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how to convert binary string to decimal?
...ave misunderstood what the parseInt. I thought it would convert the string from base 10 -> whatever (thinking like parseInt('5612', 2) would return its binary form ;).
– srph
Mar 17 '15 at 13:54
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Why use Dijkstra's Algorithm if Breadth First Search (BFS) can do the same thing faster?
Both can be used to find the shortest path from single source. BFS runs in O(E+V) , while Dijkstra's runs in O((V+E)*log(V)) .
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RE error: illegal byte sequence on Mac OS X
...s on demand:
Standard utility iconv can be used to convert to (-t) and/or from (-f) encodings; iconv -l lists all supported ones.
Examples:
Convert FROM ISO-8859-1 to the encoding in effect in the shell (based on LC_CTYPE, which is UTF-8-based by default), building on the above example:
# Conv...
Async/await vs BackgroundWorker
...ow, you could use TPL instead:
var synchronizationContext = TaskScheduler.FromCurrentSynchronizationContext();
Task.Factory.StartNew(() =>
{
int i = 0;
// simulate lengthy operation
Stopwatch sw = Stopw...
How to try convert a string to a Guid [duplicate]
...er something by Guid (since its primary key in a table) what will you send from the front in a request? Most likely a string in URL, but on back in the controller you would most like wanna use it as Guid. As for speed comparison: stackoverflow.com/questions/713109/…
– DanteTh...
The cause of “bad magic number” error when loading a workspace and how to avoid it?
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Also worth noting the following from a document by the R Core Team summarizing changes in versions of R after v3.5.0 (here):
R has new serialization format (version 3) which supports custom serialization of
ALTREP framework objects... Serialized data in fo...
The way to check a HDFS directory's size?
...iles. Without the -s option, the calculation is done by going 1-level deep from the given path.
The -h option will format file sizes in a human-readable fashion (e.g 64.0m instead of 67108864)
The -v option will display the names of columns as a header line.
The -x option will exclude snapshots from...
How to center buttons in Twitter Bootstrap 3?
...ent, the element does not know the point to work out this auto calculation from so will not center itself as anticipated.
See an example of the code above here: https://jsfiddle.net/Seany84/2j9pxt1z/
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What's the state of the art in email validation for Rails?
...ted:
/\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/
That was adapted from http://www.regular-expressions.info/email.html -- which you should read if you really want to know all the tradeoffs. If you want a more correct and much more complicated fully RFC822-compliant regex, that's on that pag...
How is location accuracy measured in Android?
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By this time the GPS will be on. The GPS device needs at least 30 seconds from a cold start to get a fix, so if can get a fix it will return latitude and longitude but again with an accuracy, which will be the highest possible for an example 100 meters. The longer the GPS works, the better accuracy...