This is a standard JavaScript error when trying to call a function before it is defined. This error occurs if you try to execute a function that is not initialized or is not initialized correctly. This means that the expression did not return a function object. So you need to understand that what you are trying to achieve is not a feature....

In this article article, let’s first discuss the Reference error and then come to onclick function and then we come over the question Uncaught ReferenceError at HTMLButtonElement.onclick using example and lastly come to the solution approach....

This JavaScript exception invalid assignment left-hand side occurs if there is a wrong assignment somewhere in code. A single “=” sign instead of “==” or “===” is an Invalid assignment....

This JavaScript exception variable is not defined and occurs if there is a non-existent variable that is referenced somewhere....

In JavaScript, errors can be thrown using the throw statement to indicate an exceptional condition. The try block is used to wrap code that might throw an error, and the catch block handles the error, preventing the program from crashing and allowing graceful error management....

The “Cannot GET /” error in Node.js typically occurs when you try to access a route in your web browser that hasn’t been defined in your application. This common issue can be resolved by ensuring that your server is correctly set up to handle incoming requests at the root path or other specified paths....

This JavaScript exception can’t access the lexical declaration `variable’ before initialization occurs if a lexical variable has been accessed before initialization. This could happen inside any block statement when let or const declarations are accessed when they are undefined....

In this article, we will see “Uncaught TypeError: document.getElementsByClassName(…).click is not a function” error created while using click() method in JavaScript....

This JavaScript exception missing ) after argument list occurs if there is an error in function calls. This could be a typing mistake, a missing operator, or an unescaped string....

This JavaScript exception invalid date occurs if the string that has been provided to Date or Date.parse() is not valid....

This JavaScript error unterminated string literal occurs if there is a string that is not terminated properly. String literals must be enclosed by single (‘) or double (“) quotes....

This JavaScript exception is not iterable occurs if the value present at the right-hand-side of for…of or as argument of a function such as Promise.all or TypedArray.from, can not be iterated or is not an iterable object....