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How do I send a cross-domain POST request via JavaScript?
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Update: Before continuing everyone should read and understand the html5rocks tutorial on CORS. It is easy to understand and very clear.
If you control the server being POSTed, simply leverage the "Cross-Origin Resource Sharing standard" by setting response headers on the server. This answer is di...
How do I load the contents of a text file into a javascript variable?
...a text file in the root of my web app http://localhost/foo.txt and I'd like to load it into a variable in javascript.. in groovy I would do this:
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Finding duplicate values in MySQL
I have a table with a varchar column, and I would like to find all the records that have duplicate values in this column. What is the best query I can use to find the duplicates?
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Make $JAVA_HOME easily changable in Ubuntu [closed]
In Ubuntu, I'd like to switch my JAVA_HOME environment variable back and forth between Java 5 and 6.
8 Answers
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How to perform Unwind segue programmatically?
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1) "File's Owner" -- isn't that old terminology? It worked for me to control drag from the view controller to its Exit icon. 2) Though it ought to be obvious, Xcode is looking for a declaration in the Interface of the IBAction which takes a UIStoryboardSegue argument; the WWDC 20...
Why does Javascript getYear() return 108?
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It's a Y2K thing, only the years since 1900 are counted.
There are potential compatibility issues now that getYear() has been deprecated in favour of getFullYear() - from quirksmode:
To make the matter even more complex, date.getYear...
Can an abstract class have a constructor?
... edited Dec 30 '16 at 1:19
rimsky
1,04322 gold badges1414 silver badges2424 bronze badges
answered Nov 4 '08 at 3:19
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How to remove all whitespace from a string?
... whitespace, use:
gsub("[[:space:]]", "", x) # note the double square brackets
## [1] "xy" "←→" "xy" NA
gsub("\\s", "", x) # same; note the double backslash
library(regex)
gsub(space(), "", x) # same
"[:space:]" is an R-specific regular expression group matching all space cha...
How to find the Windows version from the PowerShell command line
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Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Sep 7 '11 at 7:37
Jeff MercadoJeff M...
Git says “Warning: Permanently added to the list of known hosts”
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Solution: create a ~/.ssh/config file and insert the line:
UserKnownHostsFile ~/.ssh/known_hosts
You will then see the message the next time you access Github, but after that you'll not see it anymore because the host is added to the known_hosts file. This fixes the issue, rather than...