大约有 45,000 项符合查询结果（耗时：0.0508秒） [XML]
How do you count the number of occurrences of a certain substring in a SQL varchar?
... comes to mind is to do it indirectly by replacing the comma with an empty string and comparing the lengths
Declare @string varchar(1000)
Set @string = 'a,b,c,d'
select len(@string) - len(replace(@string, ',', ''))
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How to negate a method reference predicate
...w method Predicate#not
So you can negate the method reference:
Stream<String> s = ...;
long nonEmptyStrings = s.filter(Predicate.not(String::isEmpty)).count();
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How to check if a string “StartsWith” another string?
How would I write the equivalent of C#'s String.StartsWith in JavaScript?
19 Answers
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JavaScript equivalent to printf/String.Format
...JavaScript equivalent of the C/PHP printf() or for C#/Java programmers, String.Format() ( IFormatProvider for .NET).
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Remove duplicates from a List in C#
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its unbelievable fast... 100.000 strings with List takes 400s and 8MB ram, my own solution takes 2.5s and 28MB, hashset takes 0.1s!!! and 11MB ram
– sasjaq
Mar 25 '13 at 22:28
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std::string to char*
I want to convert a std::string into a char* or char[] data type.
18 Answers
18
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Can I multiply strings in Java to repeat sequences? [duplicate]
...st way in plain Java with no dependencies is the following one-liner:
new String(new char[generation]).replace("\0", "-")
Replace generation with number of repetitions, and the "-" with the string (or char) you want repeated.
All this does is create an empty string containing n number of 0x00 ch...
Remove all special characters from a string [duplicate]
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This should do what you're looking for:
function clean($string) {
$string = str_replace(' ', '-', $string); // Replaces all spaces with hyphens.
return preg_replace('/[^A-Za-z0-9\-]/', '', $string); // Removes special chars.
}
Usage:
echo clean('a|"bc!@£de^&$f g');
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Capitalize words in string [duplicate]
What is the best approach to capitalize words in a string?
21 Answers
21
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How do I remove all specific characters at the end of a string in PHP?
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$output = rtrim($string, '.');
(Reference: rtrim on PHP.net)
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