November 8, 2023
Understanding the error
Common causes and solutions
Misspelled keywords or names
Check your code for misspellings of variables, function names, or reserved keywords. Ensure that reserved keywords are not used as variable names.
Missing commas in object literals
Ensure all object properties are separated by commas.
Incorrect variable declarations
Verify that all variables start with a letter, underscore, or dollar sign and do not contain illegal characters.
Unmatched parentheses, brackets, or braces
Check for and correct unmatched
Make sure all strings are enclosed in matching quotation marks and statements are properly terminated.
Tools and techniques for debugging
Linters and formatters
Use tools like ESLint or Prettier to automatically detect syntax errors and enforce code style rules.
Browser developer tools
Modern browsers have built-in developer tools that provide debugging features. Look into the console for errors and stack traces.
Advanced code editors like Visual Studio Code have IntelliSense and debugging capabilities to help identify syntax errors as you type.
- Always initialize variables before using them.
- Use semicolons to terminate statements explicitly.
- Keep a consistent coding style to reduce the chances of syntax errors.
- Read error logs carefully; they often include the line number where the error occurred.
How to Truncate Date in MySQL