Question

on
Which of the following is correct about the regexp "\d"?
Select one:
O A Quantifier represents a non-digit number
O A Meta Character represents a non-digit number
O A Meta Character represents a digit(0-9)
O A Quantifier represents an integer value​

Answer 1

Answer:

A Meta Character represents a digit(0-9)

Answer 2

The correct answer is

A Meta Character represents a non-digit number

The RegExp \D Metacharacter in JavaScript is used to go looking for non-digit characters

i.e all the characters except digits. it's the same as [^0-9].

• This instance searches the non-digit characters within the whole string.
• A regex pattern matches a target string. The pattern consists of a sequence of atoms. associate atom may be a single purpose at intervals the regex pattern that it tries to match to the target string.
• The best atom is literal, however, grouping components of the pattern to match an atom would force mistreatment ( ) as metacharacters.
• In JavaScript, a Regular [removed]RegEx is an associate object that describes a sequence of characters used for outlining a research pattern.
• For example, /^a...s$/ The higher than code defines a RegEx pattern. The pattern is any 5-letter string beginning with a and ending with s.
• Regular expressions are helpful in search and replace operations. the everyday use case is to appear for a substring that matches a pattern and replace it with one thing else.
• Most Apis mistreatment regular expressions permit you to reference capture teams from the search pattern within the replacement string.

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