This is a simple web page that guides learners towards making a JavaScript-based app that presents the user with an outfit they can wear based on the weather forecast from OpenWeatherMap. It's intended for potential use in the hour of code.

Unlike teeny-quiz-fun, this activity has been designed for learners with no prior exposure to HTML or CSS, and focuses solely on JavaScript.

Affordances have been added that make it easier to debug the app's code in a live-reload environment like Thimble and JS Bin.

API

For a very simple example of a minimalistic implementation of the API endpoints, see index.html.

Data Types

Functions in the API deal with forecast objects that have the following properties:

• city is a string that represents the city being forecast, e.g. "New York City".
• date is a Date object representing the date and time for which the forecast is for. It is usually within 3 hours of the current time.
• humidity is a number describing the humidity, e.g. 83. TODO: What units are these measured in?
• next is an optional property that points to another forecast object, which represents the forecast 3 hours from date. If no such forecast exists, this value will be undefined.
• temp is an object representing the temperature in different units. Use temp.c for celsius, temp.f for fahrenheit, and temp.k for kelvin.
• weather is a string describing the weather conditions. It is one of "clear", "partly cloudy", "mostly cloudy", "raining", "thunderstorming", "snowing", and "misty".

Functions

Learners are expected to implement at least one global JavaScript function that comprises the core "business logic" of the app:

getForecastOutfit(forecast)

Required. This function should determine a suggested outfit for the user to wear based on the given outfit. It must return one of the following:

• A URL string that points to an image of a suggested outfit to wear based on the given forecast, e.g. "http://example.org/summer.jpg".
• An array of URL strings, each pointing to an image of part of an outfit's ensemble.
• A jQuery instance or DOM node.

getForecastWords(forecast)

Optional. This function returns a string describing the forecasted weather conditions, e.g. "37F and cloudy". Alternatively, it can return a jQuery instance or DOM node.

Debugging

If window.DEBUG is truthy, a dat.gui-powered debug panel will be shown that allows the developer to provide a "fake" forecast to the app and manipulate it in real-time. This can also be useful for offline development.

To override the value of window.DEBUG through the URL, put debug=on or debug=off in the querystring.

Limitations

The current implementation is only localized to English and there's no easy way to use another language.

It's not easy to change the HTML, templates, or CSS for the app. Exposing more of this will be easy in JS Bin, which allows for multiple hide-able panes of HTML/JS/CSS, but it will be difficult for Thimble, which only has a single pane with no collapsable parts. This means that not overwhelming the user with unfamiliar/irrelevant details will be hard.

Development

To start the development server:

git clone https://github.com/toolness/weather-outfit-fun.git
cd weather-outfit-fun
npm install
node bin/server.js

Then visit http://localhost:3000.

This development server will regenerate weather-outfit.js and its source map each time they're requested, by examining src/config.json and using it to concatenate the source files it specifies.

Deployment

To deploy to an HTML page that only includes absolute links to its sub-resources, run node bin/export.js from the command line and pipe its output somewhere.

For example, on OS X, running node bin/export.js | pbcopy will put the resulting HTML in your clipboard, at which point you can paste it into Thimble or JS Bin.

If you want to use a different base URL for the sub-resources than the default of https://toolness.github.io/weather-outfit-fun/, you can supply it as an argument to the export script, e.g. node bin/export.js http://example.org/weather-outfit/.

Tutorial

An interactive tutorial is being worked on that guides learners through personalizing the app by learning a bit of HTML and JavaScript.

To view this tutorial, start the development server and visit http://localhost:3000/tutorial/.

The tutorial can be deployed to Thimble as follows:

1. Push the repository's gh-pages branch to GitHub.
2. Visit the tutorial on GitHub Pages.
3. Copy-paste the HTML skeleton in the middle pane to a new Thimble make.
4. Tag the new Thimble make with tutorial-https://toolness.github.io/weather-outfit-fun/tutorial/tutorial.html.
5. Save the Thimble make, ensuring that "Searchable on webmaker.org" is checked.