function

Like {{#expression}}, but renders the opposite subsection depending on the type of expression or the expression's return value.

`{{^EXPRESSION}}FN{{else}}INVERSE{{/key}}`

Works just like {{#expression}}, but renders INVERSE when it would have rendered the FN block and vice-versa.

For example:

{{^ isOver18(person) }} Can't Vote {{/isOver18}}

Renders Can't Vote if isOver18(person) returns falsey.

Parameters

EXPRESSION {Literal Expression|KeyLookup Expression|Call Expression|Helper Expression}:
An expression type. Behavior depends on the type of expression:
- KeyLookup Expression and Call Expressions:
  - renders FN with falsey values and empty lists.
  - renders INVERSE with truthy values or each item in a list.
- Helper Expressions: switch the options.fn and options.inverse.

Use

Inverted sections match falsey values. An inverted section syntax is similar to regular sections except it begins with a caret rather than a pound. If the value referenced is falsey, the section will render. For example:

The template:

<ul>
    {{#friends}}
        </li>{{name}}</li>
    {{/friends}}
    {{^friends}}
        <li>No friends.</li>
    {{/friends}}
</ul>

And data:

{
    friends: []
}

Results in:

<ul>
    <li>No friends.</li>
</ul>

{{^expression}}

{{^EXPRESSION}}FN{{else}}INVERSE{{/key}}

Parameters

Use

`{{^EXPRESSION}}FN{{else}}INVERSE{{/key}}`