What is the 0x800a138a error? Describe the cause of the error and explain various steps to fix the error and also attach a snapshot of the error.
When the value inside the textbox is changed on the ASP.NET page, then it throws an error message that is known as 0x800a138a error code. The cause of the 0x800a138a error is the wrong operation and input in the coding language. The programmer always has to check the code to avoid runtime error.
In this error, the coder should remember that .childNodes is an “array-like object.” One accesses its elements via square brackets. The code should not use the document. It’s a proprietary extension, and instead of that, one should use standard methods, such as document.getElementById().
The 0x800a138a error message code contain: “0x800a138a – JavaScript runtime error: Function expected.”
The snapshot of the error occurrence is shown below:
