Creating JS object ?

[Kuzyo]

Hi everyone.

I’m new to JS and programming, and have question about creating JS object. For example I need to create object with set of properties. Here two variants which is better or they both wrong. Thanks for help.

first:

//field odject
var $field = $(“#field”);
var field = {
width: $field.width(),
offsetTop: $field.offset().top,
offsetLeft: $field.offset().left,
offsetRight: $field.offset().left + $field.width(),
offsetBottom: $field.offset().top + $field.height()
};

second:

function field($sel){

//field odject
var $field = $($sel);
var offset = $field.offset();
var field = {
width: $field.width(),
offsetTop:offset.top,
offsetLeft: offset.left,
offsetRight: offset.left + $field.width(),
offsetBottom: offset.top + $field.height()
};

return field;

}

[Subash]

It depends on what you are trying to achieve. I prefer the first method for plain objects and second if i need to do some calculations before exposing the object.

[Kuzyo]

As for me the second is more understandable. I can simple receive properties by **field.offsetTop** without needing call a function **var field = new field(“#field”);**

[Author]

Posts