Awkward Mustache Examples

gistfile1.clj

;; Nested data in tokens

(def template
"{{#parent}}
   {{child1}}
   {{child2}}
   {{#child3}}
     {{grandchild}}
   {{/child3}}
 {{/parent}}")

(render-string template
  {:parent
   {:child1 "I'm the first child"
    :child2 "I'm the middle child"
    :child3 {:grandchild "I'm the grandkid"}}}) ; =>
    
"   I'm the first child
    I'm the middle child
    I'm the grandkid
"

;; Versus Selmer

(def template
"{{parent.child1}}
 {{parent.child2}}
 {{parent.child3.grandchild}}")

(render template
  {:parent
   {:child1 "I'm the first child"
    :child2 "I'm the middle child"
    :child3 {:grandchild "I'm the grandkid"}}}) ; =>
    
"I'm the first child
 I'm the middle child
 I'm the grandkid"


;; Treating the first of many items differently

(def template 
"{{#items}}
  {{#first}}
    <li>I'm the first - {{name}}</li>
  {{/first}}
  {{^first}}
    <li>I'm one of the others - {{name}}</li>
  {{/first}}
{{/items}}")

(render-string template
  {:items 
   [
    {:name "First one" :first true ; <- ew
    }
    {:name "2nd"}
    {:name "Third"}
    {:name "Fourth" :first true ; <- oops
    }
   ]
  }) ; =>
  
  "    <li>I'm the first - First one</li>
       <li>I'm one of the others - 2nd</li>
       <li>I'm one of the others - Third</li>
       <li>I'm the first - Fourth</li>
  "
  
;; Versus Selmer

(def template
"{% for item in items %}
  {% if forloop.first %}
    <li>I'm the first - {{item.name}}</li>
  {% else%}
    <li>I'm one of the others - {{item.name}}</li>
  {% endif %}
{% endfor %}")

(render template
  {:items 
   [
    {:name "First one"}
    {:name "2nd"}
    {:name "Third"}
    {:name "Fourth"}
   ]
  }) ; =>
  
"
    <li>I'm the first - First one</li>
    <li>I'm one of the others - 2nd</li>
    <li>I'm one of the others - Third</li>
    <li>I'm one of the others - Fourth</li>
"