Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                h1 Simulator Control JavaScript Plugin
br
h2 Summary
p This Plugin allows us to perform a function when a certain combination of keys is pressed.
br
h2 Uses
p This can be really useful when creating simulator.
br
h2 Documentation
p For first part. It requires two parameter. First is an array of Keys Code in Order they need to be pressed and Second is the function to be called
br
pre shortcut.add([65,87,68], functionToBeCalled);
br
p And to remove Sortcut
br
pre shortcut.remove([65,87,68]);
br
              
            
!

CSS

              
                
              
            
!

JS

              
                shortcut = {
 keys : new Object(),
 add : function(array, func){
  var hey = this;
  var counter = this.stingify(array);
  this.keys[counter] = func;
  var collect = new Array();
 document.body.addEventListener('keydown',function(e){
  if(e.keyCode===array[collect.length]){
   collect[collect.length] = e.keyCode;
  }else{
   collect = new Array();
  }
  if(collect.length===array.length){
   collect = new Array();
   hey.keys[counter]();
  }
 },false);
  
 },
 remove : function(array){
  this.keys[this.stingify(array)] = function(){
   
  };
 },
 stingify:function(array){
  var counter = '';
  for(x in array){
   if(x==0){
    counter+=array[x];
   }else{
    counter+='+'+array[x];
   }
  }
  return counter;
 }
};
shortcut.add([17,90],function(){
 console.log('undo done in');
});
              
            
!
999px

Console