for loop

last-endcode · last-endcode · commit 72e6b3994144 · 2020-10-11T17:23:15.000+07:00
diff --git a/20_for_loop.js b/20_for_loop.js
@@ -0,0 +1,28 @@
+// for loop
+
+for (let i = 0; i < 10; i++) {
+  console.log(i);
+}
+
+// Step 0: i = 0;
+// Step 1: i < 10 true,
+// Step 2:executing the block
+// Step 3: i++ = 1
+// Step 4: i < 10 true,
+// Step 5: executing the block
+// ...
+// ...
+// ...
+// ...
+// Step X - i++ = 9;
+// i < 10 true,
+// executing the block
+// i++ = 10
+//  10 < 10 is false
+//  get out of the loop
+
+console.log('example again');
+console.log();
+for (let number = 20; number >= 10; number--) {
+  console.log('and number is ' + number);
+} // 20 ...10
