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How to set environment variables in Python?
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Environment variables must be strings, so use
os.environ["DEBUSSY"] = "1"
to set the variable DEBUSSY to the string 1.
To access this variable later, simply use:
print(os.environ["DEBUSSY"])
Child processes automatically inherit the environment var...
How to format numbers? [duplicate]
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If you want to use built-in code, you can use toLocaleString() with minimumFractionDigits. Browser compatibility for the extended options on toLocaleString() was limited when I first wrote this answer, but the current status looks good.
var n = 100000;
var value = n.toLocale...
Get class list for element with jQuery
...lt;lots of spaces here> bar", you would end up with an array with empty string elements.
– Jacob van Lingen
Sep 22 '15 at 14:03
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include antiforgerytoken in ajax post ASP.NET MVC
... [HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Index(string someValue)
{
return Json(new { someValue = someValue });
}
}
View:
@using (Html.BeginForm(null, null, FormMethod.Post, new { id = "__AjaxAntiForgeryForm" }))
{
@Html.AntiForgeryToken()
}
<div...
Get the size of the screen, current web page and browser window
...() seems to work for all elements, and returns a number (46) rather than a string like css('height') ("46px").
– Chris
Feb 6 '13 at 16:02
7
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th
... to get default value if key is not there in a dictionary.
Dictionary<string, string> colorData = new Dictionary<string, string>();
string color = colorData.GetValueOrDefault("colorId", string.Empty);
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Is the C# static constructor thread safe?
... for each T.
}
}
EDIT:
Here is the demonstration:
static void Main(string[] args)
{
var obj = new Foo<object>();
var obj2 = new Foo<string>();
}
public class Foo<T>
{
static Foo()
{
System.Diagnostics.Debug.WriteLine(String.Format("Hit {0}", typeof...
How to check if a map contains a key in Go?
... the value of "foo" from the map or a "zero value" (in this case the empty string) and ok will receive a bool that will be set to true if "foo" was actually present in the map
evaluates ok, which will be true if "foo" was in the map
If "foo" is indeed present in the map, the body of the if stateme...
Overriding id on create in ActiveRecord
... @jkndrkn - I don't know what you mean. I've got ActiveRecord::VERSION::STRING == "3.2.11" here (with the sqlite3 adapter) and the above works for me.
– Felix Rabe
Feb 17 '13 at 18:43
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Why can't Python find shared objects that are in directories in sys.path?
...D_LIBRARY_PATH
Use the first form if it's empty (equivalent to the empty string, or not present at all), and the second form if it isn't. Note the use of export.
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