Change type check and the way of sending params. (#4145)

throttle.js

@@ -53,7 +53,7 @@ function throttle(func, wait, options) {
   let leading = true
   let trailing = true
 
-  if (typeof func != 'function') {
+  if (typeof func !== 'function') {
     throw new TypeError('Expected a function')
   }
   if (isObject(options)) {
@@ -61,9 +61,9 @@ function throttle(func, wait, options) {
     trailing = 'trailing' in options ? !!options.trailing : trailing
   }
   return debounce(func, wait, {
-    'leading': leading,
+    leading,
+    trailing,
     'maxWait': wait,
-    'trailing': trailing
   })
 }