Slice-Helper

It's just a convinience to work with slices.

Examples

Consider these data for the next examples:

var programmingLanguages = []ProgrammingLanguage{
	{Id: 1, Name: "JavaScript", ReleasedYear: 1995, GithutRank: 1, PyplRank: 3},
	{Id: 3, Name: "Java", ReleasedYear: 1995, GithutRank: 3, PyplRank: 2},
	{Id: 2, Name: "Python", ReleasedYear: 1991, GithutRank: 2, PyplRank: 1},
	{Id: 4, Name: "TypeScript", ReleasedYear: 2012, GithutRank: 7, PyplRank: 10},
	{Id: 5, Name: "C#", ReleasedYear: 2000, GithutRank: 9, PyplRank: 4},
}

Find

p := collections.Find(programmingLanguages, func(p ProgrammingLanguage) bool {
		return p.Id == 4
})
fmt.Println(*p)

Output

{4 TypeScript 2012 7 10}

Filter

languages := collections.FilterArray(programmingLanguages, func(p ProgrammingLanguage) bool {
		return p.GithutRank > 6
})
fmt.Println(languages)

Output

[{4 TypeScript 2012 7 10} {5 C# 2000 9 4}]

Map

langNames := collections.MapArray(programmingLanguages, func(p ProgrammingLanguage) string {
		return p.Name
})
fmt.Println(langNames)

Output

[JavaScript Java Python TypeScript C#]

Some

shouldBeTrue := collections.Some(programmingLanguages, func(p ProgrammingLanguage) bool {
	return p.GithutRank == 7
})

shouldBeFalse := collections.Some(programmingLanguages, func(p ProgrammingLanguage) bool {
	return p.GithutRank == 4
})
fmt.Println("shouldBeTrue: ", shouldBeTrue, "shouldBeFalse: ", shouldBeFalse)

Output

shouldBeTrue:  true shouldBeFalse:  false

Every

shouldBeTrue = collections.Every(programmingLanguages, func(p ProgrammingLanguage) bool {
	return p.GithutRank < 10
})

shouldBeFalse = collections.Every(programmingLanguages, func(p ProgrammingLanguage) bool {
    return p.GithutRank > 4
})
fmt.Println("shouldBeTrue: ", shouldBeTrue, "shouldBeFalse: ", shouldBeFalse)

Output

shouldBeTrue:  true shouldBeFalse:  false

Group

sumOfRankings := collections.Group(programmingLanguages, func(p ProgrammingLanguage, amount int) int {
	return p.GithutRank + amount
})
fmt.Println("Some of Rankings: ", sumOfRankings)

Output

Sum of Rankings:  22