How to modify a value in array of object's based on other object

Question

i have an object as :

let sample = {cat: 10 , dog: 50 , snake: 25};

I have the array of object as :

let petarray = [
    {name: 'newcat' , quantity: 20},
    {name: 'oldcat' , quantity: 15},
    {name: 'razordog' , quantity: 10}
];

May I know how can I modify the petarray quantity such that if petarray[allindexes].name includes any of sample , then quantity = quantity * (respective number of sample )

for eg: petarray[0].name includes cat , the quantity should be modified as 20*(10)

any help on how to achieve is much appreciated ,TIA (hope it is clear)

• please let me know for any more info or on what i can do to improve about this result

Answer 1

you can try this,

let sample = {cat: 10 , dog: 50 , snake: 25};
let petarray = [{name: 'newcat' , quantity: 20},{name: 'oldcat' , quantity: 15},{name: 'razordog' , quantity: 10}];
let sampleArrayKeys = Object.keys(sample)
petarray = petarray.map((p) =>{
 const key = sampleArrayKeys.find(sak => p.name.includes(sak))
 if (key) {
  p.quantity *= sample[key]
 }
 return p
})

console.log(petarray)