Hi there,

I'm frustrated! I am trying to get what I think should be a simple regular expression working, but it's evading me. In perl it would be



in javascript from what I have read match() seems to be the method I need. All I need to do is check for the existance of a comma in a string so I can deal with the string as an array.



this returns myString.match() is not a function

so I tried



same error

I know that it's probably something really simple so apologies. I'm only testing in Firefox at present.

thanks

A
Back to top

I have no idea why match would show as not a function on your browser, however, but this information might help.

You don't need to use new regEx at all, not sure where that idea came from.

match() works like this: it returns an array of strings that matched the regex pattern.


So to use match(), you do this - note that to use regex, no ' or " can be used when constructing the regex pattern:


Or, with normal regex:

You can also use, with a different test syntax, indexOf() (or here)



Or you can use search()



Note that in either case failure to locate the search term in the string returns a -1, not a 0, or false, since it's returning the string position or the failure code, -1
Back to top