The "cannot read property map of undefined" error occurs when we try to call the map method on a variable that stores an undefined or null value.
Removing a specific item from an array is the most use case a developer runs into. You will learn more than 7 ways to achieve this.
In this two-sum problem, we use various approaches to solve the problem from brute force to an optimized approach. We also discuss the take-offs and talk about complexity analysis.
The "cannot read property split of undefined" error occurs when we try to call the split() method on a variable that stores an undefined value.