Data update

Task/Memory-layout-of-a-data-structure/JavaScript/memory-layout-of-a-data-structure.js

@@ -0,0 +1,68 @@
+const Status = {
+  OFF: 'OFF',
+  ON: 'ON'
+};
+
+class RS232Pins9 {
+  constructor() {
+    this.Pin = {
+      carrierDetect: { pinNumber: 1, status: Status.OFF, name: 'carrierDetect' },
+      receivedData: { pinNumber: 2, status: Status.OFF, name: 'receivedData' },
+      transmittedData: { pinNumber: 3, status: Status.OFF, name: 'transmittedData' },
+      dataTerminalReady: { pinNumber: 4, status: Status.OFF, name: 'dataTerminalReady' },
+      signalGround: { pinNumber: 5, status: Status.OFF, name: 'signalGround' },
+      dataSetReady: { pinNumber: 6, status: Status.OFF, name: 'dataSetReady' },
+      requestToSend: { pinNumber: 7, status: Status.OFF, name: 'requestToSend' },
+      clearToSend: { pinNumber: 8, status: Status.OFF, name: 'clearToSend' },
+      ringIndicator: { pinNumber: 9, status: Status.OFF, name: 'ringIndicator' }
+    };
+  }
+
+  getPin(pinNumber) {
+    for (const key in this.Pin) {
+      if (this.Pin[key].pinNumber === pinNumber) {
+        return this.Pin[key].status;
+      }
+    }
+    throw new Error(`Unknown pin number: ${pinNumber}`);
+  }
+
+  getPinByName(name) {
+    for (const key in this.Pin) {
+      if (this.Pin[key].name === name) {
+        return this.Pin[key].status;
+      }
+    }
+    throw new Error(`Unknown pin name: ${name}`);
+  }
+
+  setPin(pinNumber, status) {
+    for (const key in this.Pin) {
+      if (this.Pin[key].pinNumber === pinNumber) {
+        this.Pin[key].status = status;
+      }
+    }
+  }
+
+  setPinByName(name, status) {
+    for (const key in this.Pin) {
+      if (this.Pin[key].name === name) {
+        this.Pin[key].status = status;
+      }
+    }
+  }
+
+  displayPinStatus() {
+    for (const key in this.Pin) {
+      console.log(`${this.Pin[key].name.padEnd(29)} has status ${this.Pin[key].status}`);
+    }
+  }
+}
+
+// Example usage:
+const plug = new RS232Pins9();
+console.log(plug.getPinByName('receivedData'));
+plug.setPin(2, Status.ON);
+console.log(plug.getPinByName('receivedData'));
+plug.setPinByName('signalGround', Status.ON);
+plug.displayPinStatus();