JavaScript – RegExp ?=n Quantifier
The JavaScript RegExp ?=n quantifier matches any string that is followed by a specific string n.
JavaScript – RegExp n+ Quantifier
The JavaScript RegExp n+ quantifier matches any string that contains at least one n.
JavaScript – RegExp ^n Quantifier
The JavaScript RegExp ^n quantifier matches any string with n at the beginning of it.
JavaScript – RegExp n* Quantifier
The JavaScript RegExp n* quantifier matches any string that contains zero or more occurrences of n.
JavaScript – RegExp n? Quantifier
The JavaScript RegExp n? quantifier matches any string that contains zero or one occurrences of n.
JavaScript – RegExp ?!n Quantifier
The JavaScript RegExp ?!n quantifier matches any string that is not followed by a specific string n.
JavaScript – RegExp n{X} Quantifier
The JavaScript RegExp n{X} quantifier matches any string that contains a sequence of X n’s. X must be a number.
JavaScript – RegExp n$ Quantifier
The JavaScript RegExp n$ quantifier matches any string with n at the end of it.
JavaScript – RegExp n{X,} Quantifier
The JavaScript RegExp n{X,} quantifier matches any string that contains a sequence of at least X n’s. X must be a number.
JavaScript – RegExp n{X,Y} Quantifier
The JavaScript RegExp n{X,Y} quantifier matches any string that contains a sequence of X to Y n’s. Both X and Y must be a number.