November 8, 2023
Understanding String Indexing
length - 1, where
length is the number of characters in the string. This indexing allows you to access each character using square brackets
Accessing the Last Character
You can get the last character by subtracting one from the string's
length property and using this value as the index.
Using charAt Method
charAt() method returns the character at a specified index. For the last character, pass
string.length - 1 as the argument.
slice() method can extract a section of a string. To get the last character, use
-1 as the start slice index.
Using Regular Expressions
Regular expressions can match patterns within strings. To find the last character, use a regex pattern.
Handling Edge Cases
It's good practice to check if the string is empty before trying to access its characters to avoid errors.
For performance-critical applications, direct indexing or
charAt() are preferred methods due to their simplicity and speed.
Remember to handle strings with care, as attempting to access an index that doesn't exist will return
undefined, not an error. Always ensure that the string is not empty to avoid such issues.
How to Truncate Date in MySQL