A Rosetta Stone for jQuery & YUI3

Re:A Rosetta Stone for jQuery & YUI3 by knuckle_cake on Friday March 19, 2010 @06:03PM (#1205403)

Empty jQuery sets are truthy. The page gets this doubly wrong when it says an empty list is returned (instead of the 'Array-like' jQuery set.)

Check the length property of a returned jQuery set if truthiness really matters.

[ Parent | on HN ]

Re:A Rosetta Stone for jQuery & YUI3 by aristus on Friday March 19, 2010 @06:13PM (#1205422)

Ah! I will verify and correct. Thanks.

[ Parent | on HN ]

Re:A Rosetta Stone for jQuery & YUI3 by nfriedly on Friday March 19, 2010 @08:19PM (#1205662)

JavaScript is weird about truthyness / falsyness of arrays:

  if([] == false){
    // this code runs
  }

  if( [] ) {
    // this code also runs
  }

  if([] == true){
    // this code doesn't run
  }

[ Parent | on HN ]