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How can I use NSError in my iPhone App?
...ies) {
// sad, we can't solve world hunger, but we can let people know what went wrong!
// init dictionary to be used to populate error object
NSMutableDictionary* details = [NSMutableDictionary dictionary];
[details setValue:@"ran out of money" forKey:NSLocalizedDesc...
Writing unit tests in Python: How do I start? [closed]
I completed my first proper project in Python and now my task is to write tests for it.
7 Answers
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What's the difference between Task.Start/Wait and Async/Await?
...er, a friend walks in and sits down next to you and starts a conversation. Now you have two choices. You can ignore your friend until the task is complete -- you can wait until your soup arrives and do nothing else while you are waiting. Or you can respond to your friend, and when your friend stops ...
PHP Pass by reference in foreach [duplicate]
... the output I was able to understand: $v gets the item [0](zero). $a[3] is now zero $v gets the item [1](one). $a[3] is now one $v gets the item [2](two). $a[3] is now two $v gets the item [3](two). $a[3] is now two
– Eduardo
Sep 2 '13 at 2:18
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How to empty a Heroku database
...e, if you are using SHARED_DATABASE_URL:
$ heroku pg:reset DATABASE_URL
Now to recreate the database with nothing in it:
$ heroku run rake db:migrate
To populate the database with your seed data:
$ heroku run rake db:seed
---OR---
You can combine the last two (migrate & seed) into on...
How can I change the version of npm using nvm?
...nce this question was first answered, as noted in a newer answer, there is now a command for this:
nvm now has a command to update npm. It's nvm install-latest-npm or nvm install --latest-npm.
nvm install-latest-npm: Attempt to upgrade to the latest working npm on the current node version
nvm...
Remove large .pack file created by git
... a load of files in to a branch and merged and then had to remove them and now I'm left with a large .pack file that I don't know how to get rid of.
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Stopwatch vs. using System.DateTime.Now for timing events [duplicate]
...mance of my code so I stored the start and end time using System.DateTime.Now . I took the difference between the two as the time my code to execute.
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JavaScript by reference vs. by value [duplicate]
...false
Example 2:
var a = ["1", "2", {foo:"bar"}];
var b = a[1]; // b is now "2";
var c = a[2]; // c now references {foo:"bar"}
a[1] = "4"; // a is now ["1", "4", {foo:"bar"}]; b still has the value
// it had at the time of assignment
a[2] = "5"; // a is now ["1", "4", "5"]; c st...
is there a css hack for safari only NOT chrome?
im trying to find a css hack for just safari NOT chrome, i know these are both webkit browsers but im having problems with div alignments in chrome and safari, each displays differently.
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