js static methods
class Foo(){ static methodName(){ console.log("bar") }}js static methods
class Foo(){ static methodName(){ console.log("bar") }}get static methods of class javascript
class Hi {
constructor() {
console.log("hi");
}
my_method(){}
static my_static_method() {}
}
function getStaticMethods(cl) {
return Object.getOwnPropertyNames(cl)
}
console.log(getStaticMethods(Hi))
// => [ 'length', 'prototype', 'my_static_method', 'name' ]javascript class static method
// *** JS Class STATIC method ***
class Animal {
sayHello() {
return `${this.constructor.greeting}! I'm ${this.name}!`;
}
}
class Cat extends Animal {
constructor(name) {
super(); // connects parent to child/constructor
this.name = name; //=> need this line otherwise name undefined
}
static greeting = 'Feed me';
}
class Dog extends Animal {
constructor(name) {
super();
this.name = name; // same output type as above
}
static greeting = 'Sigh';
}
const run = document.getElementById("run");
run.addEventListener('click', () => {
let Garfield = new Cat('Garfield');
let Snoopy = new Dog('Snoopy');
console.log(Garfield.sayHello());
console.log(Snoopy.sayHello());
})
// output = Feed me! I'm Garfield! Sigh! I'm Snoopy!js class static
class ClassWithStaticMethod {
static staticMethod() {
return 'static method has been called.';
}
}
console.log(ClassWithStaticMethod.staticMethod());
// expected output: "static method has been called."Copyright © 2021 Codeinu
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