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:
    toString
    React系列,jsx
    React系列,初识
    如何在数据库中存储一棵树
    Linux-gate.so技术细节
    主引导记录MBR/硬盘分区表DPT/主分区、扩展分区和逻辑分区/电脑启动过程
    8259A工作原理描述
    汇编指令大全
    汇编条件判断整理(JCC,CMP/TEST的实现)
    【汇编】字符串处理指令 stosb、lodsb、movsw、scasb、rep
  • 原文地址:https://www.cnblogs.com/Answer1215/p/5958286.html
Copyright © 2011-2022 走看看