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Editorial Team
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Asked: 2026-05-27T17:45:36+00:00

I was using this statement in my code to cache the jquery selector and

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I was using this statement in my code to cache the jquery selector and this was causing an error in the console. The error was "Missing ; before statement"

var $medium-image-holder = $('#image_'+itemID_value);

where itemID_value is a numeric value. This statement is inside a for loop

Out of curiosity and after trying various tricks to overcome this thing, I replaced the hyphen with underscore in the variable name.

var $medium_image_holder = $('#image_'+itemID_value);

Surprisingly this worked.

I want to know whether using hyphens in JavaScript variable names is not permitted. At least, I didn’t know about this. Would be very helpful if someone clarifies.

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1 Answer

  1. Editorial Team

    Your statement $medium-image-holder is interpreted as $medium - image - holder ($medium minus image minus holder).

    After interpreting this statement as an algebraic expression, you try to set the outcome of it to a value with another statement (=$('#image_'+itemID_value)), which is not allowed. That is where your error message comes from.

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