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Create JSON-object the correct way
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answered Jul 19 '10 at 13:21
CristianCristian
188k5858 gold badges348348 silver badges260260 bronze badges
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Call a “local” function within module.exports from another function in module.exports?
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@NamNguyen Calling exports.foo() seems a little bit awkward and hard to read.
– Afshin Mehrabani
Jul 19 '14 at 12:20
4
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How to undo a git pull?
...lt;SHA#>
– Nina
Aug 28 '15 at 18:10
This is the command I use the most when I have to undo something
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How can I store my users' passwords safely?
...random salt and store that salt along with the user record. It makes it a bit more expensive to check the password (since you need to look up the salt before you can generate the MD5 signature) but it makes it much more difficult for an attacker to pre-generate MD5's.
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How to make an array of arrays in Java
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A bit more complicated than String[ ][ ], but permits more operations such as concatenating data. However, your solution does not ensure the size of the data, which can be a problem.
– Benj
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How to set an “Accept:” header on Spring RestTemplate request?
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edited May 10 '17 at 19:34
Jon Sampson
1,25811 gold badge1616 silver badges2727 bronze badges
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Can I have multiple Xcode versions installed?
...e. It's a ball-ache, but seems to work.
This shell script simplifies it a bit…
xcode-version.sh
cd /Applications
if [[ $1 = "-8" ]]
then
if [ -e Xcode_8.app ]
then
mv Xcode.app Xcode_7.app
mv Xcode_8.app Xcode.app
echo "Switched to Xcode 8"
el...
Tree data structure in C#
...ded. An Extensive Examination of Data Structures Using C# 2.0 explains a bit about why. Is there a convenient library which is commonly used to provide this functionality? Perhaps through a strategy pattern to solve the issues presented in the article.
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What's an easy way to read random line from a file in Unix command line?
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You can extend this to 30-bit random numbers by using (${RANDOM} << 15) + ${RANDOM}. This significantly reduces the bias and allows it to work for files containing up to 1 billion lines.
– nneonneo
Jun 19 '...
Is there a difference between x++ and ++x in java?
... code and adding "yet another answer" :-)
To be accurate (and probably, a bit pedantic),
int y = 2;
y = y++;
is compiled into:
int y = 2;
int tmp = y;
y = y+1;
y = tmp;
If you javac this Y.java class:
public class Y {
public static void main(String []args) {
int y = 2;
y ...