\D – used to find nun – numeric digits.\S – used to find non-whitespace characters.\s – used to find white space characters.\v – used to find a vertical tab character.A few other examples of metacharacters are. These are a combination of backward slash with an alphabetical character which together forms a metacharacter, and each of them has a special meaning associated with each of them. The metacharacters form the base of the regular expression pattern. Metacharacters of Regular Expressions in JavaScript The pattern consists of ranges, metacharacters, quantifiers, etc. Now, let us take a look at the patterns in the regular expression.
I,you,we //prints the first word of every line. If it isn’t in multi-line mode, then only the matches from the entire string are returned. In the case of multi-line, it looks for matches at the start and end of each line rather than that of the entire string. It affects the behavior of characters “^” and “$”. If not set, then the search is case-sensitive.Ħ //returns the index at which the string is found.Īlert( str.search(/educba/) ) //without global flag This is case insensitive and matches both upper and lower cases.
Scream, scream, scream // It returns all the matches in the string.
Var str = "I scream, you scream, we all scream for ice cream" If not used, it stops after the first match. Please try again with a smaller file.Finds multiple matches. Delete Remove No selected version Reset This field is required You are already subscribed to this topic Attach screenshot The file you uploaded exceeds the allowed file size of 20MB. Release notes and upgrades Click to open the dropdown menu. Explore products Click to go to the page. The available release versions for this topic are listed There is no specific version for this documentation. You were redirected to a related topic instead. The topic you requested does not exist in the release. Please try again or submit your comments. You have been unsubscribed from this content Thank you for your feedback. You are now subscribed to and will receive notifications if any changes are made to this page. You have been unsubscribed from all topics. Subscribe Subscribed Unsubscribe Last updated: Tags: January February March April May June July August September October November December No Results Found Versions Search preferences successfully updated My release version successfully updated My release version successfully deleted An error has occurred.
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