Can someone help me create a filterStringFields function that accepts an object as input and outputs a new object containing only string-type fields? Here are some examples:
Input: { name: 'John', age: 25, city: 'New York' }
Output: { name: 'John', city: 'New York' }
Input: { isActive: true, score: 100 }
Output: {}
To begin, ensure that the input object contains only string values by checking and converting non-string values into a new Object. Utilize "Object.keys" method along with reduce to manipulate the object efficiently.
Here's an example of how it can be achieved:
const newObj = return Object.keys(obj).reduce(
(acc, rec) => {
if (typeof obj[rec] === 'string') {
return { ...acc, [rec]: obj[rec] }
}
return acc
},
{}
)
You simply need to integrate this code snippet into your function.
If you're not specifically focused on using the reduce method, you can streamline your code by utilizing Object.entries along with Object.fromEntries.
const person1 = { name: "Alice", age: 30 };
const person2 = { age: 25 };
const filterObjects = obj =>
Object.fromEntries(
Object.entries(obj).filter(([, value]) => typeof value === "number")
);
console.log(filterObjects(person1));
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