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How do I subtract minutes from a date in javascript?
...ueOf() a Date is the number of milliseconds since Jan 1, 1970
There are 60,000 milliseconds in a minute :-]
...it isn't so hard.
In the code below, a new Date is created by subtracting the appropriate number of milliseconds from myEndDateTime:
var MS_PER_MINUTE = 60000;
var myStartDate = new Dat...
Outlook autocleaning my line breaks and screwing up my email format
...
Thanks - and now please guide our 100.000+ newsletter receivers to do this
– Muleskinner
Mar 3 '17 at 15:39
add a comment
...
Styling twitter bootstrap buttons
...or, $btn-primary-bg, $btn-primary-border);
$color: #fff;
$background: #000;
$border: #333;
@include button-variant($color, $background, $border);
// override the default darkening with lightening
&:hover,
&:focus,
&.focus,
&:active,
&.active,
.open > &...
How do I open an old MVC project in Visual Studio 2012 or Visual Studio 2013?
...ds>
{F85E285D-A4E0-4152-9332-AB1D724D3325};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}
</ProjectTypeGuids>
Remove the appropriate Project Guid from the list:
ASP.NET MVC 1: {603c0e0b-db56-11dc-be95-000d561079b0}
ASP.NET MVC 2: {F85E285D-A4E0-4152-93...
Sql query to insert datetime in SQL Server
...eed work in all SQL languages in sys.syslanguages:
declare @sql nvarchar(4000)
declare @LangID smallint
declare @Alias sysname
declare @MaxLangID smallint
select @MaxLangID = max(langid) from sys.syslanguages
set @LangID = 0
while @LangID <= @MaxLangID
begin
select @Alias = alias
fr...
Modifying a subset of rows in a pandas dataframe
..., use NumPy's where function.
Setup
Create a two-column DataFrame with 100,000 rows with some zeros.
df = pd.DataFrame(np.random.randint(0,3, (100000,2)), columns=list('ab'))
Fast solution with numpy.where
df['b'] = np.where(df.a.values == 0, np.nan, df.b.values)
Timings
%timeit df['b'] = np.where...
Edit line thickness of CSS 'underline' attribute
...on:absolute;
left:0;
bottom:0;
right:0;
margin:auto;
background:#000;
height:1px;
}
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How to get last key in an array?
...y(array_slice($array, -1, 1, true));
As the tests say, on an array with 500000 elements, it is almost 7x faster!
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Change Name of Import in Java, or import two classes with the same name
...hese situations would occur less frequently in java (where you can have 10.000+ classes) than in other languages (where you usually have less classes) which do support this "sugar" syntax.
– Alain Pannetier
May 21 '17 at 18:29
...
How to select date from datetime column?
... indexed column is high. These are some test results on a table with 1,176,000 rows:
using datetime LIKE '2009-10-20%' => 2931ms
using datetime >= '2009-10-20 00:00:00' AND datetime <= '2009-10-20 23:59:59' => 168ms
When doing a second call over the same query the difference is even ...