@@ -169,24 +169,34 @@ hello.apply(null, ['hey!']);
169169* ``` Function.prototype.call ``` is just syntactic sugar over apply
170170* call expects parameters as normal parameter list instead of an array
171171
172- ## partial application
172+ ## function binding
173+ 174+ * ``` Function.prototype.bind ``` has the same signature as ``` .call ```
175+ * creates a new function bound to the object and optional parameters passed in
176+ 177+ ## partial application / currying
173178
174179* call a function with less than all of it's arguments
175180* and return a function expecting the rest of the arguments
176181* this transformation of function is called currying or schonfinkelizing
177182* use when find yourself calling a function with same arguments
178183
179184``` js
185+ // ES5 way with bind
186+ var curried = add .bind (undefined , 10 );
187+ curried (5 );
188+ 189+ // old way
180190function curriedAdd (x ,y ) {
181- if (y === undefined ){
182- return function (y ){
191+ if (y === undefined ){
192+ return function (y ){
183193 return x+ y;
184194 }
185195 }
186196 return x + y;
187197}
188198
189- // or with more general curry function
199+ // old way with general curry function
190200function curry (fn ){
191201 var slice = Array .prototype .slice ; // needed because arguments is not a real Array?
192202 var storedArgs = slice .call (arguments , 1 );
@@ -197,5 +207,5 @@ function curry(fn){
197207 };
198208}
199209
200- curry (add, 6 )( 7 );
210+ curry (add, 10 )( 5 );
201211```
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