A guide on implementing JSON data projection with TypeScript

Question

A guide on implementing JSON data projection with TypeScript

{
    "ClaimType": ["The 'Claim Type' should have a minimum length of 4 characters. You have only entered 2 characters."],
    "ClaimValue": ["The 'Claim Value' should have a minimum length of 4 characters. You have only entered 1 character."],
    "Description": ["The 'Description' should have a minimum length of 10 characters. You have only entered 6 characters."]
}

When retrieving data from a Web API, the response looks like the example above. How can I use TypeScript to format the data as shown below?

Expected output as an array of strings:

["The 'Claim Type' should have a minimum length of 4 characters. You have only entered 2 characters.",
"The 'Claim Value' should have a minimum length of 4 characters. You have only entered 1 character.",
"The 'Description' should have a minimum length of 10 characters. You have only entered 6 characters."]

angular typescript

Answer 1

Answer №1

If the starting item is kept in the variable data.

Looping through keys in the data object,
 mapping the values of each key,
 and reducing them into a single array.

Answer 2

If the starting item is kept in the variable data.

Looping through keys in the data object,
 mapping the values of each key,
 and reducing them into a single array.

Answer 3

Answer №2

Instead of using Object.keys, you can opt for directly utilizing Object.values:

Object.values(dataSet).reduce((accumulator, current) => [...accumulator, ...current], [])

Another approach is:

[].concat(...Object.values(dataSet));

Answer 4

Instead of using Object.keys, you can opt for directly utilizing Object.values:

Object.values(dataSet).reduce((accumulator, current) => [...accumulator, ...current], [])

Another approach is:

[].concat(...Object.values(dataSet));

Answer 5

Answer №3

To convert your keys data into an array, you can use the following example.

const data ={
    "ClaimType": ["The 'Claim Type' must be at least 4 characters long. You have entered only 2 characters."],
    "ClaimValue": ["The 'Claim Value' must be at least 4 characters long. You have entered only 1 character."],
    "Description": ["The 'Description' must be at least 10 characters long. You have entered only 6 characters."]
}
const keyArray = Object.keys(data)
    .map(key => data[key])
    .reduce((acc, curr) => [...acc, ...curr], []);
console.log(keyArray);

Answer 6

To convert your keys data into an array, you can use the following example.

const data ={
    "ClaimType": ["The 'Claim Type' must be at least 4 characters long. You have entered only 2 characters."],
    "ClaimValue": ["The 'Claim Value' must be at least 4 characters long. You have entered only 1 character."],
    "Description": ["The 'Description' must be at least 10 characters long. You have entered only 6 characters."]
}
const keyArray = Object.keys(data)
    .map(key => data[key])
    .reduce((acc, curr) => [...acc, ...curr], []);
console.log(keyArray);

A guide on implementing JSON data projection with TypeScript

Answer №1

Answer №2

Answer №3

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