leetcode: solve problem 2648

leetcode/2648-generate-fibonacci-sequence/main.ts

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+/**
+ * const gen = fibGenerator();
+ * gen.next().value; // 0
+ * gen.next().value; // 1
+ */
+function* fibGenerator(): Generator<number, any, number> {
+    let a = 0;
+    let b = 1;
+    let iter = 0;
+    while (true) {
+        if (iter < 2) {
+            yield iter;
+            iter++;
+        } else {
+            yield a + b;
+            [a, b] = [b, a + b];
+        }
+    }
+};

leetcode/2648-generate-fibonacci-sequence/readme.md

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+# 2648. Generate Fibonacci Sequence
+
+[Leetcode](https://leetcode.com/problems/generate-fibonacci-sequence/description/)
+
+Write a generator function that returns a generator object which yields the fibonacci sequence.
+
+The fibonacci sequence is defined by the relation Xn = Xn-1 + Xn-2.
+
+The first few numbers of the series are 0, 1, 1, 2, 3, 5, 8, 13.