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What is the difference between typeof and instanceof and when should one be used vs. the other?
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A good reason to use typeof is if the variable may be undefined.
alert(typeof undefinedVariable); // alerts the string "undefined"
alert(undefinedVariable instanceof Object); // throws an exception
A good reason to use instanceof is if the variable may be null.
var myNullVar = null;
ale...
How to change theme for AlertDialog
...was wondering if someone could help me out. I am trying to create a custom AlertDialog. In order to do this, I added the following line of code in styles.xml
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How do I declare a namespace in JavaScript?
How do I create a namespace in JavaScript so that my objects and functions aren't overwritten by other same-named objects and functions? I've used the following:
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Android Notification Sound
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USE Can Codeding
String en_alert, th_alert, en_title, th_title, id;
int noti_all, noti_1, noti_2, noti_3, noti_4 = 0, Langage;
class method
Intent intent = new Intent(context, ReserveStatusActivity.class);
PendingIntent pendingIntent = PendingInte...
RVM is not a function, selecting rubies with 'rvm use …' will not work
...f course you will need the following in your ~/.profile [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"
– nadersoliman
Sep 3 '14 at 4:30
3
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How does facebook, gmail send the real time notification?
...ty interesting.
A common method of doing such notifications is to poll a script on the server (using AJAX) on a given interval (perhaps every few seconds), to check if something has happened. However, this can be pretty network intensive, and you often make pointless requests, because nothing has ...
Get value from hidden field using jQuery
...t type="hidden" value="" id='h_v' class='h_v'> Using jQuery I want to alert the user to this value .
7 Answers
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How can I read command line parameters from an R script?
I've got a R script for which I'd like to be able to supply several command-line parameters (rather than hardcode parameter values in the code itself). The script runs on Windows.
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Is it possible to have a Subversion repository as a Git submodule?
...DIR=. git svn fetch
git gc
This sets up my bare repo, then I have a cron script to update it:
#!/usr/bin/python
import os, glob
GIT_HOME='/var/www/git'
os.chdir(GIT_HOME)
os.environ['GIT_DIR']='.'
gits = glob.glob('*.git')
for git in gits:
if not os.path.isdir(git):
continue
os.chdir(o...
Timeout function if it takes too long to finish [duplicate]
I have a shell script that loops through a text file containing URL:s that I want to visit and take screenshots of.
2 Answe...