How to create an Object in the Javascript?

In this tutorial, We are going to understand what is Object and how we can create Objects in the javascript.

What is Object?
An object is a collection of properties, and a property is an association between a name (or key) and a value. A property’s value can be a function, in which case the property is known as a method.

Let’s take an example, Suppose we have a Coffee cup. It has properties like the blue in color, hot in nature, etc. So let’s convert this real life object into the computer language.

Open the Cloud9 Online  Editor . (It’s a online code editor available online.).

//Start with 
var coffeeObject = {

};

Now we write the properties for it.

var coffeeObject = {
   color : 'blue',
   plateType : 'Flat',
   isHot : true,
   temperatureInC : '96',
};

An Object can have method associated, Let’s have function/method that can be used to convert the temperature in C to F and attached to our coffeeObject.

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var coffeeObject  = {
     color  : 'blue',
     plateType : 'Flat',
     isHot : true,
     temperatureInC : '96',
     convertIntoF : function(coffeeObject.temperatureInC){
         console.log('Temperature in C'+coffeeObject.temperatureInC);
         temperatureInF =  coffeeObject.temperatureInC× 9/5 + 32;
         console.log('Temperature in F'+temperatureInF);
    
     }
 };
 
 console.log("Cofee Mug Color :- "+ coffeeObject.color);
 console.log("Cofee plateType  :- "+ coffeeObject.plateType);
 console.log("Cofee isHot  :- "+ coffeeObject.isHot);
 
 coffeeObject.convertIntoF();
 

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To access the Object key, we have to use the dot pattern. e.g object.key.
Please note you can also access the object key’s value by

console.log(coffeeObject['color']);

That’s all folks in the next tutorial we are going to learn more about the object oriented programming in javascript.

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