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JavaScript

Posted by brandonlind2
brandonlind2
7,823 Points

How do you select different specific properties of an object in the composition pattern?

/* how can I selectively pick 
which properties I want to use 
from two or more objects to 
create a new object. ? */

Let mammal ={
          metabolismType: "warm blooded" ,
         birthType: "live birth",
         hasHair: true,
};

Let reptile={
     metabolismType: "cold blooded",
     birthType: "lays eggs",
     hasScales: true
};


Let dog= Object.create(mammal);
dog.legs=4;
dog.diet="carnivore";


Let cat=Object.assign({},dog);
cat.diet="Strict carnivore"; 

Let snake= Object.assign({}, reptile, {legs, diet}= cat);
snake.legs=0;

Let viper= Object.create(snake);
Viper.hasVenom=true;
/**I tried destructer it but that doesn't work and in 
hind sight I can see why because I would 
be passing multiple varibles as one argument. 
I'm sure I can destructer outside of the assign
 method then pass those 
variables in but that seems tedious 
and like I would be 
variable polluting so I sure there is a better way.
**/
Let platypus= Object.assign({}, mammal,
{birthType,hasVenom}=viper);