Handlebars.js条件语句{{#if expression}}…{{else}}…{{/ iif}}错误

Question

I am trying to implement Handlebars templating logic to show a "logged in" navbar (with a user's first name and profile image) if the user is authenticated or a "logged out" navbar if the user is not authenticated.

To do this, I am using the handlebars.js conditional statement:

{{#if login_status}}
     *logged in navbar html code*
{{else}}
     *logged out navbar html code*
{{/if}}

I am also using a helper login_status.js that returns true if authenticated and false is not authenticated, based on the existence of a user's ID. My helper code looks like this:

module.exports = function(l) {
    if (l.data.root.id === undefined) {
        console.log('user is logged out');
        return false;
    } else {
        console.log('user is logged in: ', l.data.root.id);
        return true;
    }
};

However, this does not work, and it is always returning the {{else}} statement, meaning that the user is not authenticated.

Is there a better way of implementing this logic? Is the helper code incorrect? Is the handlebars {{#if}} expression incorrect?

Any help is appreciated.

Thanks!

Jesse

Answer 1

phkavitha trying to say is that you can use (login_status function) as a property(getter) instead of a helper.

you can say:

var template = Handlebars.compile([your handlebars template]);
var html = template({
     ...
     get login_status() {
        return require('login_status.js')(l);
     }, 
     ...
})