base64 encode using javascript

We can encode any string to a encoded data (using base-64 encoding) string.

The btoa() method of window object used to to a encoded data (using base-64 encoding) string.


Example :



window.btoa('Hello World !!!');

Output : SGVsbG8gV29ybGQgISEh

Use Facebook to Comment on this Post


Comments

Post a Comment

Popular posts from this blog

cookie and subdomains

A cookie can be set either for a specific domain or a domain and its subdomain. Cookie for a specific domain: When you set a cookie from a web server in php using setcookie() function then this function accepts some parameters. Some parameters are required and some are optional. In those parameters there is one parameter called domain, which means this cookie would be available for that domain. Domain parameter is an optional parameter. If you don’t set the domain in setcookie() function then it will set the cookie which would be available to current host only. It won’t be available its subdomain. setcookie("TestCookie", $value, time()+3600); Cookie for domain and subdomains: If you set the domain (top level domain) name in setcookie() function then it will set the cookie which would be availabe to its domain and subdomains. For ex. setcookie("TestCookie", $value, time()+3600,'example.com'); Above function will set the cookie with the domain “.example.com”. ...
Read more

how to check whether element is visible on screen

Sometime we need to load some content when that element is visible on browser. So first we need to find whether that element is visible on the browser or not. Below is the demo example : Javascript function : function isVisible(elem) var TopView = $(window).scrollTop(); var BotView = TopView + $(window).height(); var TopElement = $(elem).offset().top; var BotElement = TopElement + $(elem).height(); return ((BotElement <= BotView) && (TopElement >= TopView)); HTML Part : <div id="my_element" class="no_visible"> <script type="text/javascript"> $(window).scroll(function () if($("#my_element").hasClass("no_visible")) isOnView = isVisible("#my_element"); if(isOnView) $("#my_element").removeClass("no_visible"); ); </script> </div> Use Facebook to Comment on this Post how to check whether element is visible on screen
Read more

Detect Mobile device through javascript

Detect Mobile device through javascript A pretty simple solution is to check for mobile device is the screen width. Almost all mobile devices have a max screen width of 480px. We can get the screen width using below statement: var screen_width = window.screen.availWidth; The only exceptions are tablet pc's like the ipad. These devices have a higher screen width than smartphones. We can use browsers user agent to determine whether this is a mobile device or not. Below is the function to determine the mobile device based on user-agent: (function(a){         if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|...
Read more