JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Solution part II - Automate a Company Website wit

The video tutorial guides viewers through solving an algorithm challenge by defining and implementing a function called 'sentence capitalize'. The function takes a string and returns it with the first letter capitalized, without looping through each character. The tutorial includes testing and debugging the function, ensuring it works as intended. The instructor provides encouragement and motivation to viewers, emphasizing the importance of understanding the solution and celebrating their progress.

Describe the process of returning the string in the function without looping through substrings.

What does the speaker suggest to do if the viewer did not understand the solution initially?