It claims zero or more event of whitespace figures, followed by a comma after which followed by zero or more occurrence of whitespace characters.
Individuals two replaceAll phone calls will generally make precisely the same outcome, regardless of what x is. Having said that, it is important to note which the two typical expressions are not the exact same:
In some code that I've to maintain, I've noticed a structure specifier %*s . Can any person tell me what This is often and why it can be employed?
Applying %s in scanf without having an explcit industry width opens the identical buffer overflow exploit that will get did; specifically, if you can find more characters while in the enter stream than the goal buffer is sized to hold, scanf will happily publish Those people additional characters to memory outdoors the buffer, perhaps clobbering a little something essential. Regrettably, not like in printf, You cannot offer the sector with like a run time argument:
This really is quite normal mistake-examining code for any Python script that accepts command-line arguments.
The very first regex will match one particular whitespace character. The next regex will reluctantly match a number of whitespace figures. For the majority of applications, both of these regexes are really comparable, except in the second case, the regex can match more of the string, if it prevents the regex match from failing. from
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And because your 2nd parameter is empty string "", there isn't a distinction between the output of two cases.
Andrew HareAndrew Hare 351k7575 gold badges645645 silver badges641641 bronze badges three 15 Take note that this sort of string interpolation is deprecated in favor of the more powerful str.structure read more approach.
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How to proceed with a toddler who is looking for attention negatively and now is becoming agressive to Some others?
this assignation can be done at initialization like char phrase="this can be a term" // the word variety of chars got this string now which is statically defined
For starters you need to realize that remaining output of each the statements might be exact same i.e. to get rid of the many spaces from given string.
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