Davidyunius

oop/index.js

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+'use strict'
+
+class Robot {
+    constructor(name, purpose){
+        this.name = name
+        this.purpose = purpose
+    }
+}
+
+class RobotFactory{
+    constructor(){}
+    static produceRobot(name, qty){
+        if (name === 'wall-e') {
+            let produce = new WallE()
+            for (let x = 0; x < qty; x++) {
+                console.log(produce.method);
+            }
+        }else if (name === 'baymax') {
+            let produce = new BayMax()
+            for (let x = 0; x < qty; x++) {
+                console.log(produce.method);
+            }
+        }else if (name === 'autobot') {
+            let produce = new AutoBot()
+            for (let x = 0; x < qty; x++) {
+                console.log(produce.method);
+            }
+        }
+    }
+}
+
+class WallE extends Robot{
+    constructor(){
+        super('Wall-E')
+        super.purpose = 'woker'
+        super.method = 'Wall-E cleans the planet'
+    }
+}
+
+class BayMax extends Robot{
+    constructor(){
+        super('BayMax')
+        super.purpose = 'medic'
+        super.method = 'Hi, I am BayMax, how may I help you?'
+    }
+}
+
+class AutoBot extends Robot{
+    constructor(){
+        super('AutoBot')
+        super.purpose = 'defender'
+        super.method = "AutoBot, let's roll!"
+    }
+}
+
+let wall_e = RobotFactory.produceRobot('wall-e', 6);
+let baymax = RobotFactory.produceRobot('baymax', 5);
+let autobot = RobotFactory.produceRobot('autobot', 3);
+
+// for (var i = 0; i < wall_e.length; i++) {
+//     wall_e[i].work()
+// }
+
+// for (var i = 0; i < baymax.length; i++) {
+//     baymax[i].heal();
+// }
+
+// for (var i = 0; i < autobot.length; i++) {
+//     autobot[i].defend();
+// }

query/query.js

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+/*
+RELEASE 0
+
+SELECT DISTINCT title, point, level, name, age, gender 
+FROM players INNER JOIN status 
+ON players.id = status.playerId order by level desc;
+*/
+
+/*
+RELEASE 1
+
+SELECT * FROM PLAYERS INNER JOIN CARDS on players.id = cards.playerId where gender='Male' limit 3;
+*/