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What is a magic number, and why is it bad? [closed]
...le, if you have (in Java):
public class Foo {
public void setPassword(String password) {
// don't do this
if (password.length() > 7) {
throw new InvalidArgumentException("password");
}
}
}
This should be refactored to:
public class Foo {
pu...
How to Replace dot (.) in a string in Java
I have a String called persons.name
4 Answers
4
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How do you move a commit to the staging area in git?
...u want to move a commit to the staging area - that is uncommit it and move all of the changes which were in it into the staging area (effectively putting the branch in the state that it would have been in prior to the commit) - how do you do it? Or is it something that you can't do?
...
What exactly is metaprogramming?
...not in the trivial sense
that the source files contain
characters, and strings are one of the
data types supported by the language.
Lisp code, after it's read by the
parser, is made of data structures
that you can traverse.
If you understand how compilers work,
what's really going...
How to use hex color values
... a combination of the previous methods. There is absolutely no need to use strings.
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How can I loop through a C++ map of maps?
...+11 - you can use a ranged based for loop and simply do:
std::map<std::string, std::map<std::string, std::string>> mymap;
for(auto const &ent1 : mymap) {
// ent1.first is the first key
for(auto const &ent2 : ent1.second) {
// ent2.first is the second key
// ent2.sec...
Compare a string using sh shell
I am using SH shell and I am trying to compare a string with a variable's value but the if condition is always execute to true. Why?
...
Why should a function have only one exit-point? [closed]
...p massively indented to the right, and it becomes very difficult to follow all the nested scopes.
Another is that you can check preconditions and exit early at the start of a method, so that you know in the body of the method that certain conditions are true, without the entire body of the method b...
How do I concatenate two arrays in C#?
...ys instead of lists. eg System.IO.Directory.GetFiles() returns an array of strings.
– orion elenzil
Jan 7 '16 at 17:55
4
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NPM global install “cannot find module”
...
For anyone else running into this, I had this problem due to my npm installing into a location that's not on my NODE_PATH.
[root@uberneek ~]# which npm
/opt/bin/npm
[root@uberneek ~]# which node
/opt/bin/node
[root@uberneek ~]# echo $NODE_PATH
My NODE_PATH was empty, and running npm install --...