Step by Step solution about How to resolve the algorithm Create an HTML table step by step in the Go programming language

This code is written in the Go programming language and provides an example of how to use the html/template package to create and apply a template to data. Below is a detailed explanation of the code:

1. Package: The code is part of the main package.

2. Imports: The code imports the following packages:

   • "fmt": Used for printing
   • "html/template": Used for creating and applying templates
   • "os": Used for writing to the standard output

3. Type: A row struct is defined, which has three integer fields: X, Y, and Z.

4. Template: A text template tmpl is defined using the html/template.Must(template.New("").Parse(tmpl)) line. Here:

   • template.New("") creates a new template with an empty name.
   • Parse(tmpl) parses the provided template string tmpl into the created template.

5. Data: A slice of row structs named data is created and populated with four elements. Each element represents a row with specific X, Y, and Z values.

6. Execution: The template ct is executed by calling ct.Execute(os.Stdout, data). Here, os.Stdout is used as the output destination, and data is the data to be applied to the template. If there's an error during execution, it is printed using fmt.Println(err).

7. Output: The result of applying the template to the data is printed to the standard output. It generates a simple HTML table with four rows, each containing the X, Y, and Z values from the data.

When the code is executed, it produces the following output:

<table>
   <tr><th></th><th>X</th><th>Y</th><th>Z</th></tr>
   <tr><td>0</td><td>0</td><td>1</td><td>2</td></tr>
   <tr><td>1</td><td>3</td><td>4</td><td>5</td></tr>
   <tr><td>2</td><td>6</td><td>7</td><td>8</td></tr>
   <tr><td>3</td><td>9</td><td>10</td><td>11</td></tr>
</table>

package main

import (
    "fmt"
    "html/template"
    "os"
)

type row struct {
    X, Y, Z int
}

var tmpl = `<table>
    <tr><th></th><th>X</th><th>Y</th><th>Z</th></tr>
{{range $ix, $row := .}}    <tr><td>{{$ix}}</td>
        <td>{{$row.X}}</td>
        <td>{{$row.Y}}</td>
        <td>{{$row.Z}}</td></tr>
{{end}}</table>
`

func main() {
    // create template
    ct := template.Must(template.New("").Parse(tmpl))

    // make up data
    data := make([]row, 4)
    for r := range data {
        data[r] = row{r*3, r*3+1, r*3+2}
    }

    // apply template to data
    if err := ct.Execute(os.Stdout, data); err != nil {
        fmt.Println(err)
    }
}


<table>
    <tr><th></th><th>X</th><th>Y</th><th>Z</th></tr>
    <tr><td>0</td><td>0</td><td>1</td><td>2</td></tr>
    <tr><td>1</td><td>3</td><td>4</td><td>5</td></tr>
    <tr><td>2</td><td>6</td><td>7</td><td>8</td></tr>
    <tr><td>3</td><td>9</td><td>10</td><td>11</td></tr>
</table>