What are some common CSS and JavaScript errors I should watch out for?

What are some common CSS and JavaScript errors I should watch out for?

Some common CSS errors include forgetting to close brackets, using incorrect property names, and not specifying units. For JavaScript, watch out for syntax errors, undefined variables, and incorrect function calls.

Can you give me examples of syntax errors in JavaScript?

Sure! A common syntax error is missing a closing parenthesis, like in console.log('Hello World'. Another example is using a single equals sign for comparison instead of double equals, like if (x = 5) instead of if (x == 5).

What about CSS? What are some common mistakes?

In CSS, a common mistake is forgetting to include a semicolon at the end of a property declaration, like color: red instead of color: red;. Another is using the wrong selector, such as using a class selector instead of an ID selector.

How can I debug these errors effectively?

To debug CSS, use browser developer tools to inspect elements and see applied styles. For JavaScript, use console.log() to track variable values and check for errors in the console.