Error Object Properties
Error objects have a number of properties that can be used to get information about the error, including the following:
- Message: A human-readable message describing the error.
- Stack: A stack trace representing where the error occurred.
- Line Number: The line number in the source code where the error occurred.
- Column Number: The column number in the source code where the error occurred.
- Error: The type of error.
Non-Standard Error Object Properties
Non-standard error object properties are those that are not defined by the standard. These can include properties such as name, message, and stack trace. Each of these can be useful when debugging errors. The name property can be used to identify the error, the message property can provide more information about the error, and the stack trace can help you track down where the error originated.
URI (Uniform Resource Identifier) Error
The URI (Uniform Resource Identifier) Error occurs when the web page you are attempting to view cannot be found. This is usually due to a typo in the web address, or the page has been removed from the internet. When you encounter a URI Error, you will see a message similar to “The requested document was not found on this server.”
If you are certain that the web address is correct, the cause of the error may be that the page has been taken down temporarily or permanently. In this case, there is not much you can do except try again later or search for an alternate website. If you are confident that the web address is incorrect, you can try correcting it and reloading the page.
A runtime error is a type of error that occurs during the execution of a program. Runtime errors can be caused by many factors, including faulty code, incorrect data types, and incorrect subroutine calls. When a runtime error occurs, the program will usually terminate abruptly, and an error message will be displayed.
In some cases, it may be possible to debug the program and find the cause of the error. However, in other cases, the only option may be to restart the program from the beginning. Regardless of the cause, runtime errors can be frustrating for both programmers and users alike.
One common error is the “range error”, which occurs when a value is outside the expected range. For example, if you try to access an array element that doesn’t exist, you’ll get a range error. Range errors can also occur when using string methods, like substr() or charAt(). If the starting index is greater than the length of the string, you’ll get a range error. In general, range errors are caused by incorrect input values. To avoid them, make sure to check your input values before using them in your code.
Reference Errors in JS
- var x = 10;
- console.log(x); // Outputs 10;
- console.log(y); // ReferenceError: y is not defined.
In this code, there is a reference to the variable y, which has not been declared. As a result, a reference error is thrown.
Browser compatibility has always been a hot topic when it comes to web development. Different browsers have different implementations of web standards, which can lead to discrepancies in how a website looks and functions. In addition, browser developers often introduce new features and update their browsers at a different pace, so keeping up with browser compatibility can be a daunting task.