Modify a function's parameter type by forcefully casting it.
In the scenario displayed below:
(<number>foo)(1)
The original function definition is as follows:
function foo( v : string )
Modify a function's parameter type by forcefully casting it.
In the scenario displayed below:
(<number>foo)(1)
The original function definition is as follows:
function foo( v : string )
If you're unable to change the types of function parameters, one workaround is to type assert by casting the parameter as any
:
function fn(obj: string) {
...
}
fn(1 as any);
Alternatively, you can make the function more generic by allowing multiple types:
function fn(obj: string | number) {
...
}
fn(1);
fn("str");
Another option is to use generics to maintain flexibility in the parameter type:
function fn<T>(obj: T) {
...
}
fn(1);
fn("str");
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