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What does the “===” operator do in Ruby? [duplicate]
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Just like with every other method in Ruby (or actually pretty much any object-oriented language),
a === b
means whatever the author of a's class wants it to mean.
However, if you don't want to confuse the heck out of your colleagues, the convention is that === is the cas...
Java Error opening registry key
...er removing the "java" executables from my system32 folder, I had to reinstall the JRE. After that, my problem was solved. Thanks for the starting point.
– dangowans
Dec 24 '13 at 18:31
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Value cannot be null. Parameter name: source
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Make sure you are injecting the repository into the service's constructor. That solved it for me. ::smacks forehead::
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How to run a python script from IDLE interactive shell?
...s.call(['python', 'helloworld.py']) # Just run the program
subprocess.check_output(['python', 'helloworld.py']) # Also gets you the stdout
With arguments:
subprocess.call(['python', 'helloworld.py', 'arg'])
Read the docs for details :-)
Tested with this basic helloworld.py:
import sys
if le...
How do I adb pull ALL files of a folder present in SD Card
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The scripts will start in the top folder and recursively go down and find all the "*.jpg" files and pull them from your phone to the current directory.
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Calling a function within a Class method?
...c function newTest(){
$this->bigTest();
$this->smallTest();
}
private function bigTest(){
//Big Test Here
}
private function smallTest(){
//Small Test Here
}
public function scoreTest(){
//Scoring code here;
...
Error 1022 - Can't write; duplicate key in table
...ou can not have the same foreign key names in the database tables.
Check all your tables and all your foreign keys and avoid having two foreign keys with the same exact name.
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Daylight saving time and time zone best practices [closed]
...de, rather than globally through config file settings or defaults.
Use NTP services on all servers.
If using FAT32, remember that timestamps are stored in local time, not UTC.
When dealing with recurring events (weekly TV show, for example), remember that the time changes with DST and will be differ...
JSLint is suddenly reporting: Use the function form of “use strict”
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No, it suddenly happened because the online JSLint service added that feature in 2010 when the question was asked.
– Quentin
Aug 9 '16 at 10:49
add a c...
How to select multiple files with ?
...ltiple="multiple"
and if you are using php then you will get the data in $_FILES and
use var_dump($_FILES) and see output and do processing
Now you can iterate over and do the rest
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