CODEWITHSUNDEEP
javascripthandlebars.jsexpressionpartials
geierwally
geierwally

Reputation: 97

How can i add expressions to handlebars partials parameters

How can i add expressions to partials parameters? I want to do something like that:

{{> myPartial greeting=(i18n.greeting + "my text") }}

Upvotes: 2

Views: 964

Answers (2)

scrodrig
scrodrig

Reputation: 79

That depends in how your configure the server options with nodeJS I configured the functions in res.locals (Version Express Over 4.0) with a '__' expression so in the example look like this

{{> myPartial greeting=(i18n 'greeting')}}

Your JSON file in locales should have this key and it'd be magic...

By the way to concat your key with any string should be this way

{{> myPartial greeting=(i18n 'Hello %s', 'Marcus')}}

I hope you find this useful..

Upvotes: 0

76484
76484

Reputation: 8993

The Handlebars documentation has a section on subexpressions. It tells us that the way to pass the results of inner helper as the argument to outer helpers is done as follows:

{{> myPartial greeting=(i18n 'greeting') }}

However, it looks from your question that you might be trying to concatenate some string values into a single greeting parameter for your partial. If this is the case, you will need to create (or import) a helper that will concatenate strings for you and then apply this helper as another subexpression. The result would look like the following:

{{> myPartial greeting=(concat (i18n greeting) 'my text') }}

The required helper could be done as follows:

Handlebars.registerHelper('concat', function () {
    return Array.prototype.slice.call(arguments, 0, -1).join('');
});

Upvotes: 2

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