Initial commit

node_modules/underscore/modules/debounce.js

@@ -0,0 +1,35 @@
+import restArguments from './restArguments.js';
+import delay from './delay.js';
+
+// When a sequence of calls of the returned function ends, the argument
+// function is triggered. The end of a sequence is defined by the `wait`
+// parameter. If `immediate` is passed, the argument function will be
+// triggered at the beginning of the sequence instead of at the end.
+export default function debounce(func, wait, immediate) {
+  var timeout, result;
+
+  var later = function(context, args) {
+    timeout = null;
+    if (args) result = func.apply(context, args);
+  };
+
+  var debounced = restArguments(function(args) {
+    if (timeout) clearTimeout(timeout);
+    if (immediate) {
+      var callNow = !timeout;
+      timeout = setTimeout(later, wait);
+      if (callNow) result = func.apply(this, args);
+    } else {
+      timeout = delay(later, wait, this, args);
+    }
+
+    return result;
+  });
+
+  debounced.cancel = function() {
+    clearTimeout(timeout);
+    timeout = null;
+  };
+
+  return debounced;
+}