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How to show math equations in general github's markdown(not github's blog)

...portant word being "secure" there, considering your question :). Indeed, allowing javascript to be executed would be a bit off of the MarkDown standard text-to-HTML contract. Moreover, everything that looks like a HTML tag is either escaped or stripped out. Tell me how to show math symbols in...
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Objective-C: Where to remove observer for NSNotification?

...his is obviously not a satisfying answer. I'd recommend, that you add a call [notificationCenter removeObserver: self] in method dealloc of those classes, which you intend to use as observers, as it is the last chance to unregister an observer cleanly. This will, however, only protect you against ...
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When to encode space to plus (+) or %20?

...value is query value with a space, but the folder name in the path is literally foo+bar, not foo bar. %20 is a valid way to encode a space in either of these contexts. So if you need to URL-encode a string for inclusion in part of a URL, it is always safe to replace spaces with %20 and pluses with ...
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Does a finally block always run?

...led. Is there a catch that I am missing? download.oracle.com/docs/cd/E17476_01/javase/1.5.0/docs/guide/… – spurserh Jul 18 '10 at 14:40 ...
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Python: How to create a unique file name?

... I didn't think your question was very clear, but if all you need is a unique file name... import uuid unique_filename = str(uuid.uuid4()) share | improve this answer ...
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How do I manage MongoDB connections in a Node.js web application?

...there are multiple database.. should i open a connection for each database all together. If not, Is it OK to open and close when required? – Aman Gupta Oct 25 '16 at 14:19 ...
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Is it possible to use a div as content for Twitter's Popover

...ing if there was anyway to put a <div> inside the popover. Potentially, I would like to use php and mysql in there, but if i could get a div to work i think i can figure out the rest. I tried setting data-content to a div ID, but it didnt work. ...
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Deleting Row in SQLite in Android

... and I can't seem to figure this out. I have 1 table that has columns KEY_ROWID , KEY_NAME , KAY_LATITUDE , and KEY_LONGITUDE . I want the user to be able to select one and delete it; Can anyone give me a direction to start in? My question is in the actual deletion of the row given only its n...
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warning: incompatible implicit declaration of built-in function ‘xyz’

...an page says this function is a GNU extension and synopsis shows: #define _GNU_SOURCE #include <string.h> When #define is added to my source before the #include, declarations for the GNU extensions are made visible and warnings disappear. ...
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What is the difference between GitHub and gist?

... A repository is for user-created files. A gist is for a piece of code (usually unconnected to other code), like for discussing or giving examples. – Kerrek SB Jul 3 '13 at 8:01 19...