I am currently working with two objects, objA and objB.
There is a function that I have, which takes a value from objB and a key from objA as arguments.
const objA = {
a:"a",
b:"b"
}
const objB = {
a:"a",
b:"b"
}
checkValues = (type:string,key:keyof typeof objA)=>{
return objA[key] === type;
}
checkValues("A",objA.a)
However, I am encountering a type error message stating:
Argument of type 'string' is not assignable to parameter of type '"a" | "b"'
By defining your function in this way, it can only check the object's entries (so 'a' or 'b'), rather than calling the function with objA.a, which refers to the value of the property a on the object.
To address this, you can:
// Call the function and pass only 'a' or 'b'
checkValues("A", 'a');
checkValues("A", 'b');
// Declare object properties with specific types using interfaces:
interface MyObj {
a: 'a' | 'b';
b: 'a' | 'b';
}
const objA: MyObj = {
a:"a",
b:"b"
}
const objB: MyObj = {
a:"a",
b:"b"
}
Since your requirements were not clearly defined, this is a suggestion that might be helpful. I hope it assists you!
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