¡@
javascript Programming Glossary: sigWhy use /*, */ around arguments and why use >>> when extracting the length of an array? http://stackoverflow.com/questions/1385491/why-use-around-arguments-and-why-use-when-extracting-the-length-of-a Ecmascript Quickref arguments.html The is an unsigned right shift. It's being used here to convert a potentially.. right shift. It's being used here to convert a potentially signed number length into an unsigned number. http books.google.co.uk.. to convert a potentially signed number length into an unsigned number. http books.google.co.uk books id f 5F2R9ra2PjEC pg..
How to check if a user likes my Facebook Page or URL using Facebook's API http://stackoverflow.com/questions/5093398/how-to-check-if-a-user-likes-my-facebook-page-or-url-using-facebooks-api for Canvas advanced option Facebook will send a _REQUEST 'signed_request' along with every page requested within your tab.. page requested within your tab app. If you parse that signed_request you can get some info about the user including if.. or not. function parsePageSignedRequest if isset _REQUEST 'signed_request' encoded_sig null payload null list encoded_sig payload..
Facebook how to check if user has liked page and show content? http://stackoverflow.com/questions/6246449/facebook-how-to-check-if-user-has-liked-page-and-show-content I posted here below here is some ruby code to decode the signed_request that facebook POST to your CANVAS URL when it fetches.. In your action controller decoded_request Canvas.parse_signed_request params signed_request And then its a matter of checking.. decoded_request Canvas.parse_signed_request params signed_request And then its a matter of checking the decoded request..
What do “>>” and “<<” mean in Javascript? http://stackoverflow.com/questions/6997909/what-do-and-mean-in-javascript offset 2 0xFF b4 data.charCodeAt offset 3 0xFF var sign 1 2 b1 7 here it is and 2 lines below var exp b1 1 0xff b2.. it is and 2 lines below var exp b1 1 0xff b2 7 127 var sig b2 0x7f 16 b3 8 b4 if sig 0 exp 127 return 0.0 return sign 1.. var exp b1 1 0xff b2 7 127 var sig b2 0x7f 16 b3 8 b4 if sig 0 exp 127 return 0.0 return sign 1 sig Math.pow 2 23 Math.pow..
New JS SDK with OAuth 2.0 saving subdomain in fbsr_ cookie? http://stackoverflow.com/questions/7206204/new-js-sdk-with-oauth-2-0-saving-subdomain-in-fbsr-cookie of a fbs_APP_ID cookie notice the r . It contains a signed request and part of the oauth migration. If you use the PHP.. uses the old cookie format. You can find how to parse a signed request here http developers.facebook.com docs authentication.. here http developers.facebook.com docs authentication signed_request Then you need to turn the code parameter in the cookie..
Extracting the exponent and mantissa of a Javascript Number http://stackoverflow.com/questions/9383593/extracting-the-exponent-and-mantissa-of-a-javascript-number isNaN x return mantissa 6755399441055744 exponent 972 var sig x 0 1 1 if isFinite x return mantissa sig 4503599627370496 exponent.. exponent 972 var sig x 0 1 1 if isFinite x return mantissa sig 4503599627370496 exponent 972 x Math.abs x var exp Math.floor.. x Math.LOG2E 52 var man x Math.pow 2 exp return mantissa sig man exponent exp javascript math haskell ghc ieee 754 share..
|