remove hide and show

These are broken by design and better done with adding and removing
classes. Classes are a more flexible approach that can be styled easier.

index.js

@@ -28,7 +28,7 @@ function dom(selector, context) {
   }
 
   // array
-  if (Array.isArray(selector)) {
+  if (selector instanceof Array) {
     return new List(selector);
   }
 
@@ -235,32 +235,6 @@ proto.html = function(val){
   return el.innerHTML;
 };
 
-proto.hide = function() {
-  this.forEach(function(item) {
-    var save = item.style.display;
-    if (save) {
-      item.setAttribute('data-olddisplay', save);
-    }
-    item.style.display = 'none';
-  });
-  return this;
-};
-
-proto.show = function() {
-  this.forEach(function(item) {
-    var old = item.getAttribute('data-olddisplay');
-    item.removeAttribute('data-olddisplay');
-
-    // use default display for element
-    if (!old || old === 'none') {
-      old = '';
-    }
-
-    item.style.display = old;
-  });
-  return this;
-};
-
 /**
  * Bind to `event` and invoke `fn(e)`. When
  * a `selector` is given then events are delegated.

test/css.js

@@ -55,23 +55,3 @@ test('.css(obj)', function() {
     assert('absolute' == list[0].style.position);
 });
 
-test('.hide()', function() {
-    var div = dom('<div></div>');
-    div.hide();
-    assert('none' == div[0].style.display);
-});
-
-test('.show()', function() {
-    var div = dom('<div style="display:none">f</div>');
-    div.show();
-    assert.equal('', div[0].style.display);
-});
-
-test('.show() - preserve previous', function() {
-    var div = dom('<div style="display:table"></div>');
-    div.hide();
-    assert('none' == div[0].style.display);
-    div.show();
-    assert('table' == div[0].style.display);
-});
-