从JavaScript中删除字符串中的最后一个逗号

Question

I have a JavaScript method to return an array of database objects. The following Kendo UI template allows the items to be returned as a comma-separated string.

The problem is, a comma is always returned at the end of each string. Here's the code by the way:

    #for(var i = 0; i < Categories.length; i++){#
        #:Categories[i].CategoryName#,
    #}#

Any suggestions?

Answer 1

You can use this in plain javascript

Categories.slice(0,-1);

Here Categories is the variable from you want to remove last "," (comma)

Answer 2

You can use this template:

 #for(var i = 0; i < Categories.length; i++){#
      #if(i+1 === Categories.length){#
        #:Categories[i].replace(/,/g,'')#
        #} else{#
        #:Categories[i].CategoryName#
      #}#
    #}#