Question

i am new in javascript and i have to understand an appcelerator project. in appcelerator we need to code in java script.

var winForm = (function() {

    var API = {};

    API.list = [
        {
            title:'title1', hasChild:true, color:'#9B0B0B',font:'font'
        },
        {
            title:'title2', hasChild:true, color:'#9B0B0B',font:'font'
        },
        {
            title:'title3', hasChild:true, color:'#9B0B0B',font:'font'
        }
    ];//end winList

    return API;
})(); //end 
module.exports = winForm;

1. what type of function is this?
2. what is this ‘{}’ initialization?
3. what we are doing in API.list?
4. how to call this function and list.
5. what is this exports?

Sorry for asking so much questions in one post.

Answer 1

1. It’s an anonymous function declared to create scope.
2. It creates an empty object. It has no properties, but it is defined.
3. list is being set to an array (that’s the [ ... ] notation) consisting of 3 objects. Each object has 4 properties, title, hasChild, color, and font, with the respective values.
4. You cannot call this function explicitly, it’s declared, run, and the result is stored in the variable winForm (which is then stored in module.exports).
5. Some property on the module object, whatever that is.

You should take the time to learn more about how javascript works. I recommend http://javascript.info/ as a great ramp up.