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How to find where gem files are installed
... repository
list Display gems whose name starts with STRING
lock Generate a lockdown list of gems
mirror Mirror all gem files (requires rubygems-mirror)
outdated Display all gems that need updates
owner ...
php Replacing multiple spaces with a single space [duplicate]
...here a way to get rid of all spaces at the right & and the left of the string? for example, " a b c ", would be "a b c", I know we could use trim($output), but it would be nice to have it in regex
– eawedat
Feb 1 '17 at 22:31
...
python ? (conditional/ternary) operator for assignments [duplicate]
...ed to False => so you will NEVER get values like 0 (int zero), ""(empty string), [] empty array, False, and other "empty" values => because they evaluate to False => True and False is False :) Some languages even consider "0" (zero as string) as empty value :)
– jave...
.prop() vs .attr()
...lly simpler to deal with than attributes. An attribute value may only be a string whereas a property can be of any type. For example, the checked property is a Boolean, the style property is an object with individual properties for each style, the size property is a number.
Where both a property and...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...isCpp0x() {
return (sizeof c::a()) == sizeof(b);
}
Also, the fact that string literals do not anymore convert to char*
bool isCpp0xImpl(...) { return true; }
bool isCpp0xImpl(char*) { return false; }
bool isCpp0x() { return isCpp0xImpl(""); }
I don't know how likely you are to have this work...
What is the purpose of a plus symbol before a variable?
...
I just wonder which is more efficient, parse a string into an integer using the function parseInt or using the plus operator?
– acarlstein
Jul 23 '18 at 23:24
...
slf4j: how to log formatted message, object array, exception
...not recognize that in your example you used n=3 placeholders in the format string and n+1=4 elements in the object array. I had n placeholders in the format string and also n elements in the object array plus an exception as third parameter. My expectation was that the exception would be printed wit...
What character to use to put an item at the end of an alphabetic list?
... here is some code that creates a bunch of folders with all the printables strings in Python so you can test your file manager.
import os
import string
for i in string.printable:
try:
os.mkdir(i)
except OSError:
print('OSError for %s' %(I))
Once you have sorte...
What is difference between XML Schema and DTD?
... <year>
2000 //---> I can also use a string,not good
</year>
</student>
</university>
XML Schema Definition (XSD)
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<x...
java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...lled in the very same method.
protected void doXxx() {
out.write("some string");
// ...
forward(); // Fail!
}
The response buffer size defaults in most server to 2KB, so if you write more than 2KB to it, then it will be committed and forward() will fail the same way:
java.lang.Illegal...