...e info every time user logs in to the system, I also use database in the phone. For all those operations (updates, retrieving data from db and etc.) I use async tasks. As up till now I didn't see why I shouldn't use them, but recently I experienced that if I do some operations some of my async tasks...

...s of looping and break does not work for you (because you want to continue one of the upper loops, not the one right above the current one), you can do one of the following Refactor the loops you want to escape from into a function def inner(): for j in ...: for k in ...: i...

I would like to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list...

On Github, you can make pull requests to add functionality to a project. One's contributions have to be on a branch that, if the request is accepted, will be merged into the master branch (or an analogous one) of the project. ...

...ode should check a database for a page with a certain id slug. If it finds one render it! if it doesn't find one then ignore this route handler and check for other ones. So next() with no arguments allows to pretend you didn't handle the route so that something else can pick it up instead. Or a ...

... hook for this Don't do it this way. You don't want "middleware" for a one-time startup thing. You want to execute code in the top-level urls.py. That module is imported and executed once. urls.py from django.confs.urls.defaults import * from my_app import one_time_startup urlpatterns = ......

I'm trying to find a way to combine two columns into one, but keep getting the value '0' in the column instead to the combination of the words. ...

...ead the messages and I do not care who reads them This is signing, it is done with your private key. I want to be able to encrypt certain information and use it as a product key for my software. I only care that I am the only one who can generate these. If you only need to know it to yourself, yo...

...var tid = setInterval(function(){ //called 5 times each time after one second //before getting cleared by below timeout. alert("I am setInterval"); },1000); //delay is in milliseconds alert("after setInterval"); //called second setTimeout(function(){ clearInterv...

... That's fine for a one-off, but in a data.frame with a large number of columns, you get to do that on every column that is a factor ... leading to the need for a function such as drop.levels() from gdata. – Dirk Eddelbuett...