Is it possible to pass a JavaScript object/hash into a Handlebars helper call? I'd like to do something like this:
<label>Label here</label>
{{#textField {'id':'text_field_1', 'class':'some-class', size:30} }}{{/textField}}
<p>Help text here.</p>
Here is a jsFiddle. Currently it produces the following error
Uncaught Error: Parse error on line 3:
...bel> {{#textField {'id':'text_field_1'
----------------------^
Expecting 'CLOSE', 'CLOSE_UNESCAPED', 'STRING', 'INTEGER', 'BOOLEAN', 'ID', 'DATA', 'SEP', got 'INVALID'
Alternatively I could probably do this and split on ',', but I am not fond of the syntax:
{{#textField "'id'='text_field_1','class'='some-class',size=30"}}{{/textField}}
NOTE: I specifically do NOT want to pass data/attributes (id, class, size, etc.) into the template() method as a JSON object. I want everything in the template.
Solved. I did this:
Helper:
Handlebars.registerHelper('textField', function(options) {
var attributes = [];
for (var attributeName in options.hash) {
attributes.push(attributeName + '="' + options.hash[attributeName] + '"');
}
return new Handlebars.SafeString('<input type="text" ' + attributes.join(' ') + ' />');
});
And the template:
<label>Label here</label>
{{textField id="text_field_1" class="some-class" size="30" data-something="data value"}}
<p>Help text here.</p>
Per the documentation (bottom of the page), you can pass in a variable number of parameters to a helper method, and they will be available in options.hash (assuming "options" is a parameter to your helper method). And what's also nice about this is that you can use named parameters, and parameter order doesn't matter.