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How to write an async method with out parameter?
...ons. Your code can be the only documentation a developer will ever have.
Best of luck.
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targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...zeForItemAt:), use a custom variable with the itemSize instead.
This works best when you set self.collectionView.decelerationRate = UIScrollView.DecelerationRate.fast.
Here's a horizontal version (haven't tested it thoroughly so please forgive any mistakes):
override func targetContentOffset(forP...
Delete keychain items when an app is uninstalled
...d
if !userDefaults.bool(forKey: "hasRunBefore") {
// Remove Keychain items here
// Update the flag indicator
userDefaults.set(true, forKey: "hasRunBefore")
}
*note that synchronize() function is deprecated
...
What does enumerate() mean?
...rable (like a list), as well as an index number, combined in a tuple:
for item in enumerate(["a", "b", "c"]):
print item
prints
(0, "a")
(1, "b")
(2, "c")
It's helpful if you want to loop over a sequence (or other iterable thing), and also want to have an index counter available. If you wa...
Download multiple files with a single action
...G file. If the files are displayed in the browser, the SVG seems to be the best way.
– VectorVortec
Dec 31 '15 at 9:06
4
...
Getting key with maximum value in dictionary?
...
You can use operator.itemgetter for that:
import operator
stats = {'a':1000, 'b':3000, 'c': 100}
max(stats.iteritems(), key=operator.itemgetter(1))[0]
And instead of building a new list in memory use stats.iteritems(). The key parameter to the...
Removing path and extension from filename in powershell
...he full path, directory, file name or file extension.
$PSCommandPath
(Get-Item $PSCommandPath ).Extension
(Get-Item $PSCommandPath ).Basename
(Get-Item $PSCommandPath ).Name
(Get-Item $PSCommandPath ).DirectoryName
(Get-Item $PSCommandPath ).FullName
$ConfigINI = (Get-Item $PSCommandPath ).Director...
Remove property for all objects in array
...ing to the initial problem it may be const newArray = array.map(({ bad, ...item }) => item);
– dhilt
Sep 27 '18 at 12:21
1
...
Removing double quotes from variables in batch file creates problems with CMD environment
... removing both quotes from the string).
Input:
set widget="a very useful item"
set widget
set widget=%widget:"=%
set widget
Output:
widget="a very useful item"
widget=a very useful item
Note: To replace Double Quotes " with Single Quotes ' do the following:
set widget=%widget:"='%
Note: To...
How can I get this ASP.NET MVC SelectList to work?
... customers = repository.GetAll<Customer>();
IEnumerable<SelectListItem> selectList =
from c in customers
select new SelectListItem
{
Selected = (c.CustomerID == invoice.CustomerID),
Text = c.Name,
Value = c.CustomerID.ToString()
};
At second gla...