jQuery constants as variables for calling functions

Question

In jQuery, is it possible to have a variable as a constant? I know it is not possible in many other languages, but jQuery never ceases to surprise me. Maybe this isn't the right question, anyway, I am trying to use a loop index as an ID, of which the ID calls a method. Through each loop the ID changes and I'm trying to trigger the same function from a set of different a elements. How can I change my code to have a dynamic caller?

  for(var i in data.items) {

      var id = $(i);
      var viewMore = $("<a href=# id=" + id + ">View More</a>");

      id.on('click', function(x) { 
          // do something
      }

   }

may be for (var i in data.items) { var id = $(i); var viewMore = $("<a href=# id=" + o + ">View More</a>"); viewMore.on('click', function (x) { // do something }) } — Arun P Johny
– Arun P Johny, Commented Jan 12, 2014 at 9:34
Hm no @arun, I can't think of the best way to ask the question. I'm trying to call an ID of an element to trigger the function, not call with the entire element via string. — Jim22150
– Jim22150, Commented Jan 12, 2014 at 9:40
@arun, your code works, it was actually my original, but now I am trying to shrink my code; and my question seems like there is an answer. — Jim22150
– Jim22150, Commented Jan 12, 2014 at 9:50

Dmitriy.Net · Accepted Answer · 2014-01-12 22:26:37Z

8

jQuery is javascript library, It is not language, and it doesn't have constants. You can only create an imaginary constant, which will differ from variables.

For example:

var MY_CONSTANT = "my constant value";

As for your sript, as for me, the more correct way is:

 // It is your constant
 var VIEW_MORE = $("<a href='#'>View More</a>");

 for(var i in data.items) 
 {
     VIEW_MORE.clone().attr('id', i).on('click', function(x) 
     { 
           // do something
     }
 }

edited Jan 12, 2014 at 22:26

answered Jan 12, 2014 at 11:41

Dmitriy.Net

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2 Comments

Jim22150 Over a year ago

I'm know my question is not politically worded correctly, but would you say there is a way for me to call the click method with an id that changes after every loop?

Jim22150 Over a year ago

Very nice @Dmitriy.Net! I didn't think about the clone function; that's exactly what I needed. Thanks!

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