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What characters can be used for up/down triangle (arrow without stem) for display in HTML?
.../wiki/Arrow_%28symbol%29#Arrows_in_Unicode
http://en.wikipedia.org/wiki/Geometric_Shapes
Lastly, these arrows are not ASCII, including ↑ and ↓: they are Unicode.
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How do I pass a unique_ptr argument to a constructor or a function?
...mantics in C++11 and I don't know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself:
...
Sample settings.xml for maven
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Here's the stock "settings.xml" with comments (complete/unchopped file at the bottom)
License:
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE f...
Git and Mercurial - Compare and Contrast
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Disclaimer: I use Git, follow Git development on git mailing list, and even contribute a bit to Git (gitweb mainly). I know Mercurial from documentation and some from discussion on #revctrl IRC channel on FreeNode.
Thanks to all peo...
App Inventor 2 扩展 · App Inventor 2 中文网
...to use extension components
2.1 Importing extension components
2.2 Some sample extensions to try
2.3 Building projects with extension components
2.4 Deleting extension components
2.5 Sharing projects that use extension components
2.6 Extension component repositories
2.7 Naming extension c...
How do you add an in-app purchase to an iOS application?
...ble. If you were going to send a physical item to the user, or give them something that they can buy more than once, you would choose consumable.
For the reference name, put whatever you want (but make sure you know what it is)
For product id put tld.websitename.appname.referencename this will work ...
Regular expression to match non-ASCII characters?
... in the ASCII character set (0-127, i.e. 0x0 to 0x7F).
You can do the same thing with Unicode:
[^\u0000-\u007F]+
For unicode you can look at this 2 resources:
Code charts list of Unicode ranges
This tool to create a regex filtered by Unicode block.
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Why does modern Perl avoid UTF-8 by default?
...eclare that this source unit is encoded as UTF‑8. Although once upon a time this pragma did other things, it now serves this one singular purpose alone and no other:
use utf8;
Declare that anything that opens a filehandle within this lexical scope but not elsewhere is to assume that that stream ...
Is CSS Turing complete?
... interactions to be part of the “execution” of CSS. A pretty good implementation is available, and another implementation is included here:
body {
-webkit-animation: bugfix infinite 1s;
margin: 0.5em 1em;
}
@-webkit-keyframes bugfix { from { padding: 0; } to { padding: 0; } }
...
How does Google Instant work?
...doing an Ajax GET request on every keypress:
I guess it's working the same way as the auto completion. However this time, it also returns the search results of the partially complete search phrase in JSON format.
Examining one of the JSON responses while typing "Stack Overflow":
We can see th...