golang template template custom function usage example

This example demonstrates the use of the golang template template custom functions. I will share it with you for your reference as follows:

golang's templates are 10 points strong, and unix pipe-style function calls are a favorite.

There are many built-in templates that you can refer to in the pkg documentation,

You can also implement custom functions.

Examples are as follows:

package main

import (

    "text/template"

    "time"

    "os"

)

type User struct {

    Username, Password string

    RegTime time.Time

}

func ShowTime(t time.Time, format string) string {

    return t.Format(format)

}

func main() {

    u := User{"dotcoo", "dotcoopwd", time.Now()}

    t, err := template.New("text").Funcs(template.FuncMap{"showtime":ShowTime}).

        Parse(`<p>{{.Username}}|{{.Password}}|{{.RegTime.Format "2006-01-02 15:04:05"}}</p>

<p>{{.Username}}|{{.Password}}|{{showtime .RegTime "2006-01-02 15:04:05"}}</p>

`)

    if err != nil {

        panic(err)

    }

    t.Execute(os.Stdout, u)

}

I hope this article has been helpful to you in the programming of Go language.