How to avoid global variables in WordPress












-2















I've had a few instances now in which I create, say, a variable with css called



.slider



and it affected alot of stuff on my page.
How do I avoid this?



Also, I've written alot of JavaScript in a plugin, and ended up doing changes to global variables.



Is there a way to avoid this? All of the sudden all the images might change on a page, or something in the javascript code changes stuff on the page.










share|improve this question



























    -2















    I've had a few instances now in which I create, say, a variable with css called



    .slider



    and it affected alot of stuff on my page.
    How do I avoid this?



    Also, I've written alot of JavaScript in a plugin, and ended up doing changes to global variables.



    Is there a way to avoid this? All of the sudden all the images might change on a page, or something in the javascript code changes stuff on the page.










    share|improve this question

























      -2












      -2








      -2








      I've had a few instances now in which I create, say, a variable with css called



      .slider



      and it affected alot of stuff on my page.
      How do I avoid this?



      Also, I've written alot of JavaScript in a plugin, and ended up doing changes to global variables.



      Is there a way to avoid this? All of the sudden all the images might change on a page, or something in the javascript code changes stuff on the page.










      share|improve this question














      I've had a few instances now in which I create, say, a variable with css called



      .slider



      and it affected alot of stuff on my page.
      How do I avoid this?



      Also, I've written alot of JavaScript in a plugin, and ended up doing changes to global variables.



      Is there a way to avoid this? All of the sudden all the images might change on a page, or something in the javascript code changes stuff on the page.







      javascript css wordpress variables global






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 '18 at 8:21









      Jørn Thomas DufeyJørn Thomas Dufey

      22




      22
























          1 Answer
          1






          active

          oldest

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          0














          It seems that your code looks like this:



          var my_global_var = 123;

          function do_something_with_vars() {
          // ... your logic here

          }

          function do_something_else_with_vars() {
          // ... your logic here
          }


          One way to avoid global variables conflict is to use anonymous functions:



          The above code can be re-written as:



          (function(){
          var my_global_var = 123;
          function do_something_with_vars() { ... };
          function do_something_else() { ... };
          })();
          // here, my_global_var is out of scope.





          share|improve this answer























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            1 Answer
            1






            active

            oldest

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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            It seems that your code looks like this:



            var my_global_var = 123;

            function do_something_with_vars() {
            // ... your logic here

            }

            function do_something_else_with_vars() {
            // ... your logic here
            }


            One way to avoid global variables conflict is to use anonymous functions:



            The above code can be re-written as:



            (function(){
            var my_global_var = 123;
            function do_something_with_vars() { ... };
            function do_something_else() { ... };
            })();
            // here, my_global_var is out of scope.





            share|improve this answer




























              0














              It seems that your code looks like this:



              var my_global_var = 123;

              function do_something_with_vars() {
              // ... your logic here

              }

              function do_something_else_with_vars() {
              // ... your logic here
              }


              One way to avoid global variables conflict is to use anonymous functions:



              The above code can be re-written as:



              (function(){
              var my_global_var = 123;
              function do_something_with_vars() { ... };
              function do_something_else() { ... };
              })();
              // here, my_global_var is out of scope.





              share|improve this answer


























                0












                0








                0







                It seems that your code looks like this:



                var my_global_var = 123;

                function do_something_with_vars() {
                // ... your logic here

                }

                function do_something_else_with_vars() {
                // ... your logic here
                }


                One way to avoid global variables conflict is to use anonymous functions:



                The above code can be re-written as:



                (function(){
                var my_global_var = 123;
                function do_something_with_vars() { ... };
                function do_something_else() { ... };
                })();
                // here, my_global_var is out of scope.





                share|improve this answer













                It seems that your code looks like this:



                var my_global_var = 123;

                function do_something_with_vars() {
                // ... your logic here

                }

                function do_something_else_with_vars() {
                // ... your logic here
                }


                One way to avoid global variables conflict is to use anonymous functions:



                The above code can be re-written as:



                (function(){
                var my_global_var = 123;
                function do_something_with_vars() { ... };
                function do_something_else() { ... };
                })();
                // here, my_global_var is out of scope.






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 22 '18 at 8:25









                AhmadAhmad

                8,20543463




                8,20543463






























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