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How can I convert a string to a number in Perl?
...
This is a simple solution:
Example 1
my $var1 = "123abc";
print $var1 + 0;
Result
123
Example 2
my $var2 = "abc123";
print $var2 + 0;
Result
0
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Ruby, remove last N characters from a string?
...diomatic (and I'd argue, even more readable than other answers here):
'abc123'.delete_suffix('123') # => "abc"
'abc123'.delete_suffix!('123') # => "abc"
It's even significantly faster (almost 40% with the bang method) than the top answer. Here's the result of the same benchmark:
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Removing all non-numeric characters from string in Python
... this is the most efficient way, but:
>>> ''.join(c for c in "abc123def456" if c.isdigit())
'123456'
The ''.join part means to combine all the resulting characters together without any characters in between. Then the rest of it is a list comprehension, where (as you can probably guess) ...
The remote end hung up unexpectedly while git cloning
...Sep 2015 12:00:00 GMT
* issuer: C=US,O=DigiCert Inc,OU=www.digicert.com,CN=DigiCert High Assurance EV CA-1
* compression: NULL
* cipher: ARCFOUR-128
* MAC: SHA1
> GET /django/django.git/info/refs?service=git-upload-pack HTTP/1.1
User-Agent: git/1.8.4
Host: github.com
Accept: */*
Accep...
Apply a function to every row of a matrix or a data frame
Suppose I have a n by 2 matrix and a function that takes a 2-vector as one of its arguments. I would like to apply the function to each row of the matrix and get a n-vector. How to do this in R?
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How to set SQL Server connection string?
...nnectionStringBuilder class is listed in this page from the Microsoft MSDN site.
About the default user of SQL Server, sa means "system-administrator" and its password varies according the SQL Server version. In this page you can see how the password varies.
SQL Server 2008/R2 Express User: sa...
Test whether string is a valid integer
...of "+" (e.g. +30) which obviously is an integer.
Results:
$ int_check.sh 123
123 is an integer !!
$ int_check.sh 123+
ERROR: first parameter must be an integer.
$ int_check.sh -123
-123 is an integer !!
$ int_check.sh +30
+30 is an integer !!
$ int_check.sh -123c
ERROR: first parameter must be...
Natural Sort Order in C#
...swer. In any case, you're free to provide a better answer; that's how this site works.
– Greg Beech
Jul 30 '12 at 7:45
6
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With ng-bind-html-unsafe removed, how do I inject HTML?
... what it says, it trusts any incoming html code, which can result in Cross-Site Scripting (XSS) attacks
– Aleksey Solovey
Apr 12 '19 at 16:59
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How can I pad a String in Java?
...*chars
Display '*' for characters of password:
String password = "secret123";
String padded = String.format("%"+password.length()+"s", "").replace(' ', '*');
output has the same length as the password string:
secret123
*********
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