Task3

Task3/question1.js

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+// http://www.codewars.com/kata/prefill-an-array
+
+function prefill(n, v) {
+
+    if (isNaN(n) || Number(n) == NaN || n === Infinity || n === -Infinity || n < 0 || typeof(n) == 'boolean' || n % 1 != 0)
+        throw new TypeError(n + " is invalid");
+    else {
+        arr = (new Array(Number(n))).fill(v);
+    }
+    return arr;
+}

Task3/question2.js

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+// http://www.codewars.com/kata/a-function-within-a-function
+
+function always(n) {
+    return function() {
+        return n
+    }
+}

Task3/question3.js

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+// http://www.codewars.com/kata/closures-and-scopes/train/javascript
+
+function createFunctions(n) {
+    var callbacks = [];
+
+    for (let i = 0; i < n; i++) {
+        callbacks.push(function() {
+            return i;
+        });
+    }
+
+    return callbacks;
+}

Task3/question4.js

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+// http://www.codewars.com/kata/can-you-keep-a-secret
+
+function createSecretHolder(secret) {
+    return {
+        sec: secret,
+        getSecret: function() {
+            return this.sec;
+        },
+        setSecret: function(b) {
+            this.sec = b;
+        }
+    }
+}