refactor: Remove "isStable" override

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,7 +3,7 @@ Thanks for your contribution!
 Please check the following to make sure your contribution follows our guideline when adding a new indicator.
 
 You can find a great example here:
-https://github.com/bennycode/trading-signals/pull/361/files
+https://github.com/bennycode/trading-signals/commit/9c4a6d02bcecdde6dbe5b568c6ec547512164364
 -->
 
 ## Checklist for new indicators

src/AC/AC.ts

@@ -28,10 +28,6 @@ export class AC extends BigIndicatorSeries {
     this.momentum = new MOM(1);
   }
 
-  override get isStable(): boolean {
-    return this.result !== undefined;
-  }
-
   override update(low: BigSource, high: BigSource): void | Big {
     const ao = this.ao.update(low, high);
     if (ao) {

src/AO/AO.ts

@@ -26,10 +26,6 @@ export class AO extends BigIndicatorSeries {
     this.long = new SMA(longInterval);
   }
 
-  override get isStable(): boolean {
-    return this.result !== undefined;
-  }
-
   override update(low: BigSource, high: BigSource): void | Big {
     const candleSum = new Big(low).add(high);
     const medianPrice = candleSum.div(2);

src/CCI/CCI.ts

@@ -31,10 +31,6 @@ export class CCI extends BigIndicatorSeries {
     this.sma = new SMA(this.interval);
   }
 
-  get isStable(): boolean {
-    return this.result !== undefined;
-  }
-
   update(candle: HighLowClose): void | Big {
     const typicalPrice = this.cacheTypicalPrice(candle);
     this.sma.update(typicalPrice);
@@ -68,10 +64,6 @@ export class FasterCCI extends NumberIndicatorSeries {
     this.sma = new FasterSMA(this.interval);
   }
 
-  override get isStable(): boolean {
-    return this.result !== undefined;
-  }
-
   override update(candle: HighLowCloseNumbers): void | number {
     const typicalPrice = this.cacheTypicalPrice(candle);
     this.sma.update(typicalPrice);

src/MAD/MAD.ts

@@ -18,10 +18,6 @@ export class MAD extends BigIndicatorSeries {
     super();
   }
 
-  override get isStable(): boolean {
-    return this.result !== undefined;
-  }
-
   override update(price: BigSource): void {
     this.prices.push(price);
 
@@ -52,10 +48,6 @@ export class FasterMAD extends NumberIndicatorSeries {
     super();
   }
 
-  override get isStable(): boolean {
-    return this.result !== undefined;
-  }
-
   override update(price: number): void {
     this.prices.push(price);
 

src/MOM/MOM.ts

@@ -26,8 +26,4 @@ export class MOM extends BigIndicatorSeries {
       this.setResult(new Big(value).minus(this.history[0]));
     }
   }
-
-  override get isStable(): boolean {
-    return this.result !== undefined;
-  }
 }

src/ROC/ROC.ts

@@ -18,10 +18,6 @@ export class ROC extends BigIndicatorSeries {
     this.interval = interval;
   }
 
-  override get isStable(): boolean {
-    return this.result !== undefined;
-  }
-
   override update(price: BigSource): Big | void {
     this.priceHistory.push(price);
     if (this.priceHistory.length <= this.interval) {