Passing an array to jade file

Question

Passing an array to jade file

so this is my problem:

I have this render function somewhere in my express code:

    function renderWithData(arrayOfEvents, res) {
    res.render("index", {
        locals: {
            pageTitle: "Wochenplaner",
            events: arrayOfEvents
        }
    });
}

it passes index.jade a variable called events. Now i want to parse this variable inside of jade, for example like this:

- if(locals.events[0] == true) alert("Bla");

But express is telling me that locals.events is undefined. How do i correctly pass a variable to that kinda "rendering-javascript"?

javascript
node.js
express
jade

Answer 1

Okay, i'm a noob!

In my implementation this if-construct was cyceld through like this:

for(var i = 0; i < number; i++) {
if(locals.events[i].time == 7) alert("bla");
}

What i didn't consider was, that locals.events[i].time could be "undefined" because there simply wasn't a date at that index in that array. So i fixed this by adding the following:

if(typeof locals.events[i].time !== "undefined" && locals.events[i].time == 7) alert("bla");

The right way to access and pass an js-variable from node-code to jade is to access it through the object. If this is my object:

locals: {
        pageTitle: "Wochenplaner",
        events: arrayOfEvents
    }

Then i would access it in Jade like this:

locals.events[index].property

Sorry for wasting your time :)