zoukankan      html  css  js  c++  java
  • [TypeScript] Creating a Class in TypeScript

    Typescript classes make traditional object oriented programming easier to read and write. In this lesson we learn about class syntax, what the constructor is and some interesting variable features.

    interface Opponent {
        health: number;
        alias: string;
    }
    
    class ComicBookCharacter {
    
        private team: {
            name: string;
            members: ComicBookCharacter[]
        };
    
        static createAndAssignTeam(teamName: string, members: ComicBookCharacter[]) {
            let team = {
                name: teamName,
                members: members
            };
    
            members.forEach((member)=>{
                member.team = team;
            })
        }
    
        constructor(public alias: string,
                    public health: number,
                    public strength: number,
                    private secretIdentity: string) {
    
        }
    
        getTeamName(){
            console.log(`${this.alias} is from ${this.team.name}`);
            return this.team.name;
        }
    
        attackFunc(opponent: Opponent, attackWith) {
            opponent.health -= attackWith;
            console.log(`${this.alias} attacked ${opponent.alias}, who's health = ${opponent.health}`);
            return opponent.health;
        }
    
        getSecretIdentity() {
            if (this.secretIdentity) {
                console.log(`${this.alias} is ${this.secretIdentity}`);
            } else {
                console.log(`${this.alias} has no secret identity`);
            }
        }
    }
    
    const Sparky = new ComicBookCharacter("Sparky", 6700, 3000, "Thunder");
    const Rainer = new ComicBookCharacter("Rainer", 7500, 3400, "Water");
    
    
    ComicBookCharacter.createAndAssignTeam('Eevee', [Sparky,Rainer]);
    Sparky.getTeamName();

    To review, we've learned about access modifiers and the difference between public and private. The constructor is run when the classinstance is initialized, and the shorthand for setting class properties allows us to write less code. We've learned that static properties can only be referenced from the class, not the instance, and how staticproperties have access to an instances private properties.

  • 相关阅读:
    完全二分图生成树计数
    [luogu 1880]石子合并
    [vijos 1770]大内密探
    母函数入门笔记(施工中…
    【补】20160816训练记录
    20160819训练记录
    20160817训练记录
    POJ 2228 naptime
    POJ 3585 Accumulation Degree
    POJ 2182 Lost Cows
  • 原文地址:https://www.cnblogs.com/Answer1215/p/5958286.html
Copyright © 2011-2022 走看看