comparing properties within Typescript objects-CodePudding

searchFilteredData = [ { productId: 12345, carrierId: 3, //otherstuff } 
                       { productId: 28664, carrierId: 5, //otherstuff } ]


proposalProducts = [ 0: 12345, 1: 28664 ]

I have 2 arrays, one has a property productId that can match items in the second array. How can I perform a loop to determine which items in searchFilteredData have corresponding records in proposalProducts?

CodePudding user response：

Just use filter with includes to check if element is in array:

searchFilteredData.filter(({ productId }) => proposalProducts.includes(productId))

searchFilteredData = [ { productId: 12345, carrierId: 3 },
                       { productId: 28664, carrierId: 5 },
                       { productId: 28232, carrierId: 5 }]


proposalProducts = [ 12345, 28664 ]


inProposalProducts = searchFilteredData.filter(({ productId }) => proposalProducts.includes(productId))

console.log(inProposalProducts)

CodePudding user response：

The common method is to create a new array with matching elements using Array.prototype.filter

let items = (searchFilteredData.filter(ele => proposalProducts.includes(ele.productId) )

If you want to loop through manually, use Array.prototype.forEach or for-of loop directly.

for (let item of searchFilteredData){
   if (proposalProducts.includes(item))
      console.log(item);   //do something
}