How can you properly retrieve the value of x?
let x = 5
const f = (n:number) => {
let x = "Welcome";
return x * n // Referring to the first x, not the second one
}
Also, what is the accurate technical term for this action?
How can you properly retrieve the value of x?
let x = 5
const f = (n:number) => {
let x = "Welcome";
return x * n // Referring to the first x, not the second one
}
Also, what is the accurate technical term for this action?
To properly access a shadowed variable, avoid shadowing it in the first place. Consider refactoring the code by giving one of the variables a different name, usually the local one within the inner scope.
To implement this concept, one approach involves utilizing block scope in conjunction with the OR operator.
{
let x = 5
const f = (n) => {
x = x || "Welcome";
return x * n // The first occurrence of x, not the second
}
f(1)
}
Alternatively, you can set x as a default parameter for function f.
let x = 5
const f = (n, z = x)=> {
let x = "Welcome";
return z * n // The first instance of x is used, not the second
}
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