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iphone Core Data Unresolved error while saving
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It means there's a mandatory property has been assigned nil. Either in your *.xcodatamodel check the "optional" box or when you are saving to the managedObjectContext make sure that your properties are filled in.
If you're getting further erro...
Check if any ancestor has a class using jQuery
Is there any way in jQuery to check if any parent, grand-parent, great-grand-parent has a class.
3 Answers
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When should you branch?
...ing out the following article, which explains the principles of branching, and when to use them:
Ned Batchelder - Subversion branching quick start
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Make outer div be automatically the same height as its floating content
...pported in older IEs).
The problem is that containers won't naturally expand to include floated children. Be warned with using the first example, if you have any children elements outside the parent element, they will be hidden. You can also use 'auto' as the property value, but this will invoke s...
In jQuery how can I set “top,left” properties of an element with position values relative to the par
...ion relative to the parent you need to set the position:relative of parent and position:absolute of the element
$("#mydiv").parent().css({position: 'relative'});
$("#mydiv").css({top: 200, left: 200, position:'absolute'});
This works because position: absolute; positions relatively to the closes...
Getting values from query string in an url using AngularJS $location
...ll not work in IE <10)
Edit:
As pointed out in the comments by @Naresh and @DavidTchepak, the $locationProvider also needs to be configured properly: https://code.angularjs.org/1.2.23/docs/guide/$location#-location-service-configuration
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How to `go test` all tests in my project?
The go test command covers *_test.go files in only one dir.
3 Answers
3
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NSString property: copy or retain?
... behind its back, you should mark the properties representing them copy. (And if you write the setter yourself instead of using @synthesize you should remember to actually use copy instead of retain in it.)
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What does “&” at the end of a linux command mean?
I am a system administrator and I have been asked to run a linux script to clean the system.
4 Answers
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Reading an Excel file in python using pandas
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Close: first you call ExcelFile, but then you call the .parse method and pass it the sheet name.
>>> xl = pd.ExcelFile("dummydata.xlsx")
>>> xl.sheet_names
[u'Sheet1', u'Sheet2', u'Sheet3']
>>> df = xl.parse("Sheet1")
>>> df.head()
Tid du...