CODEWITHSUNDEEP
javascriptarraysreactjsecmascript-6es6-map
Muhammad Nabeel
Muhammad Nabeel

Reputation: 109

Return fields by comparing to array of objects using Map Filter

Try to return field of array1 and another field of array2, on comparison.

I have two array of objects (client and customer). I want to return client id and customer name where customer id is equal to client id.For this purpose I want to use map,filter,but can't figure out how can I use here below is my try,

       let clientcontract=this.state.addclient.filter(client=>{
        return(
            this.state.customer.filter(cust=>{
                return (
                    cust.id===client.id  // comparing customer and client id
                )
            })
        )
    });

This approach is used to get the field where both id of customer and client are same but didn't know how I can get customer name and client id and return in client contract, as I am using filter first time so facing problem in it.

Upvotes: 3

Views: 482

Answers (1)

kukkuz
kukkuz

Reputation: 42352

You can use some() function inside the filter() function. And finally to get the customer name, use a map() function - see below:

let clientcontract=this.state.customer.filter(cust => {
    return this.state.addclient.some(client => {
        return cust.id === client.id  // comparing customer and client id
    });
}).map(cust => cust.name);

Upvotes: 1

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