startsWith() and endsWith() String Methods in JavaScript | JavaScript Course for Beginners from S...
In this video, we'll explore the startsWith() and endsWith() methods in JavaScript. startsWith() checks whether a string begins with the specified substring, and endsWith() checks whether a string ends with the specified substring. Both methods return true or false. We'll look at real-world examples: checking an https link, file extensions, and a capitalization pitfall.
⏱ TIMECODES
0:00 - Checking if a link starts with https
1:19 - Where are we currently in the course - 15 methods covered, today the last two
1:37 - What are startsWith and endsWith - they check the beginning and end of a string
2:33 - Difference from includes - includes searches anywhere in a string
2:59 - Syntax: searchString, returns true or false
3:23 - Important: case matters - uppercase and lowercase are different characters
4:00 - Practice: Checking file extensions using endsWith
5:08 - Practice: Example with case - true and false
6:26 - Solution: toLowerCase() for case-insensitive comparison
6:35 - Lesson summary: the string methods block is complete
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