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feat: filter

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This commit is contained in:
Ruidy 2021-12-28 19:36:36 -04:00
parent d27ed24589
commit ad518df993
4 changed files with 30 additions and 5 deletions
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10
filter.go Normal file
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@ -0,0 +1,10 @@
package underscore
func Filter[T any](values []T, predicate func(T) bool) (res []T) {
for _, v := range values {
if predicate(v) {
res = append(res, v)
}
}
return res
}

17
filter_test.go Normal file
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@ -0,0 +1,17 @@
package underscore_test
import (
"testing"
"github.com/stretchr/testify/assert"
u "github.com/rjNemo/underscore"
)
func TestFilter(t *testing.T) {
nums := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
isEven := func(n int) bool { return n%2 == 0 }
want := []int{0, 2, 4, 6, 8}
assert.Equal(t, want, u.Filter(nums, isEven))
}

4
go.mod
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@ -2,10 +2,10 @@ module github.com/rjNemo/underscore
go 1.18
require github.com/stretchr/testify v1.7.0
require (
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/stretchr/objx v0.3.0 // indirect
github.com/stretchr/testify v1.7.0 // indirect
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
)

4
go.sum
View file

@ -4,11 +4,9 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.3.0 h1:NGXK3lHquSN08v5vWalVI/L8XU9hdzE/G6xsrze47As=
github.com/stretchr/objx v0.3.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=