Native JavaScript extension

We can find many libraries offering new objects with advanced functionnalities.

Sometimes we have a need for a native JavaScript object that intuitively should have a method that allows it. When this does not exist, all that remains is to create your own function to which you must pass its object as arguments.

JavaScript allows native objects to be extended using prototypes. The strength of prototypes is that we manipulate the very definition of the object and any instantiated object will have new functionality. This will therefore be available at any time for any extended object simplifying the writing of the code as well as the declaration.

In these needs, I wrote my own prototypes. I decided to group them together and make a library.

Its use simply boils down to a require. From there, native objects were extended and functionality available.

Summary

Date extension

Method getDaysInMonth

Method isLastDay

Method getFirstDay

Method offsetMonth

Math extension

Method froundx

MozNamedAttrMap extension

Method find

Method findAll

NamedNodeMap extension

Method find

Method findAll

Object extension

Method getValueForPath

Please considering the following object variable :

let myObject = {
   1: {
       "name": "SUCCESS",
       "color": "fg.Sucess",
       "return": 0,
       "object": {
           "pty": "value",
           "pty2": [
               'a'
           ]
       },
       "array": [
           1,2,3
       ]
   }
};

Thanks to extension getValueForPath, you can easily obtain value for deep property doing like that :

myObject.getValueForPath('1.name');        // Return : SUCCESS
myObject.getValueForPath('1.object.pty2'); // Return : [ 'a' ]

An another way to get deep property value is to use Object prototype :

Object.getValueForPath('1.name', myObject); // Return : SUCCESS