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...vis Northcutt
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Best data type to store money values in MySQL
... integer gives certainty that your application will not incur that kind of error. This may not be the best solution though. I arrived at this page while researching solutions and I'm not done yet.
– Gary Ott
Jun 2 '17 at 9:00
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PostgreSQL - Rename database
...er clients connected to the database at the time. Lastly, try posting the error message it returns so we can get a bit more information.
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What is the best Java email address validation method? [closed]
...ache COmmons: "This implementation is not guaranteed to catch all possible errors in an email address." And I said what you have to do to "ensure it's a real email". Addresses with local IPs could be valid in rare environments, though.
– Matthew Flaschen
Oct ...
How to show popup message like in Stack Overflow
...e popup messages.
var showNotification=function(jClicked,msg){master.showErrorPopup(jClicked.parent(),msg)};
var showFadingNotification=function(jClicked,msg){master.showErrorPopup(jClicked.parent(),msg,true)};
//master...
showErrorPopup: function (e, h, f) {
var g = $('<div class="error-n...
Finding all cycles in a directed graph
...lem. Some of them are listed in this article:
http://dx.doi.org/10.1137/0205007
According to the article, Johnson's algorithm is the fastest one.
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How can I specify a branch/tag when adding a Git submodule?
...and after doing $ git submodule update --init --remote TestModule I got an error saying fatal: Needed a single revision and Unable to find current origin/TestTag revision in submodule path 'TestModule'. When doing it with a real branch it works. Is there anyway to specify a tag in .gitmodules withou...
How to increase request timeout in IIS?
...anged debug to false days ago and didn't associate it with all the timeout errors I'd been receiving. Now I know.
– Doug S
Oct 31 '15 at 4:45
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Remove columns from dataframe where ALL values are NA
...able(bd)
system.time({df1 <- bd[,colSums(is.na(bd) < nrow(bd))]})
# error -- can't allocate vector of size ...
system.time({df2 <- bd[, !apply(is.na(bd), 2, all)]})
# error -- can't allocate vector of size ...
system.time({df3 <- Filter(function(x)!all(is.na(x)), bd)})
## user system e...
What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?
...ut myself, so take this with some skepticism and forgive me if it contains errors.
setNeedsLayout is an easy one: it just sets a flag somewhere in the UIView that marks it as needing layout. That will force layoutSubviews to be called on the view before the next redraw happens. Note that in many ...