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Check if my app has a new version on AppStore
...ent is misleading. If the version on the user's device is separated by any from the version on the appstore then the code will return YES as expected. Even if you release version 1.0 followed by version 1.111 it would still work perfectly.
– datinc
Nov 23 '15 a...
When should I use the Visitor Design Pattern? [closed]
... sure they do explain it – it’s the same advantage that you always get from subclassing / runtime polymorphism over switch: switch hard-codes the decision making at the client side (code duplication) and doesn’t offer static type checking (check for completeness and distinctness of cases etc.)...
Git commit in terminal opens VIM, but can't get back to terminal
...c>:wq
or
<Esc>:x
or
<Esc>ZZ
The Esc key returns you from insert mode to normal mode.
The :wq, :x or ZZ sequence writes the changes and exits the editor.
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Constant pointer vs Pointer to constant [duplicate]
... the declaration like this which make it easy to read and understand (read from right to left):
int const *ptr; // ptr is a pointer to constant int
int *const ptr; // ptr is a constant pointer to int
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Create a new Ruby on Rails application using MySQL instead of SQLite
...sql database, go to cd another_name/config/ and copy the database.yml file from this new app. Paste it into the database.yml of your_app_name app. But ensure to change the database names and set username/password of your database accordingly in the database.yml file after doing so.
OR
Go to cd y...
Rule-of-Three becomes Rule-of-Five with C++11?
...and the most concise option. The prohibition ("- it shall not be virtual") from n3242 is not present anymore in n3290 and GCC allows it while previously it didn't.
– Luc Danton
Sep 21 '11 at 18:18
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How can I find where I will be redirected using cURL?
...re, and just use Curl to grab the headers and extract the Location: header from them:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec(...
How can I read a text file in Android?
I want to read the text from a text file. In the code below, an exception occurs (that means it goes to the catch block). I put the text file in the application folder. Where should I put this text file (mani.txt) in order to read it correctly?
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How to detect UI thread on Android?
....currentThread()) {
// On UI thread.
} else {
// Not on UI thread.
}
From API level 23 and up, there's a slightly more readable approach using new helper method isCurrentThread on the main looper:
if (Looper.getMainLooper().isCurrentThread()) {
// On UI thread.
} else {
// Not on UI threa...
Django development IDE [closed]
...
There is PyCharm from JetBrains which supports Django and Google Apps. It looks promising.
Note: You need to buy a license for the Professional version if you want Django support. The Community version desn't support Django.
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