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How do you add an in-app purchase to an iOS application?
... code but are using Swift in your app, you can do the following:
Create a new .h (header) file by going to File > New > File... (Command ⌘ + N). This file will be referred to as "Your .h file" in the rest of the tutorial
When prompted, click Create Bridging Header. This will be our bridgin...
Git add all files modified, deleted, and untracked?
...rsion 2.x.
You want git add -A:
git add -A stages All;
git add . stages new and modified, without deleted;
git add -u stages modified and deleted, without new.
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How to update a value, given a key in a hashmap?
...method and supply it a mapping function, which will be called to compute a new value based on existing one.
For example,
Map<String, Integer> words = new HashMap<>();
words.put("hello", 3);
words.put("world", 4);
words.computeIfPresent("hello", (k, v) -> v + 1);
System.out.println(w...
Checking if an object is null in C#
...taList.
You need to create one with
public List<Object> dataList = new List<Object>();
Even better: since it's a field, make it private. And if there's nothing preventing you, make it also readonly. Just good practice.
Aside
The correct way to check for nullity is if(data != null)....
What is the best way to compute trending topics or tags?
...topics in the last 24h". For example, Topix.com shows this in its section "News Trends". There, you can see the topics which have the fastest growing number of mentions.
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Appending to an existing string
... because widget.notes.where(:author_id => a).first presumably returns a new object each time, which will have its own independent string.
– sepp2k
Dec 21 '12 at 11:44
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How can I get the ID of an element using jQuery?
...nd prop() was added in 1.6, so I'm assuming your comment was prop() is the new way.
– Erik Philips
Jan 5 '15 at 23:05
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Deleting all files from a folder using PHP?
...h using the Standard PHP Library (SPL).
$dir = "path/to/directory";
$di = new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS);
$ri = new RecursiveIteratorIterator($di, RecursiveIteratorIterator::CHILD_FIRST);
foreach ( $ri as $file ) {
$file->isDir() ? rmdir($file) : unlink(...
Parsing CSV files in C#, with header
...use - kudos to the team. I'm planning a blog on it soon and btw - Love the new site - well done!
– Sudhanshu Mishra
Jul 22 '15 at 23:52
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Easiest way to read from and write to files
... a file to write to.
string createText = "Hello and Welcome" + Environment.NewLine;
File.WriteAllText(path, createText);
...
// Open the file to read from.
string readText = File.ReadAllText(path);
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