To do method overloading in TypeScript, we can add multiple signatures for the same method.
For instance, we write
class TestClass {
someMethod(stringParameter: string): void;
someMethod(numberParameter: number, stringParameter: string): void;
someMethod(stringOrNumberParameter: any, stringParameter?: string): void {
if (stringOrNumberParameter && typeof stringOrNumberParameter == "number") {
//...
} else {
//...
}
}
}
to add the someMethod in TestClass that has multiple signatures.
We specify all the possible signatures for the method by adding the parameters and their types for each one.
And then we check the values of the parameters with if statements before we do anything with them.
