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Bitovi

*variable

  • Edit on GitHub

Store a variable local to the template.

Deprecated 4.0

{{*variable}} is deprecated in favor of {{scope.vars.variable}}

*variable

A placeholder for a value that is local to the template.

<drivers-licenses {^selected}="*selectedDriver"/>
<edit-driver {driver}="*selectedDriver"/>

Use

Every template contains a context which is able to store values local to the template. Keys with * reference variables in that context.

Template variables are often used to pass data between components. <component-a> exports its propA value to the template variable *variable. This is, in turn, used to update the value of propB in <component-b>.

<component-a {^prop-a}="*variable"/>
<component-b {prop-b}="*variable"/>

Template variables are global to the template. Similar to JavaScript var variables, template variables do not have block level scope. The following does not work:

{{#each(something)}}
    <component-a {^prop-a}="*variable"/>
    <component-b {prop-b}="*variable"/>
{{/each}}

To work around this, an localContext helper could be created as follows:

stache.registerHelper("localContext", function(options) {
  return options.fn(new Map());
});

And used like:

{{#each(something)}}
    {{#localContext}}
      <component-a {^prop-a}="./variable"/>
      <component-b {prop-b}="./variable"/>
    {{/localContext}}
{{/each}}

CanJS is part of DoneJS. Created and maintained by the core DoneJS team and Bitovi. Currently 3.14.1.

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