gistfile1.js

Handlebars.registerHelper('short_string', function(context, options){
    //console.log(options);
    var maxLength = options.hash.length || 100;
    var trailingString = options.hash.trailing || '';
    if(context.length > maxLength){
        return context.substring(0, maxLength) + trailingString;
    }
    return context;
});


/**
 * usages (handlebars)
 * {{short_string this}}
 * {{short_string this length=150}}
 * {{short_string this length=150 trailing="---"}}
**/