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How do I use define_method to create class methods?
...ut relying on define_method:
A.class_eval do
def self.class_method_name(param)
puts param
end
end
A.class_method_name("hello") # outputs "hello" and returns nil
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What is the difference between null and undefined in JavaScript?
...t while this comment was true in '11, with the advent of optional function params, emergence of type-checking systems like Flow, and pervasiveness of React (all of which treat undefined and null very differently), the old wisdom of generally using null rather than undefined no longer holds so strict...
How to handle WndProc messages in WPF?
...ok(WndProc));
private static IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
// do stuff
return IntPtr.Zero;
}
Now, I'm not quite sure why you'd want to handle Windows Messaging messages in a WPF application (unless it's the most obvious form of in...
Deserialize JSON into C# dynamic object?
...is helps future visitors. I had the same problem, just with the field-name params (which is a keyword in C#). In addition to TryGetMember you can override TryGetIndex, which gives you exactly the same behavior as in JS. Then you can do obj["params"] or obj["background-color"] for awkward field names...
What is a unix command for deleting the first N characters of a line?
...
Here is simple function, tested in bash. 1st param of function is string, 2nd param is number of characters to be stripped
function stringStripNCharsFromStart {
echo ${1:$2:${#1}}
}
Usage:
...
Django set default form values
...sed to the actual form? In the actual form model, do we have to write as a parameter/argument?
– mgPePe
May 4 '11 at 12:03
2
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How do I correctly clean up a Python object?
... How to use that nice and clean construct if you want to pass parameters? I would like to be able to do with Resource(param1, param2) as r: # ...
– snooze92
Jan 20 '14 at 9:52
...
Reusing a PreparedStatement multiple times
...statements to that thread. So other concurrent threads initially pass only params needed to build all prepared statement, but then they can modify params concurrently
– Steel Plume
Mar 18 '10 at 3:19
...
Using Excel OleDb to get sheet names IN SHEET ORDER
...xcel sheet names from
/// an excel workbook.
/// </summary>
/// <param name="excelFile">The excel file.</param>
/// <returns>String[]</returns>
private String[] GetExcelSheetNames(string excelFile)
{
OleDbConnection objConn = null;
System.Data.DataTable dt = nu...
PHP + curl, HTTP POST sample code?
...
no need to use http_build_query() to handle parameters; just pass the array to CURLOPT_POSTFIELDS is enough.
– Raptor
Apr 5 '16 at 3:13
9
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