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How to sort an array in Bash
...=($(sort <<<"${array[*]}"))
unset IFS
Supports whitespace in elements (as long as it's not a newline), and works in Bash 3.x.
e.g.:
$ array=("a c" b f "3 5")
$ IFS=$'\n' sorted=($(sort <<<"${array[*]}")); unset IFS
$ printf "[%s]\n" "${sorted[@]}"
[3 5]
[a c]
[b]
[f]
Note: @s...
What is the purpose of `text=auto` in `.gitattributes` file?
...e is of form:
pattern attr1 attr2 ...
So here, the pattern is *, which means all files, and the attribute is text=auto.
What does text=auto do? From the documentation:
When text is set to "auto", the path is marked for automatic end-of-line normalization. If Git decides that the content is ...
Should I hash the password before sending it to the server side?
...this important matter. There is so much misinformation here
The OP never mentioned sending the password in clear over HTTP - only HTTPS, yet many seem to be responding to the question of sending a password over HTTP for some reason. That said:
I believe passwords should never be retained (let a...
Android: textColor of disabled button in selector not showing?
...ferent states.
Do the following:
Create another XML file in res\color named something like text_color.xml.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- disabled state -->
<item android:state_enabled="fa...
Do checkbox inputs only post data if they're checked?
...viour is the value is only sent if the checkbox is checked. This typically means you need to have a way of remembering what checkboxes you are expecting on the server side since not all the data comes back from the form.
The default value is always "on", this should be consistent across browsers.
...
Optimistic vs. Pessimistic locking
...d the differences between optimistic and pessimistic locking. Now could someone explain to me when I would use either one in general?
...
When to use SELECT … FOR UPDATE?
Please help me understand the use-case behind SELECT ... FOR UPDATE .
2 Answers
2
...
What is the difference between JAX-RS and JAX-WS?
...quest like JAX-WS?
1) I don't know if the JAX-RS API includes a specific mechanism for asynchronous requests, but this answer could still change based on the client implementation you use.
Can JAX-RS access a web service that is not running on the Java platform, and vice versa?
2) I can't t...
Why functional languages? [closed]
...cal functions it's easy to translate those into functional languages. In some cases, this can make code more readable.
Traditionally, one of the big disadvantages of functional programming was also the lack of side effects. It's very difficult to write useful software without IO, but IO is hard to ...
Create a custom event in Java
I want to do something like this in Java but I don't know the way:
4 Answers
4
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