Does the @ symbol mean anything in javascript?

Question

I noticed the @ symbols mentioned in many javascript files and couldn\'t figure out the significance of this character there. for example:

/**
    * Call         


        

Answer 1

That comment is JSDoc. The @param callbackfn means "what follows is the description of the argument callbackfn".

Your IDE might be able to parse that format or you can use jsdoc to generate documentation from that.