syntax - Meaning of ${} in javascript -

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i need work on javascript lately. unfortunately, newbie.
have come across following code , don't understand meaning of ${count == 0}.

function body_onload() {     if(${count == 0})     {         document.getelementbyid("dispaly").style.display="none";     }        scanimagereportfrom.shopcodes.focus(); }

thank you.

finally found this can solve question.

it's not you. :-) that's not valid javascript (the { triggers syntax error).

it perhaps token pre-processor replaces before javascript passed javascript engine.


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