Tag Archives: jquery

Javascript Libraries Popularity

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JavaScript and Market Share?!

It’s kind of strange to speak about JavaScript libraries and market share, so lets called it “popularity”. Have you ever been interested on which is the most famous JS library.

I’d guess everybody has the answer in his head, right? jQuery is becoming for the JS community something like Google for the web or IE6 on the browser’s market in the beginning of the century. How odd?!

However here’s a short list of who’s first.

1. Robert Nyman’s poll:

Note: original poll page’s here.

Clear enough jQuery rocks. As I personally use jQuery I still think that its success is based on his easy to start nature. However lets see another result chart.

2. Chris Coyier from http://css-tricks.com is showing almost the same result:

Note: original poll can be found here.

3. Finally Polldaddy’s hosting a poll, where the results are even more interesting.

Polldaddy

Note: original source of the poll.

From these results I get more surprised not so much from the jQuery big advantage, but more from YUI. It’s a really very very powerful JavaScript library, perhaps misunderstood maybe because of it’s native complexity, don’t know?!

jQuery localStorage plugin (alpha)

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After submitting the HTML5 localStorage wrap plugin for jQuery, there comes the new version, hopefully more stable and reliable!

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(function(jQuery) {
 
   var supported = true;
   if (typeof localStorage == 'undefined' || typeof JSON == 'undefined')
      supported = false;
   else
      var ls = localStorage;
 
   this.setItem = function(key, value, lifetime) {
      if (!supported)
         return false;
 
      if (typeof lifetime == 'undefined')
         lifetime = 60000;
 
      ls.setItem(key, JSON.stringify(value));
      var time = new Date();
      ls.setItem('meta_ct_'+key, time.getTime());
      ls.setItem('meta_lt_'+key, lifetime);
   };
 
   this.getItem = function(key) {
      if (!supported)
         return false;
 
      var time = new Date();
      if (time.getTime() - ls.getItem('meta_ct_'+key) > ls.getItem('meta_lt_'+key)) {
         ls.removeItem(key);
         ls.removeItem('meta_ct_'+key);
         ls.removeItem('meta_lt_'+key);
         return false;
      }
      return JSON.parse(ls.getItem(key));
   };
 
   this.removeItem = function(key) {
      if (!supported)
         return false;
 
      ls.removeItem(key);
      ls.removeItem('meta_ct_'+key);
      ls.removeItem('meta_lt_'+key);
      return true;
   };
 
   jQuery.localStorage = this;
 
})(jQuery);
 
if (!$.localStorage.getItem('test')) {
   $.localStorage.setItem('test', ['stoimen'], 5000);
   console.log('dynamic');
} else {
   console.log('from cache');
}

jQuery localStorage plugin

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I’ve decided to wrap the functionality of HTML5 localStorage in a jQuery plugin, with the simple functionality of a lifetime period for every cache. I’m going to post only the pre-release with the idea to clean up the code in the recent future.

(function(jQuery) {

   var supported = true;
   if (typeof localStorage == 'undefined' || typeof JSON == 'undefined')
      supported = false;
   else
      var ls = localStorage;

   this.setItem = function(key, value, lifetime) {
      if (!supported)
         return false;

      ls.setItem(key, JSON.stringify(value));
      var time = new Date();
      ls.setItem('meta_ct_'+key, time.getTime());
      ls.setItem('meta_lt_'+key, lifetime);
   };

   this.getItem = function(key) {
      var time = new Date();
      if (!supported || time.getTime() - ls.getItem('meta_ct_'+key) > ls.getItem('meta_lt_'+key))
         return false;
      return JSON.parse(ls.getItem(key));
   };

   this.removeItem = function(key) {
      return supported && ls.removeItem(key);
   };

   jQuery.localStorage = this;

})(jQuery);

if (!$.localStorage.getItem('test')) {
   $.localStorage.setItem('test', ['stoimen'], 600000);
   alert('dynamic');
} else {
   alert('from cache');
}

Any feedback is welcome! Yet again the code isn’t tested at all.

clickoutside jQuery plugin

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I wrote a small plugin to jQuery that adds the event of clicking outside an element. You know sometimes you should close some modal windows when clicking outside. It’s really simple and small. Please provide any feedback that will improve it.

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(function(jQuery) {
   jQuery.fn.clickoutside = function(callback) {
      var outside = 1, self = $(this);
      self.cb = callback;
      this.click(function() {
         outside = 0;
      });
      $(document).click(function() {
         outside && self.cb();
         outside = 1;
      });
      return $(this);
   }
})(jQuery);

You can see the demo page here. To install it just include the chunk above after the jQuery library code.