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Scala: Abstract types vs generics
...o by hand. Besides the loss in conciseness, there is also the problem of accidental name
conflicts between abstract type names that emulate type parameters.
Second, generics and abstract types usually serve distinct roles in Scala programs.
Generics are typically used when one needs just type ...
How to mark a build unstable in Jenkins when running shell scripts
... with groovy post-build plugin
if(manager.logContains("Could not login to FTP server")) {
manager.addWarningBadge("FTP Login Failure")
manager.createSummary("warning.gif").appendText("<h1>Failed to login to remote FTP Server!</h1>", false, false, false, "red")
manager.buildU...
Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...cost, but I'm looking for the answer to what do I need to do if I want to accept credit card payments?
9 Answers
...
Can't install Ruby under Lion with RVM – GCC issues
...rt for clang, so if you are installing such a version you should not need GCC. If you’re installing an older version of Ruby, read on.
To compile Ruby with GCC, you need a non-LLVM version of GCC, which is no longer included with XCode 4.2. Install it yourself (or downgrade to XCode 4.1 temporari...
Best way to check if a URL is valid
...at FILTER_VALIDATE_URL will not validate the protocol of a url. So ssh://, ftp:// etc will pass.
– Seph
May 10 '14 at 14:03
3
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Why do we use Base64?
... They data may even be destroyed in transit. For example many FTP programs rewrite line endings from 13,10 to 10 or via versa if the operating system of the server and client don't match and the transfer is flagged as text mode. FTP is just the first example that came to my mind, it is ...
“CASE” statement within “WHERE” clause in SQL Server 2008
...tered LIKE '%TestPerson' THEN 1 ELSE 0 END
END = 1
AND cc.ccnum = CASE LEN('TestFFNum')
WHEN 0 THEN cc.ccnum
ELSE 'TestFFNum'
END
AND CASE LEN('2011-01-09 11:56:29.327')
WHE...
Remove by _id in MongoDB console
...close. This will work:
db.test_users.deleteOne( {"_id": ObjectId("4d512b45cc9374271b02ec4f")});
i.e. you don't need a new for the ObjectId.
Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used instead.
...
How to parse JSON in Python?
...e example that may help you:
json_string = """
{
"pk": 1,
"fa": "cc.ee",
"fb": {
"fc": "",
"fd_id": "12345"
}
}"""
import json
data = json.loads(json_string)
if data["fa"] == "cc.ee":
data["fb"]["new_key"] = "cc.ee was present!"
print json.dumps(data)
The ...
configure: error: C compiler cannot create executables
...
You have an old set of developer tools. gcc is reporting its version as 4.0.1. This may be left over from migrating from an older version of the OS. If you've installed Xcode 4.3.x, you need to launch it, go into its preferences, select the Downloads tab, and click ...