1 files changed, 50 insertions, 0 deletions
diff --git a/anon-func.js b/anon-func.js
new file mode 100644
index 0000000..c4e3130
--- /dev/null
+++ b/anon-func.js
@@ -0,0 +1,50 @@
+/* this is an error
+function() {
+    console.log("hello");
+}
+*/
+
+// current context in this outermost scope
+var c = " foobar";
+
+// prints nothing, code doesn't execute
+(function() {
+    console.log('hello' + c);
+});
+
+// () at the end executes declared function
+// NOTICE that functions are objects, better yet, first-class objects, since
+// they can be assigned to a variable
+(function() {
+    console.log('hello' + c);
+})();
+
+// prints hello again foobar
+(function() {
+    console.log('hello again' + c);
+}).call(this);
+
+// prints hello again cruel world foobar
+(function(par1, par2) {
+    console.log('hello again' + par1 + par2 + c);
+}).apply(this, [" cruel", " world"]);
+
+// prints 7 and 13
+var f = function() { return 7; };
+var g = (function() { return 13; });
+console.log(f());
+console.log(g());
+
+(function() {
+    // "use strict" cannot be used since 'this' is an undeclared object, it
+    // exists but only for life of its scope
+    this.x = "barfoo";
+    console.log(x);
+    console.log(this.x);
+
+    (function() {
+        // we're lucky here since js searches for x in higher scopes
+        console.log(x);
+        console.log(x);
+    })();
+})();