zlatkov · March 11, 2021 12:53 · Mar 11, 2021
diff --git a/throwGenerator.js b/throwGenerator.js
@@ -0,0 +1,30 @@
+function* makeFibonacciSequenceGenerator(endIndex = Infinity) {
+    let previousNumber = 0;
+    let currentNumber = 1;
+    let skipCount = 0;
+
+    try {
+      for (let currentIndex = 0; currentIndex < endIndex; currentIndex++) {
+          if (skipCount === 0) {
+              skipCount = yield currentNumber;
+              skipCount = skipCount === undefined ? 0 : skipCount;
+          } else if (skipCount > 0){
+              skipCount--;
+          }
+
+          let nextNumber = currentNumber + previousNumber;
+          previousNumber = currentNumber;
+          currentNumber = nextNumber;
+      }
+    } catch(err) {
+    	console.log(err.message); // will print ‘External throw’ on the fourth iteration.
+    }
+}
+
+let fibonacciSequenceGenerator = makeFibonacciSequenceGenerator(50);
+
+console.log(fibonacciSequenceGenerator.next(1).value);
+console.log(fibonacciSequenceGenerator.next(3).value);
+console.log(fibonacciSequenceGenerator.next().value);
+fibonacciSequenceGenerator.throw(new Error('External throw'));
+console.log(fibonacciSequenceGenerator.next(1).value); // undefined will be printed since the generator is done.