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--- go:php:templating:go_html_template_range [2026/01/12 22:47] – created phong2018
+++ go:php:templating:go_html_template_range [2026/01/12 22:50] (current) – removed phong2018
@@ Line 1: / Line 1: @@
-====== php:templating:go_html_template_range ======
-[[php:start|PHP]] → [[php:templating:start|Templating]] → Go html/template (range loop)
-Note: html/template is a Go (Golang) standard library, not PHP. But the idea of “looping in templates” is similar to PHP templating engines (Blade/Twig).
-===== What it is =====
-In Go html/template, the action used to loop over a slice/array/map is:
-{{range .}} ... {{end}}
-range iterates over the data (e.g., a slice) and renders the inside block once per element.
-. (dot) is the “current context”. Inside range, . becomes the current item.
-===== What it’s for =====
-Render lists in HTML: menus, table rows, cards, comments, products, etc.
-Iterate over a map to output key/value.
-Handle empty lists using else.
-===== Examples =====
-) Simple slice loop
-{{range .}}
-  <li>{{.}}</li>
-{{end}}
-If you pass []string{"a", "b"}, you’ll get two <li> items.
-) Index + item
-{{range $i, $item := .}}
-  <div>{{$i}} - {{$item}}</div>
-{{end}}
-) Loop over a slice of structs
-Assume your data is []User:
-{{range .}}
-  <p>Name: {{.Name}} | Email: {{.Email}}</p>
-{{end}}
-) Empty list handling (else)
-{{range .}}
-  <li>{{.}}</li>
-{{else}}
-  <li>No items</li>
-{{end}}
-===== Key points =====
-The correct loop syntax is {{range .}} ... {{end}}.
-Inside range, . becomes the current element.
-You can bind variables: {{range $i, $v := .}} ... {{end}}.
-You can add {{else}} to handle empty collections.
-===== Hard words (with IPA + Vietnamese) =====
-template /ˈtɛm.plət/: mẫu giao diện / khuôn render
-action /ˈæk.ʃən/: hành động (cú pháp lệnh trong template)
-range /reɪndʒ/: lặp / duyệt qua
-slice /slaɪs/: mảng động trong Go (danh sách thay đổi độ dài)
-context /ˈkɒn.tekst/: ngữ cảnh (dữ liệu mà . đang trỏ tới)