1 files changed, 28 insertions, 0 deletions
diff --git a/_includes/scripts/lib/throttle.js b/_includes/scripts/lib/throttle.js
new file mode 100644
index 0000000..2add23c
--- /dev/null
+++ b/_includes/scripts/lib/throttle.js
@@ -0,0 +1,28 @@
+(function() {
+  window.throttle = function(func, wait) {
+    var args, result, thisArg, timeoutId, lastCalled = 0;
+
+    function trailingCall() {
+      lastCalled = new Date;
+      timeoutId = null;
+      result = func.apply(thisArg, args);
+    }
+    return function() {
+      var now = new Date,
+        remaining = wait - (now - lastCalled);
+
+      args = arguments;
+      thisArg = this;
+
+      if (remaining <= 0) {
+        clearTimeout(timeoutId);
+        timeoutId = null;
+        lastCalled = now;
+        result = func.apply(thisArg, args);
+      } else if (!timeoutId) {
+        timeoutId = setTimeout(trailingCall, remaining);
+      }
+      return result;
+    };
+  };
+})();