TypeError: $(…). is not a function

Question

I\'m trying to track down an error TypeError: $(...).clientSideCaptcha is not a function at RegisterCapcha (http://localhost:4382/xxx/index.html:98:31)

Answer 1

After loading jQuery

    
if (typeof $ == 'undefined') {
   var $ = jQuery;
}

Reference：

https://v123.tw/fix-jquery-typeerror-not-function/