Challenge Sift through Text with Regular Expressions
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Sift through Text with Regular Expressions
Regular expressions are used to find certain words or patterns inside of strings.
Regular expressions are usually surrounded by / symbols.
For example, if we wanted to find the number of times the word the occurred in the string The dog chased the cat, we could use the following regular expression: /the+/gi
Let's break this down a bit:
the is the pattern we want to match.
-
+means we want to find one or more occurrences of this pattern. -
gmeans that we want to search the entire string for this pattern. -
imeans that we want to ignore the case (uppercase or lowercase) when searching for the pattern.
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