Guxingzhe
commented
6 years ago Why not use this grammatical sugar: attributes or methods that begin with an underscore are privatized without the need to add the keywords "private" or "#". For example:
class Animal {
_type = "human" // private attribute；
age = 21; // public attribute；
constructor(type, age) {
this._type = type;
this.age = age;
}
// private method
_privateMethod() {
console.info("this is my private method");
}
// public method
toString() {
this._privateMethod();
return '(' + this._type + ', ' + this.age + ')';
}
// _type get set function
get Type() {
return _type;
}
set Type(type) {
_type = type;
}
}
let animal = new Animal();
animal.Type // yes
// _type cannot be accessed through this, age can;
animal._type // error: private attribute
animal.age // yes
// _privateMethod cannot be accessed through this, toString can;
animal._privateMethod() // error:
animal.toString() // yesDon't you think it's more concise? There's not much difference in code style.
hax
ljharb
I would like to highlight this issue recently created in the Private Methods Proposal to discuss it also here, as IMHO it addresses in a clean and understandable way the main topics that made this other proposal to emerge.