameter count scaling

55.3 µs55.4 µs

Empty object

benchmark/querystring.bench.ts::stringify benchmarks::Parameter count scaling

16.8 µs16.8 µs

Two parameters

benchmark/querystring.bench.ts::stringify benchmarks::Parameter count scaling

51 µs51 µs

Very long ASCII string (1000 chars)

benchmark/querystring.bench.ts::encodeString benchmarks::String length scaling

49.5 µs49.6 µs

Medium values (20 chars each)

benchmark/querystring.bench.ts::stringify benchmarks::Value length scaling

59.1 µs59.2 µs

SQL-like query

benchmark/querystring.bench.ts::encodeString benchmarks::Real-world patterns

15.9 µs15.9 µs

Large array (50 items)

benchmark/querystring.bench.ts::stringify benchmarks::Array values

1.9 ms1.9 ms

Search query with special chars

benchmark/querystring.bench.ts::encodeString benchmarks::Real-world patterns

14.8 µs14.9 µs

JSON-like string

benchmark/querystring.bench.ts::encodeString benchmarks::Real-world patterns

24 µs24.1 µs

Medium object (10 params)

benchmark/querystring.bench.ts::stringify benchmarks::Comparison scenarios

30.7 µs30.7 µs

Long ASCII string (200 chars)

benchmark/querystring.bench.ts::encodeString benchmarks::String length scaling

22.5 µs22.5 µs

No encoding needed (pure alphanumeric)

benchmark/querystring.bench.ts::stringify benchmarks::Special characters and encoding

48.2 µs48.3 µs

4-byte UTF-8 characters (emojis)

benchmark/querystring.bench.ts::encodeString benchmarks::Unicode and multi-byte characters

22.1 µs22.2 µs

Empty arrays

benchmark/querystring.bench.ts::stringify benchmarks::Edge cases

46.3 µs46.4 µs

Mixed safe and unsafe (50% encoding)

benchmark/querystring.bench.ts::encodeString benchmarks::Character type variations

15.8 µs15.8 µs

3-byte UTF-8 characters (CJK)

benchmark/querystring.bench.ts::encodeString benchmarks::Unicode and multi-byte characters

23.6 µs23.7 µs

Empty string

benchmark/querystring.bench.ts::encodeString benchmarks::String length scaling

22.6 µs22.7 µs

All spaces (maximum encoding)

benchmark/querystring.bench.ts::encodeString benchmarks::Character type variations

13.8 µs13.9 µs

Safe special characters (no encoding needed)

benchmark/querystring.bench.ts::encodeString benchmarks::Character type variations

13.6 µs13.6 µs

Search with filters

benchmark/querystring.bench.ts::stringify benchmarks::Real-world use cases

62.9 µs63.2 µs

Short ASCII string (10 chars)

benchmark/querystring.bench.ts::encodeString benchmarks::String length scaling

18 µs18.1 µs

Long parameter values

benchmark/subst.bench.ts::subst benchmarks::Special characters

-1%

63.8 µs64.2 µs

Pure alphanumeric (no encoding needed)

benchmark/querystring.bench.ts::encodeString benchmarks::Character type variations

-1%

13.9 µs14 µs

Very deep template (8 levels)

benchmark/subst.bench.ts::subst benchmarks::Template complexity

-1%

83.1 µs83.7 µs

Long template with many segments

benchmark/subst.bench.ts::subst benchmarks::Template patterns

-1%

73.4 µs74 µs

Five parameters

benchmark/subst.bench.ts::subst benchmarks::Parameter count scaling

-1%

76.2 µs77 µs

Deep nesting with IDs

benchmark/subst.bench.ts::subst benchmarks::Real-world patterns

-1%

68.2 µs69 µs

String values

benchmark/subst.bench.ts::subst benchmarks::Different value types

-1%

69.8 µs70.6 µs

Date-based path

benchmark/subst.bench.ts::subst benchmarks::Real-world patterns

-1%

76.2 µs77.1 µs

Versioned API endpoint

benchmark/subst.bench.ts::subst benchmarks::Real-world patterns

-1%

68.9 µs69.7 µs

CamelCase parameter names

benchmark/subst.bench.ts::subst benchmarks::Parameter name patterns

-1%

69.3 µs70.1 µs

Ten parameters

benchmark/subst.bench.ts::subst benchmarks::Parameter count scaling

-1%

94.9 µs96.1 µs

Values with special chars

benchmark/subst.bench.ts::subst benchmarks::Special characters

-1%

67 µs67.9 µs

Mixed value types

benchmark/subst.bench.ts::subst benchmarks::Different value types

-1%

74.4 µs75.4 µs

Long parameter names

benchmark/subst.bench.ts::subst benchmarks::Parameter name patterns

-1%

68.5 µs69.4 µs

Nested resource path

benchmark/subst.bench.ts::subst benchmarks::Real-world patterns

-1%

66.7 µs67.6 µs

Medium complexity template

benchmark/subst.bench.ts::subst benchmarks::Template complexity

-1%

66.7 µs67.6 µs

Parameters with static segments

benchmark/subst.bench.ts::subst benchmarks::Template patterns

-1%

67 µs68 µs

Number values

benchmark/subst.bench.ts::subst benchmarks::Different value types

-1%

69.5 µs70.5 µs

Values with spaces

benchmark/subst.bench.ts::subst benchmarks::Special characters

-1%

63.1 µs64 µs

Underscore parameter names

benchmark/subst.bench.ts::subst benchmarks::Parameter name patterns

-1%

67.6 µs68.6 µs

Boolean values

benchmark/subst.bench.ts::subst benchmarks::Different value types

-1%

62.8 µs63.7 µs

REST API resource path

benchmark/subst.bench.ts::subst benchmarks::Real-world patterns

-1%

62.8 µs63.7 µs

Consecutive parameters

benchmark/subst.bench.ts::subst benchmarks::Template patterns

-1%

68 µs69.1 µs

Parameter at beginning

benchmark/subst.bench.ts::subst benchmarks::Template patterns

-2%

63.3 µs64.2 µs

Short parameter names

benchmark/subst.bench.ts::subst benchmarks::Parameter name patterns

-2%

65.9 µs66.9 µs

Parameter at end

benchmark/subst.bench.ts::subst benchmarks::Template patterns

-2%

64.5 µs65.6 µs

Two parameters

benchmark/subst.bench.ts::subst benchmarks::Parameter count scaling

-2%

70.2 µs71.3 µs

Single parameter

benchmark/subst.bench.ts::subst benchmarks::Parameter count scaling

-2%

69.3 µs70.6 µs

Medium encoding (common special chars)

benchmark/querystring.bench.ts::stringify benchmarks::Special characters and encoding

-2%

51.3 µs52.4 µs

Unicode in values

benchmark/subst.bench.ts::subst benchmarks::Special characters

-2%

62.9 µs64.4 µs

Simple single-segment template

benchmark/subst.bench.ts::subst benchmarks::Template complexity

-4%

61.2 µs63.7 µs

Optimize core URL building functions (2-3x performance improvement)

Benchmarks

Skipped (22)

Failed

Improved

Passed

Commits