constructor « object « Javascript Data Type Q&A

1. How to determine whether an object was created using an object literal or an Object constructor call?    stackoverflow.com

More specifically, how would you determine if a certain object was created using a literal or not?

var s1 = new String();
var s2 = ""; // Literal

var o1 = new Object();
var o2 ...

2. Don't want to use eval when instantiating object from String - help?    stackoverflow.com

I have the following legacy code that I'd like to remove eval from:

eval('view = new ' + o.base + '(o)');

view = eval(o.base).prototype.constructor.apply(o)

3. Match whitespace in Javascript regexp by object, created through RegExp constructor    stackoverflow.com

Please, look into this code. Why does creating of the same regular expression by different ways (by /regex/ literal and through RegExp constructor) cause different result? Why doesn't the second pattern ...

4. How could the length property for String be overriden    stackoverflow.com

Could someone guide me how to set my own length for a String, as in "string".length or String("string").length. Afaik, String is a descendant from Object, and the length assignment probably takes place ...

5. Array with all Instances of Objects created with the same function constructor in Javascript    stackoverflow.com

In trying to built a object with a inner propriety in the constructor function that keeps the array with all the objects created with the same constructor. I'm thinking that the best ...

6. Javascript constructor function in this variable returns error    stackoverflow.com

I have a function that I am calling the following way but it returns someVariable.clean is not a function Here is the code:

var someVariable = function() {
      ...