Golang html/template.Template.Lookup function examples
package html/template
Lookup returns the template with the given name(1st parameter) that is associated with t, or nil if there is no such template.
Golang html/template.Template.Lookup function usage examples
Example 1:
func parseHTMLTemplates(sets [][]string) error {
for _, set := range sets {
t := htmpl.New("")
t.Funcs(htmpl.FuncMap{
"urlDomain": urlDomain,
"urlTo": urlTo,
"itoa": strconv.Itoa,
"googleAnalyticsID": func() string { return os.Getenv("GOOGLE_ANALYTICS_ID") },
})
_, err := t.ParseFiles(joinTemplateDir(TemplateDir, set)...)
if err != nil {
return fmt.Errorf("template %v: %s", set, err)
}
t = t.Lookup("ROOT") // <-- here
if t == nil {
return fmt.Errorf("ROOT template not found in %v", set)
}
templates[set[0]] = t
}
return nil
}
Example 2:
func (r *RenderTemplateResult) Apply(req *http.Request, w http.ResponseWriter) {
w.Header().Set("Content-Type", "text/html; charset=utf-8")
if r.TemplateSet.Lookup(r.TemplateName) == nil {
w.Write([]byte(fmt.Sprintf("can't found template:%s\n",
r.TemplateName)))
return
}
...
Reference :
Advertisement
Something interesting
Tutorials
+8.2k Golang : Add build version and other information in executables
+10.3k Golang : Embed secret text string into binary(executable) file
+16.9k Golang : How to generate QR codes?
+21.8k Golang : Upload big file (larger than 100MB) to AWS S3 with multipart upload
+6k Golang : Experimenting with the Rejang script
+5.4k Golang : Qt update UI elements with core.QCoreApplication_ProcessEvents
+8.2k Golang : Get final or effective URL with Request.URL example
+12.6k Golang : flag provided but not defined error
+17.9k Golang : Simple client server example
+4.1k Javascript : Empty an array example
+12.3k Golang : Validate email address