javascript class
class ClassMates{
constructor(name,age){
this.name=name;
this.age=age;
}
displayInfo(){
return this.name + "is " + this.age + " years old!";
}
}
let classmate = new ClassMates("Mike Will",15);
classmate.displayInfo(); // result: Mike Will is 15 years old!javascript create class
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
present = () => { //or present(){
console.log(`Hi! i'm ${this.name} and i'm ${this.age} years old`)
}
}
let me = new Person("tsuy", 15);
me.present();
// -> Hi! i'm tsuy and i'm 15 years old.how to create a class javascript
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
displayInfo() {
return this.name + ' is' + this.age + " years old";
}
}
const Anthony = new Person('Anthony', 32);javascript class
// Improved formatting of Spotted Tailed Quoll's answer
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
introduction() {
return `My name is ${name} and I am ${age} years old!`;
}
}
let john = new Person("John Smith", 18);
console.log(john.introduction());javascript classes
//use classes by initiating one like so:
class MyClass {
constructor(FirstProperty, SecondProperty, etcetera) {
//The constructor function is called with the new class
//instance's parameters, so this will be called like so:
//var classExample = new MyClass("FirstProperty's Value", ...)
this.firstProperty = FirstProperty;
this.secondProperty = SecondProperty;
}
//creat methods just like functions:
method(Parameters) {
//Code Here
}
//getters are properties that are calculated when called, versus fixed
//variables, but still have no parenthesis when used
get getBothValues()
{
return [firstProperty, secondProperty];
}
}
//Note: this is all syntax sugar reducing the boilerplate versus a
// function-defined object.javascript class example
// to create a class named 'LoremIpsum':
class LoremIpsum {
// a function that will be called on each instance of the class
// the parameters are the ones passed in the instantiation
constructor(a, b, c) {
this.propertyA = a;
// you can define default values that way
this.propertyB = b || "a default value";
this.propertyC = c || "another default value";
}
// a function that can influence the object properties
someMethod (d) {
this.propertyA = this.propertyB;
this.propertyB = d;
}
}
// you can then call it
var loremIpsum = new LoremIpsum ("dolor", null, "sed");
// at this point:
// loremIpsum = { propertyA: 'dolor',
// propertyB: 'a default value',
// propertyC: 'sed' }
loremIpsum.someMethod("amit");
// at this point:
// loremIpsum = { propertyA: 'a default value',
// propertyB: 'amit',
// propertyC: 'sed' }
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