Answers

• allan Posts: 61,972Questions: 1Answers: 10,160 Site admin

  February 16 Answer ✓

  Thank you I've been writing up a release blog post and hope to drop that on Monday - it should give a clearer idea of the major new bits.

  Interesting about this issue. That it worked before is a total fluke - it hasn't been tested for that (it is only tested for a string, as is documented: columns.title). I had a little look at it, and that it works as a function is an artifact of jQuery's .html function. If it gets a function, it will execute it before writing it to the HTML. However, the titles were changed for v2 and I don't use $().html() for it any more - just write directly to it.

  Interestingly, I was always getting a .replace error when testing - does that not happen for you: https://live.datatables.net/letigiji/1/edit ?

  There is a work around... Make your function immediately invoked (you mentioned that it is, but it isn't since the function is being passed as a value). Execute it immediately and the result is assigned to columns.title:

  {
      data: 'field',
      title: function () { return fn('icon') + ' title' }()
  }
  

  https://live.datatables.net/letigiji/2/edit

  The only difference is the () at the end. Since this part of the DataTables init is fully synchronous, I don't think there will be any change in behaviour.

  Or do:

  {
      data: 'field',
      title: some_icon_function('icon') + ' some column title'
  }
  

  Allan
• Loren Maxwell Posts: 387Questions: 94Answers: 10

  February 16 edited February 16

  Thanks, @allen -- I'm a hobbyist trying to keep up with professionals, so I always appreciate the explanations you provide! I've learned something now about immediately invoked functions!

  Anyway, I wasn't getting any type of error, but this code here works perfectly!

  {
      data: 'field',
      title: some_icon_function('icon') + ' some column title'
  }
  
• allan Posts: 61,972Questions: 1Answers: 10,160 Site admin

  February 16

  Perfect!

  I feel like I'm constantly trying to keep up as well - the Javascript world moves so fast!

  Allan