In TypeScript, a private method is a method that can only be accessed within the class it is defined in. It cannot be accessed outside the class or by any subclasses.
Here is an example of a class in TypeScript with a private method:
class MyClass {
private myPrivateMethod(): void {
console.log("This is a private method.");
}
public myPublicMethod(): void {
console.log("This is a public method.");
// Call the private method from within the class
this.myPrivateMethod();
}
}
let myObject = new MyClass();
myObject.myPublicMethod();
In the example above, the MyClass class has a private method called myPrivateMethod(). This method can only be called from within the class itself.
The MyClass class also has a public method called myPublicMethod(). This method can be called from outside the class.
Inside the myPublicMethod() method, we can call the private method myPrivateMethod() using the this keyword. Since myPrivateMethod() is a private method, it can only be called from within the class.
When we create an instance of the MyClass class and call the myPublicMethod() method, both the public and private methods are called and their respective console logs are outputted. However, if we try to call myPrivateMethod() from outside the class, we will get a compile-time error.