go-pkgz / stringutils / 16893417188

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github

feat: add comprehensive string and slice utility functions

add 12 new utility functions organized into categories:
- slice operations: Filter, Map, Reverse, IndexOf, LastIndexOf
- set operations: Difference, Union, Intersection
- string operations: NormalizeWhitespace, IsBlank, RemovePrefix, RemoveSuffix

all functions follow existing patterns with proper nil/empty handling, create new slices without mutation, and use efficient O(n) algorithms for set operations. includes comprehensive tests maintaining 98.8% coverage.

127 of 129 new or added lines in 1 file covered. (98.45%)

242 of 246 relevant lines covered (98.37%)

20.41 hits per line