This allow Handlebars to look up Backbone Model's attributes:
{{ user.address.street }}
If user is a Backbone Model this will become
user.get("address").street
And if user.get("adress") is also a Backbone Model this will be produced:
user.get("address").get("street")
Handlebars.JavaScriptCompiler.prototype.nameLookup = function(parent, name, type) {
var result = '(' + parent + ' instanceof Backbone.Model ? ' + parent + '.get("' + name + '") : ' + parent;
if (/^[0-9]+$/.test(name)) {
return result + "[" + name + "])";
} else if (Handlebars.JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
return result + "." + name + ')';
} else {
return result + "['" + name + "'])";
}
};