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jQuery trigger file input
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This is due to a security restriction.
I found out that the security restriction is only when the <input type="file"/> is set to display:none; or is visbilty:hidden.
So i tried positioning it outside the viewport by setting position:absolu...
CSV in Python adding an extra carriage return, on Windows
It generates a file, test.csv , with an extra \r at each row, like so:
7 Answers
7
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How to get child element by class name?
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Use doc.childNodes to iterate through each span, and then filter the one whose className equals 4:
var doc = document.getElementById("test");
var notes = null;
for (var i = 0; i < doc.childNodes.length; i++) {
if (doc.childNodes[i].classNa...
How to override the properties of a CSS class using another CSS class
...ave
.left { background: blue }
e.g. any of the following would override it:
a.background-none { background: none; }
body .background-none { background: none; }
.background-none { background: none !important; }
The first two “win” by selector specificity; the third one wins by !important, a...
Passing multiple error classes to ruby's rescue clause in a DRY fashion
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You can use an array with the splat operator *.
EXCEPTIONS = [FooException, BarException]
begin
a = rand
if a > 0.5
raise FooException
else
raise BarException
end
rescue *EXCEPTIONS
puts "rescued!"
end
If you are going to ...
Check if array is empty or null
...k if an array is empty or null in jQuery. I tried array.length === 0 but it didn't work. It did not throw any error either.
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Consequences of using graft in Mercurial
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When you update to D and graft F::J, Mercurial runs a number of merges. It will start with this merge:
M = three_way_merge(local=D, other=F, base=E)
If we write +d for the delta between the states C and D, then we start with:
+d +e +f
---- C ---- D ---- E ---- F ----
Turn th...
Mongoose indexing in production code
...x calls will simply see that the index already exists and then return. So it only has an effect on performance when you're first creating the index, and at that time the collections are often empty so creating an index would be quick anyway.
My suggestion is to leave autoIndex enabled unless you h...
How to turn off caching on Firefox?
...velopment I have to "clear cache" in Firefox all the time in order to make it use the latest version of JavaScript files.
1...
mongo - couldn't connect to server 127.0.0.1:27017
I am coming from riak and redis where I never had an issue with this services starting, or to interact.
38 Answers
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