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Why does the Scala compiler disallow overloaded methods with default arguments?
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def foo(a: Either[Int, String], b: Int = 42) = a match {
case Left(i) => i + b
case Right(s) => s + b
}
If you have two very long arg lists which differ in only one arg, it might be worth the trouble...
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How to set a bitmap from resource
...itmapFactory.decodeResource(Resources.getSystem(), R.drawable.your_image) <—Kotlin
– Bikeboy
Dec 21 '18 at 15:06
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Add leading zeroes/0's to existing Excel values to certain length
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Highlight the column/array you want to style.
Click ctrl + 1 or Format -> Format Cells.
In the Number tab, choose Custom.
Set the Custom formatting to 000#. (zero zero zero #)
Note that this does not actually change the value of the cell. It only displays the leading zeroes in the worksheet....
Create a new database with MySQL Workbench
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How to create database in MySQL Workbench 6.3
In tab home (1) -> Right click on Local instance banner (2)
-> Open Connection (3)
Right click on the empty space in schema window (1) -> Create schema (2)
Type name of database (1) -> Apply (2)
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Is there a standard keyboard shortcut to build the current project in Visual Studio?
...u that are navigated with the Alt key:
At least for VS2013:
Alt + B, B -> Build Solution
Alt + B, R -> Rebuild Solution
Alt + B, U -> Build current project
Alt + B, E -> Rebuild current project
For some reason after installing Resharper I couldn't get a global shortcut to work (tried...
back button callback in navigationController in iOS
...wController = false
override func popViewController(animated: Bool) -> UIViewController? {
didCallPopViewController = true
return super.popViewController(animated: animated)
}
func navigationBar(_ navigationBar: UINavigationBar, shouldPop item: UINavigationItem) ->...
How can I return two values from a function in Python?
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def test():
....
return r1, r2, r3, ....
>> ret_val = test()
>> print ret_val
(r1, r2, r3, ....)
now you can do everything you like with your tuple.
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How do I represent a time only value in .NET?
... of day.
One thing to consider: the time of day is not necessarily the length of time since midnight on the same day...
(As another aside, if you're also wanting to represent a closing time of a shop, you may find that you want to represent 24:00, i.e. the time at the end of the day. Most date/tim...
How to read a .xlsx file using the pandas Library in iPython?
...ltiple sheets.
Specify None to get all sheets.
str|int -> DataFrame is returned.
list|None -> Dict of DataFrames is returned, with keys representing
sheets.
Available Cases
* Defaults to 0 -> 1st sheet as a DataFrame
* 1 -> 2nd ...
How to use greater than operator with date?
...ing, use backtick instead
SELECT * FROM `la_schedule` WHERE `start_date` > '2012-11-18';
SQLFiddle Demo
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