bug fix

docs/interpreter.html

@@ -86,7 +86,7 @@ <h2 id="let-s-get-started-">Let’s get started!</h2>
 
             </div>
 
-            <div class="content"><div class='highlight'><pre>[<span class="hljs-built_in">String</span>,<span class="hljs-built_in">Array</span>,<span class="hljs-built_in">Number</span>,<span class="hljs-built_in">Object</span>,<span class="hljs-built_in">RegExp</span>,<span class="hljs-built_in">Date</span>,s,_,XRegExp,<span class="hljs-built_in">Function</span>].map(v=&gt;<span class="hljs-built_in">Object</span>.getOwnPropertyNames(v).map((x,y)=&gt;v.prototype[<span class="hljs-built_in">String</span>.fromCharCode(y+<span class="hljs-number">248</span>)]=v.prototype[x]));</pre></div></div>
+            <div class="content"><div class='highlight'><pre>[<span class="hljs-built_in">String</span>,<span class="hljs-built_in">Array</span>,<span class="hljs-built_in">Number</span>,<span class="hljs-built_in">Object</span>,<span class="hljs-built_in">RegExp</span>,<span class="hljs-built_in">Date</span>,s,_,XRegExp,<span class="hljs-built_in">Function</span>].map(v=&gt;<span class="hljs-built_in">Object</span>.getOwnPropertyNames(v.prototype).map((x,y)=&gt;v.prototype[<span class="hljs-built_in">String</span>.fromCharCode(y+<span class="hljs-number">248</span>)]=v.prototype[x]));</pre></div></div>
 
         </li>
 

interpreter.js

@@ -10,7 +10,7 @@
 math.import(numbers,{wrap:true,silent:true});
 
 //prototype-based function aliasing
-[String,Array,Number,Object,RegExp,Date,s,_,XRegExp,Function].map(v=>Object.getOwnPropertyNames(v).map((x,y)=>v.prototype[String.fromCharCode(y+248)]=v.prototype[x]));
+[String,Array,Number,Object,RegExp,Date,s,_,XRegExp,Function].map(v=>Object.getOwnPropertyNames(v.prototype).map((x,y)=>v.prototype[String.fromCharCode(y+248)]=v.prototype[x]));
 //object-based function aliasing
 [math,String,Array,Number,Object,JSON,RegExp,XRegExp,Date,_,s,window,Function].map(v=>Object.getOwnPropertyNames(v).map((x,y)=>v[String.fromCharCode(y+248)]=v[x]));
 //function alias helper: use as `alias(Array,METHOD_NAME_STRING)`