Namespace template

Package template is a thin wrapper around the standard html/template and text/template packages that implements a convenient registry to load and cache templates on the fly concurrently.

It was created to assist the JSVM plugin HTML rendering, but could be used in other Go code.

Example:

 registry := template.NewRegistry()

 html1, err := registry.LoadFiles(
   // the files set wil be parsed only once and then cached
   "layout.html",
   "content.html",
 ).Render(map[string]any{"name": "John"})

 html2, err := registry.LoadFiles(
   // reuse the already parsed and cached files set
   "layout.html",
   "content.html",
 ).Render(map[string]any{"name": "Jane"})
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