- Avoid using document.write(), as it can slow down the rendering of the page.
- Avoid using JS libraries that may not be needed or increase page load times.
- Performance test and optimize your script to prevent any potential bottlenecks.
- Monitor browser console logs to catch any errors with your code early on.
1. Syntax Errors
Syntax errors occur when you’ve made a mistake in the code syntax. In most cases, the issue is usually a misplaced comma, semicolon, or bracket. To debug syntax errors, carefully review the code and check each line for any syntax mistakes.
2. Undefined References
Undefined references occur when you reference a variable or function that doesn’t exist. This error can be frustrating to debug because it isn’t always clear where the error is coming from. To debug undefined references, you need to carefully trace through your code and identify where the reference is pointing to.
3. Uncaught Exceptions
Uncaught exceptions happen when the code throws an error that isn’t caught by a try-catch block. To debug uncaught exceptions, you should check the console log for any error message and investigate its root cause.
<head> section of the HTML document.
<body> section of the HTML document.
<body>section of the HTML document
Which Method is Better?