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What is the difference between named and positional parameters in Dart?
...Required parameter
Optional parameter (positional, named & default)
>> Required Parameter
Required parameter is a well know old style parameter which we all familiar with it
example:
findVolume(int length, int breath, int height) {
print('length = $length, breath = $breath, height = ...
Maven: Failed to read artifact descriptor
... @MrPhi: If you have the m2e plugin, then you can use Maven -> "Update Project...". The next dialog will have an option to force updates of snapshots and releases.
– Aaron Digulla
Mar 13 '14 at 14:04
...
Library? Static? Dynamic? Or Framework? Project inside another project
...a new project template. In Xcode 6.1, this can be found at:
New Project -> iOS -> Framework & Library -> Cocoa Touch Framework
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How can I concatenate NSAttributedStrings?
...ted strings
func + (left: NSAttributedString, right: NSAttributedString) -> NSAttributedString
{
let result = NSMutableAttributedString()
result.append(left)
result.append(right)
return result
}
Now you can concatenate them just by adding them:
let helloworld = NSAttributedStri...
How to run a hello.js file in Node.js on windows?
....log('Server running at http://127.0.0.1:1337/');
Save the file
Start -> Run... -> cmd
c:
C:>node hello.js
Server running at http://127.0.0.1:1337/
That's it. This was done on Windows XP.
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“unadd” a file to svn before commit
...
Full process (Unix svn package):
Check files are not in SVN:
> svn st -u folder
? folder
Add all (including ignored files):
> svn add folder
A folder
A folder/file1.txt
A folder/folder2
A folder/folder2/file2.txt
A folder/folderToIgnore
A folder/folderToIgnore/file...
EF5: Cannot attach the file ‘{0}' as database '{1}'
...r me after deleting the files. You can also run the commands from Tools --> Library Package Manager --> Package Manager Console.
– Bart Verkoeijen
Nov 17 '13 at 10:00
11
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LogCat message: The Google Play services resources were not found. Check your project configuration
...yway, the problem turned out to be that on my S3 under Location Services -> Google Location Services. It was not checked. The other two location options were checked (VZW Location Services and Standalone GPS Services), but the last one, Google Location Services was not. After turning that on, the...
Query-string encoding of a Javascript Object
...ap() instead of .reduce() would be even simpler: Object.keys(obj).map(k => k + '=' + encodeURIComponent(obj[k])).join('&')
– Jannes
Apr 21 '15 at 13:34
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Android Studio suddenly cannot resolve symbols
...ened my project, i was full of red errors. i solved it by android studio-->file-->invalidate chaches/restart. when my project restarted it worked..no red errors
– SoftEye
Jan 28 '15 at 6:52
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