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git index.lock File exists when I try to commit, but cannot delete the file
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For Windows:
From a powershell console opened as admin, try
> rm -Force ./.git/index.lock
If that does not work, you must kill all git.exe processes
> taskkill /F /IM git.exe
SUCCESS: The process "git.exe" with PID 20448 has been terminated.
SUCCESS: The process "git.exe" ...
In Typescript, How to check if a string is Numeric
...at (#15100)
return !isArray(val) && (val - parseFloat(val) + 1) >= 0;
}
rxjs/isNumeric.ts
Without rxjs isArray() function and with simplefied typings:
function isNumeric(val: any): boolean {
return !(val instanceof Array) && (val - parseFloat(val) + 1) >= 0;
}
You sho...
Django select only rows with duplicate field values
...Count('id'))
.order_by()
.filter(id__count__gt=1)
This is as close as you can get with Django. The problem is that this will return a ValuesQuerySet with only name and count. However, you can then use this to construct a regular QuerySet by feeding it back into anoth...
What is the maximum length of a table name in Oracle?
What are the maximum length of a table name and column name in Oracle?
12 Answers
12
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How do I rename a project in Xcode 5?
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Besides your answer, I add a new Run Schema (Product > Schema > New Schema) to point to the new target name.
– Muhammad Hewedy
Sep 6 '14 at 10:11
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Rails 4 LIKE query - ActiveRecord adds quotes
...tested, though it could be something like this: scope search_attributes, ->(query, attributes){ arel_attributes = attributes.map{|a| arel_table[a]} arel_queries = arel_attributes.map{|a| a.matches(query)} return where(arel_queries.reduce{|res,q| res.or q}) }
– Pedro Ro...
Benefits of using the conditional ?: (ternary) operator
... ternary operator when I'd have a lot of duplicate code otherwise.
if (a > 0)
answer = compute(a, b, c, d, e);
else
answer = compute(-a, b, c, d, e);
With a ternary operator, this could be accomplished with the following.
answer = compute(a > 0 ? a : -a, b, c, d, e);
...
How do I convert uint to int in C#?
...:
uint n = 3;
int i = checked((int)n); //throws OverflowException if n > Int32.MaxValue
int i = unchecked((int)n); //converts the bits only
//i will be negative if n > Int32.MaxValue
int i = (int)n; //same behavior as unchecked
or
int i = Convert.ToInt32(n); ...
Capitalize only first character of string and leave others alone? (Rails)
...ing.slice(0,1).capitalize + string.slice(1..-1)
Update:
irb(main):001:0> string = "i'm from New York..."
=> "i'm from New York..."
irb(main):002:0> new_string = string.slice(0,1).capitalize + string.slice(1..-1)
=> "I'm from New York..."
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Proper way to rename solution (and directories) in Visual Studio
... use the new name. For this right-click the namespace
and select Refactor > Rename enter a new name. For example:
namespace WindowsFormsApplication1
Change the AssemblyTitle and AssemblyProduct in
Properties/AssemblyInfo.cs.
[assembly: AssemblyTitle("New Name Here")]
[asse...