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How to fix 'sudo: no tty present and no askpass program specified' error?
...k for a password. For example in my system x11-ssh-askpass works fine.
In order to do that you have to specify what program to use, either with the environment variable SUDO_ASKPASS or in the sudo.conf file (see man sudo for details).
You can force sudo to use the askpass program by using the opti...
Change Bootstrap input focus blue glow
...e="tel"]:focus,
input[type="color"]:focus,
.uneditable-input:focus {
border-color: rgba(126, 239, 104, 0.8);
box-shadow: 0 1px 1px rgba(0, 0, 0, 0.075) inset, 0 0 8px rgba(126, 239, 104, 0.6);
outline: 0 none;
}
sh...
What is the difference between Set and List?
...
List is an ordered sequence of elements whereas Set is a distinct list of elements which is unordered (thank you, Quinn Taylor).
List<E>:
An ordered collection (also known as a
sequence). The user of this interface
has pr...
How to add elements of a Java8 stream into an existing List
...TE: nosid's answer shows how to add to an existing collection using forEachOrdered(). This is a useful and effective technique for mutating existing collections. My answer addresses why you shouldn't use a Collector to mutate an existing collection.
The short answer is no, at least, not in general,...
Can't use method return value in write context
...
empty() needs to access the value by reference (in order to check whether that reference points to something that exists), and PHP before 5.5 didn't support references to temporary values returned from functions.
However, the real problem you have is that you use empty() at ...
MySQL Orderby a number, Nulls last
Currently I am doing a very basic OrderBy in my statement.
12 Answers
12
...
Using relative URL in CSS file, what location is it relative to?
...
In order to create modular style sheets that are not dependent on the absolute location of a resource, authors may use relative URIs. Relative URIs (as defined in [RFC3986]) are resolved to full URIs using a base URI. RFC 3986, ...
Is it safe to ignore the possibility of SHA collisions in practice?
...ty of such an event occurring in the next second to about 10-15. That's 45 orders of magnitude more probable than the SHA-256 collision. Briefly stated, if you find SHA-256 collisions scary then your priorities are wrong.
In a security setup, where an attacker gets to choose the messages which will...
Why does the C# compiler not fault code where a static method calls an instance method?
...he explanation of the dynamic example of the Original Question is that, in order to be consistent, when types are dynamic we also first find the best overload (checking only parameter number and parameter types etc., not static vs. non-static), and only then check for static. But that means that the...
Limiting floats to two decimal points
...:.2f}".format(13.949999999999999)
Note 1: the above returns a string. In order to get as float, simply wrap with float(...):
float("{:.2f}".format(13.949999999999999))
Note 2: wrapping with float() doesn't change anything:
>>> x = 13.949999999999999999
>>> x
13.95
>>>...