Debugging

Debugging is the process of going through your code, finding any issues, and fixing them.

Issues in code generally come in three forms: syntax errors that prevent your program from running, runtime errors where your code has unexpected behavior, or logical errors where your code doesn’t do what you intended.

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Table of contents

• Use the JavaScript Console to Check the Value of a Variable
• Understanding the Differences between the freeCodeCamp and Browser Console
• Use typeof to Check the Type of a Variable
• Catch Misspelled Variable and Function Names
• Catch Unclosed Parentheses, Brackets, Braces and Quotes
• Catch Mixed Usage of Single and Double Quotes
• Catch Use of Assignment Operator Instead of Equality Operator
• Catch Missing Open and Closing Parenthesis After a Function Call
• Catch Arguments Passed in the Wrong Order When Calling a Function
• Catch Off By One Errors When Using Indexing
• Use Caution When Reinitializing Variables Inside a Loop
• Prevent Infinite Loops with a Valid Terminal Condition