What is the fastest way to replace extra white spaces to one white space?
e.g.
from
foo bar
to
foo bar
What is the fastest way to replace extra white spaces to one white space?
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What is the fastest way to replace extra white spaces to one white space?
e.g.
from
foo bar
to
foo bar
The fastest way? Iterate over the string and build a second copy in a
StringBuildercharacter by character, only copying one space for each group of spaces.The easier to type
Replacevariants will create a bucket load of extra strings (or waste time building the regex DFA).Edit with comparison results:
Using http://ideone.com/NV6EzU, with n=50 (had to reduce it on ideone because it took so long they had to kill my process), I get:
Which is indeed as expected,
Regexis horribly inefficient for something this simple.