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When to use std::begin and std::end instead of container specific versions [duplicate]
...references or rules that explain when container specific versions of begin and end should be used instead of free functions std::begin and std::end ?
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UIActivityViewController crashing on iOS 8 iPads
... Xcode 6 (Beta 6). UIActivityViewController works fine with iPhone devices and simulators but crashes with iPad simulators and devices (iOS 8) with following logs
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Difference between “git add -A” and “git add .”
The command git add [--all|-A] appears to be identical to git add . . Is this correct? If not, how do they differ?
11 An...
CASCADE DELETE just once
... with the ON DELETE CASCADE rule. Is there any way I can perform a delete and tell Postgresql to cascade it just this once? Something equivalent to
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JPG vs. JPEG image formats
I often use JPEG images, and I have noticed that there are two very similar file extensions: .jpg , which my mobile's camera and the Preview application use, and .jpeg , with which Image Capture saves the images from scanning with my Canon MX455 printer. LaTeX doesn't seem to distinguish...
Defining a HTML template to append using JQuery
...of a templating engine in your project, such as:
mustache
underscore.js
handlebars
If you don't want to include another library, John Resig offers a jQuery solution, similar to the one below.
Browsers and screen readers ignore unrecognized script types:
<script id="hidden-template" type="...
What is the difference between null and undefined in JavaScript?
I want to know what the difference is between null and undefined in JavaScript.
33 Answers
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Accessing dict keys like an attribute?
... Unless - of course - you assign some value to them, see below)
Attributes and items are always in sync
Trying to access non-existent key as an attribute correctly raises AttributeError instead of KeyError
Supports [Tab] autocompletion (e.g. in jupyter & ipython)
Cons:
Methods like .keys() wil...
How can I make a TextArea 100% width without overflowing when padding is present in CSS?
I have the following CSS and HTML snippet being rendered.
15 Answers
15
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How do BitTorrent magnet links work?
... I used a magnet link . Curious about how it works, I looked up the specs and didn't find any answers. The wiki says xt means "exact topic" and is followed by the format ( btih in this case) with a SHA1 hash. I saw base32 mentioned, knowing it's 5 bits per character and 32 characters, I found it...