path

• func Dir(path string) string
• func Ext(path string) string
• func Join(elem ...string) string
• func Base(path string) string

func Base(path string) string

Base returns the last element of path. Trailing slashes are removed before extracting the last element. If the path is empty, Base returns ".". If the path consists entirely of slashes, Base returns "/".

package main

import (
    "fmt"
    "path"
)

func main() {
    fmt.Println(path.Base("/a/b"))
    fmt.Println(path.Base("/"))
    fmt.Println(path.Base(""))
}

b
/
.

func Dir(path string) string

package main

import (
    "fmt"
    "path"
)

func main() {
    fmt.Println(path.Dir("/a/b/c"))
    fmt.Println(path.Dir("a/b/c"))
    fmt.Println(path.Dir("/a/"))
    fmt.Println(path.Dir("a/"))
    fmt.Println(path.Dir("/"))
    fmt.Println(path.Dir(""))
}

/a/b
a/b
/a
a
/
.

func Ext(path string) string

package main

import (
    "fmt"
    "path"
)

func main() {
    fmt.Println(path.Ext("/a/b/c/bar.css"))
    fmt.Println(path.Ext("/"))
    fmt.Println(path.Ext(""))
}

.css

func Join(elem ...string) string

package main

import (
    "fmt"
    "path"
)

func main() {
    fmt.Println(path.Join("a", "b", "c"))
    fmt.Println(path.Join("a", "b/c"))
    fmt.Println(path.Join("a/b", "c"))
    fmt.Println(path.Join("", ""))
    fmt.Println(path.Join("a", ""))
    fmt.Println(path.Join("", "a"))
}

a/b/c
a/b/c
a/b/c

a
a