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Difference between if () { } and if () : endif;
... alternate syntax. One nice thing about the braces is that most IDEs, vim, etc all have bracket highlighting. In my text editor I can double click a brace and it will highlight the whole chunk so I can see where it ends and begins very easily.
I don't know of a single editor that can highlight endi...
Rearrange columns using cut
...anges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once.
It reaches field 1 first, so that is printed, followed by field 2.
Use awk instead:
awk '{ print $2 " " $1}' file.txt
...
How can I print literal curly-brace characters in python string and also use .format on it?
...
But the order of the keys in a Python object isn't guaranteed... Still, the JSON library is guaranteed to serialise in a JSON way.
– wizzwizz4
Jun 30 '18 at 8:34
...
Error to run Android Studio
...javac 1.8.0_91
Finally, add JAVA_HOME to the environment variable
Edit /etc/environment and add JAVA_HOME=/usr/lib/jvm/java-8-oracle to the end of the file
sudo nano /etc/environment
Append to the end of the file
JAVA_HOME=/usr/lib/jvm/java-8-oracle
You will then have to reboot, you can do ...
How to use Servlets and Ajax?
... already autodetects it based on response's Content-Type header.
Then, in order to process the JSON object in the servlet which isn't being sent as individual request parameters but as a whole JSON string the above way, you only need to manually parse the request body using a JSON tool instead of u...
Inverse dictionary lookup in Python
...
@BrianJack: Dictionaries are not ordered, like sets. Look at collections.OrderedDict for an implementation that is ordered.
– Martijn Pieters♦
Jul 24 '12 at 14:40
...
What's the difference between SortedList and SortedDictionary?
...--------+---------+
* Insertion is O(1) for data that are already in sort order, so that each
element is added to the end of the list (assuming no resize is required).
From an implementation perspective:
+------------+---------------+----------+------------+------------+------------------+
| ...
Having Django serve downloadable files
... header too.
# You can also set any other required headers: Cache-Control, etc.
return response
Of course, this will only work if you have control over your server, or your hosting company has mod_xsendfile already set up.
EDIT:
mimetype is replaced by content_type for django 1.7
response =...
Using Razor within JavaScript
...pe="text/javascript">
// Some JavaScript code here to display map, etc.
// Now add markers
@foreach (var item in Model) {
<text>
var markerlatLng = new google.maps.LatLng(@(Model.Latitude), @(Model.Longitude));
var title = '@(Model.Title)';
...
Execute and get the output of a shell command in node.js
...nc function main() {
try {
const passwdContent = await execute("cat /etc/passwd");
console.log(passwdContent);
} catch (error) {
console.error(error.toString());
}
try {
const shadowContent = await execute("cat /etc/shadow");
console.log(shadowContent);
} catch (erro...