jquery - Incrementing a VTL variable in javascript function -

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<script>         var count_security = 0;     #set($count_security = 0)        function increment() {             count_security++;         #set($count_security = $count_security + 1)         alert(count_security);         alert($count_security);         } </script>  <html>     <input type="button" onclick="increment" /> </html>

when call above function on click of button "$count_security" variable incrementing once.its not incrementing further.

please if doing wrong. raghav

this because of have 2 contexts consider

  • the rendering context (velocity/vtl)
  • the execution context (browser/client)

so when renders have 1 execution in velocity engine execute velocity logic increments $count_security. rendered literal value output.

the var count_security javascript client variable can altered , updated client.

your velocity #set() code not rendered output "set". #set vtl function , not alter output stream.

i hope makes sense.


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