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Git submodule head 'reference is not a tree' error
I have a project with a submodule that is pointing to an invalid commit: the submodule commit remained local and when I try to fetch it from another repo I get:
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How to pattern match using regular expression in Scala?
I would like to be able to find a match between the first letter of a word, and one of the letters in a group such as "ABC". In pseudocode, this might look something like:
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How to handle command-line arguments in PowerShell
...owerShell scripts have parameters starting with -, like script.ps1 -server http://devserver
Then you handle them in param section in the beginning of the file.
You can also assign default values to your params, read them from console if not available or stop script execution:
param (
[string...
Working with $scope.$emit and $scope.$on
How can I send my $scope object from one controller to another using .$emit and .$on methods?
12 Answers
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MFC 的SetWindowPos 用法 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC 的SetWindowPos 用法许多软件，特别是占桌面面积不是很大的软件，通常都提供了一个常居顶端的功能（可能有的软件不是这么叫法，但作用是相同的），它的作用是保...许多软件，特别是占桌面面积不是很大的软件，通常都提...
How to pass a user defined argument in scrapy spider
... def __init__(self, category='', **kwargs):
self.start_urls = [f'http://www.example.com/{category}'] # py36
super().__init__(**kwargs) # python3
def parse(self, response)
self.log(self.domain) # system
Taken from the Scrapy doc: http://doc.scrapy.org/en/latest/top...
What's the difference between an object initializer and a constructor?
What are the differences between the two and when would you use an "object initializer" over a "constructor" and vice-versa? I'm working with C#, if that matters. Also, is the object initializer method specific to C# or .NET?
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AngularJS HTTP post to PHP and undefined
...ta: $.param({ "foo": $scope.fooValue })
Then, add the following to your $http
headers: {
'Content-Type' : 'application/x-www-form-urlencoded; charset=UTF-8'
},
If all of your requests are going to PHP the parameters can be set globaly in the configuration as follows:
myApp.config(funct...
How do I spool to a CSV formatted file using SQLPLUS?
I want to extract some queries to a CSV output format. Unfortunately, I can't use any fancy SQL client or any language to do it. I must use SQLPLUS.
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How to write to file in Ruby?
...l for people who just want to cut-and-paste. It's not surprising that this combination ends up well ranked on Google.
– jdl
Dec 31 '13 at 16:09
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