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Replacing NAs with latest non-NA value
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@Ruben Thanks again for your report. By now the bug is fixed on R-Forge. Also I have tweaked and exported the workhorse function na.locf0 which is now similar in scope and performance to your repeat_last function. The clue was to use diff rather than cumsum and avo...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
...ations. But you do need to be able to visualize the different branches to know what's going on. Since the Git server and local repo are just Git, any git client can help you out here. SourceTree is an option here. The Git for Windows client is another.
For standard operations, check-in, check-out,...
How to TryParse for Enum value?
...date
As mentioned by Lisa and Christian in the comments, Enum.TryParse is now available for C# in .NET4 and up.
MSDN Docs
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WebRTC - scalable live stream broadcasting / multicasting
...s a key negotiation: B transmits securely (encrypted streams) to Janus.
Now, when attendees connect, they connect to Janus, again: WebRTC negotiation, secured keys, etc. From now on, Janus will emit back the streams to each attendees.
This works well because the broadcaster (B) only uploads it...
are there dictionaries in javascript like python?
...l Map object (i.e. "There are no real associative arrays in Javascript" is now incorrect).
– robocat
Oct 4 '16 at 22:29
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Check if a temporary table exists and delete if it exists before creating a temporary table
...olumn later, it will give an error saying "invalid column". Please let me know what I am doing wrong.
15 Answers
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Does ARC support dispatch queues?
...he short answer: YES, ARC retains and releases dispatch queues.
And now for the long answer…
If your deployment target is lower than iOS 6.0 or Mac OS X 10.8
You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage them.
If your deployment target is iOS 6...
When should I use Kruskal as opposed to Prim (and vice versa)?
...average case is dependent on what you're proving. In fact (as I look it up now), the wiki article uses language that implies that its only used for worst-case analysis. Now, using such an analysis means that you can't make as strong promises about the cost of a particular operation, but by the time...
querySelector search immediate children
...= this.id; // remember current element id
this.id = 'ID_' + Date.now(); // assign new unique id
selectors = selectors.replace(/((^|,)\s*):scope/g, '$1#' + this.id); // replace :scope with #ID
var result = doc[method](selectors);
this.id = id; // restore previo...
Safely limiting Ansible playbooks to a single machine?
...Note the comma (,) at the end; this signals that it's a list, not a file.
Now, this won't protect you if you accidentally pass a real inventory file in, so it may not be a good solution to this specific problem. But it's a handy trick to know!
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