How to count the number of replacements w/ replace?

[Sally B.]

Hi,
Using string.replace with regular expressions, is there any way to
count the number of replacements that actually happens? I know you can
limit the number of replacements w/ a count value, but how can one
count the actual number of times that an expression gets replaced?

Thanks,
Sally

 

[Evertjan.]

Sally B. wrote on 26 mrt 2005 in comp.lang.javascript:

Using string.replace with regular expressions, is there any way to
count the number of replacements that actually happens? I know you can
limit the number of replacements w/ a count value, but how can one
count the actual number of times that an expression gets replaced?

Don't use global: /g
use a: while () {}
with a counter: count++

or use a global .match count of the to be replaced.

I know you can limit the number of replacements w/ a count value

Please show me/us how.

 

[Mick White]

Hi,
Using string.replace with regular expressions, is there any way to
count the number of replacements that actually happens? I know you can
limit the number of replacements w/ a count value, but how can one
count the actual number of times that an expression gets replaced?

String.match(regexp) will yield an array of matches, the first entry of
which is the String.
Thus the number of matches is Array.length-1.
Mick