</head>
<body>
{{if .}}
-<img src="http://chart.apis.google.com/chart?chs=300x300&amp;cht=qr&amp;choe=UTF-8&amp;chl={{urlquery .}}"
-/>
+<img src="http://chart.apis.google.com/chart?chs=300x300&cht=qr&choe=UTF-8&chl={{urlquery .}}" />
<br>
{{html .}}
<br>
form value.
Within the template text (<code>templateStr</code>),
double-brace-delimited pieces denote template actions.
-The piece from the <code>{{if .}}</code>
+The piece from <code>{{if .}}</code>
to <code>{{end}}</code> executes only if the value of the current data item, called <code>.</code> (dot),
is non-empty.
That is, when the string is empty, this piece of the template is suppressed.
form value.
Within the template text (<code>templateStr</code>),
double-brace-delimited pieces denote template actions.
-The piece from the <code>{{html "{{if .}}"}}</code>
+The piece from <code>{{html "{{if .}}"}}</code>
to <code>{{html "{{end}}"}}</code> executes only if the value of the current data item, called <code>.</code> (dot),
is non-empty.
That is, when the string is empty, this piece of the template is suppressed.