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javac : command not found
...k for javac existence do:
> updatedb
> locate javac
preferably as root. If it's not there you've probably only installed the Java runtime (JRE) and not the Java Development Kit (JDK). You're best off getting this from the Oracle site: as the Linux repos may be slightly behind with latest ve...
How to check whether mod_rewrite is enable on server?
...
To check if mod_rewrite module is enabled, create a new php file in your root folder of your WAMP server. Enter the following
phpinfo();
Access your created file from your browser.
CtrlF to open a search. Search for 'mod_rewrite'. If it is enabled you see it as 'Loaded Modules'
If not, open httpd...
In PHP, how do you change the key of an array element?
...y is built from a database query, you can change the key directly from the mysql statement:
instead of
"select ´id´ from ´tablename´..."
use something like:
"select ´id´ **as NEWNAME** from ´tablename´..."
shar...
Finding last occurrence of substring in string, replacing that
...his reverses the replacement string too. Other than that, it's a repeat of root's answer, and, as I say there, pretty inefficient.
– Gareth Latty
Jan 24 '13 at 7:39
...
How to move files from one git repo to another (not a clone), preserving history
...ou want to move the file or folder from, moving that file or folder to the root, rewriting Git history, cloning the target repository and pulling the file or folder with history directly into this target repository.
Stage One
Make a copy of repository A as the following steps make major
changes t...
What does middleware and app.use actually mean in Expressjs?
...lowing code loads the myLogger middleware function before the route to the root path (/).
var express = require('express')
var app = express()
var myLogger = function (req, res, next) {
console.log('LOGGED')
next()
}
app.use(myLogger)
app.get('/', function (req, res) {
res.send('Hello Worl...
possible EventEmitter memory leak detected
... warning appears mostly because of some buggy codes. In my case it was the mysql code. I will try to put an answer just to give a clarity for that.
– Adrian
Mar 3 at 3:54
add ...
error_log per Virtual Host?
...ike this:
<VirtualHost *:80>
ServerName example.com
DocumentRoot /var/www/domains/example.com/html
ErrorLog /var/www/domains/example.com/apache.error.log
CustomLog /var/www/domains/example.com/apache.access.log common
php_flag log_errors on
php_flag display_errors on
...
How to Join to first row
...ved table whichever way you want and use TOP 1 in SQL Server or LIMIT 1 in MySQL
– stifin
Jun 9 '15 at 10:39
add a comment
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Ruby convert Object to Hash
...> 15.95 }}
If you need a hash that's stored in the object use as_json(root: false). I think by default root will be false. For more info refer official ruby guide
http://api.rubyonrails.org/classes/ActiveModel/Serializers/JSON.html#method-i-as_json
...