up

1-js/06-advanced-functions/03-closure/8-make-army/_js.view/source.js

@@ -0,0 +1,22 @@
+function makeArmy() {
+  let shooters = [];
+
+  let i = 0;
+  while (i < 10) {
+    let shooter = function() { // shooter function
+      alert( i ); // should show its number
+    };
+    shooters.push(shooter);
+    i++;
+  }
+
+  return shooters;
+}
+
+/*
+let army = makeArmy();
+
+army[0](); // the shooter number 0 shows 10
+army[5](); // and number 5 also outputs 10...
+// ... all shooters show 10 instead of their 0, 1, 2, 3...
+*/