Current Dev State

static/js/ketcher2/node_modules/timers-ext/throttle.js

@@ -0,0 +1,33 @@
+'use strict';
+
+var callable     = require('es5-ext/object/valid-callable')
+  , validTimeout = require('./valid-timeout')
+
+  , apply = Function.prototype.apply;
+
+module.exports = function (fn, timeout) {
+	var isScheduled = false, context, args, run;
+	callable(fn);
+	timeout = validTimeout(timeout);
+	run = function () {
+		var currentContext = context, currentArgs = args;
+		if (!args) {
+			isScheduled = false;
+			return;
+		}
+		context = null;
+		args = null;
+		setTimeout(run, timeout);
+		apply.call(fn, currentContext, currentArgs);
+	};
+	return function () {
+		if (isScheduled) {
+			context = this;
+			args = arguments;
+			return;
+		}
+		isScheduled = true;
+		setTimeout(run, timeout);
+		apply.call(fn, this, arguments);
+	};
+};