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How to check file MIME type with javascript before upload?
...d see three remote images of different types displayed. At the top you can select a local image or data file, and the file signature and/or MIME type will be displayed.
Notice that even if an image is renamed, its true MIME type can be determined. See below.
Screenshot
// Return the first...
Remove duplicated rows
...tes, right? Or it removes values randomly?
– News_is_Selection_Bias
Aug 7 '17 at 0:43
@alphabetagamma yes, it keeps th...
Is there a way to delete a line in Visual Studio without cutting it?
I want to delete a line just like hitting Ctrl + X without anything selected, but without saving the line to the copy stack. Is this possible?
...
How do I rename a column in a database table using SQL?
...any other RDBMS), you can do it with regular ALTER TABLE statement:
=> SELECT * FROM Test1;
id | foo | bar
----+-----+-----
2 | 1 | 2
=> ALTER TABLE Test1 RENAME COLUMN foo TO baz;
ALTER TABLE
=> SELECT * FROM Test1;
id | baz | bar
----+-----+-----
2 | 1 | 2
...
Find the PID of a process that uses a port on Windows
...l (Core-compatible) one-liner to ease copypaste scenarios:
netstat -aon | Select-String 8080 | ForEach-Object { $_ -replace '\s+', ',' } | ConvertFrom-Csv -Header @('Empty', 'Protocol', 'AddressLocal', 'AddressForeign', 'State', 'PID') | ForEach-Object { $portProcess = Get-Process | Where-Object Id...
How do I change the color of radio buttons?
...self consists of a round shape and a dot at the center (when the button is selected). What I want to change is the color of both. Can this be done using CSS?
...
The EXECUTE permission was denied on the object 'xxxxxxx', database 'zzzzzzz', schema 'dbo'
...
Now when you go to the properties of the user and go to User Mapping and select the database where you have added new role,now new role will be visible in the Database role membership for: section
For more detail read full article
...
Unexpected value from nativeGetEnabledTags: 0
...
Goto your Logcat
In the Saved Filters part on the left, click on the Edit selected logcat filter (If Saved Filters is not visible then click on Display Saved Filters View in the Logcat)
There, in the by Log Message field, enter ^(?!.*(nativeGetEnabledTags)).*$.
...
How to make rounded percentages add up to 100%
...original,
decimal forceSum, int decimals)
{
var rounded = original.Select(x => Math.Round(x, decimals)).ToList();
Debug.Assert(Math.Round(forceSum, decimals) == forceSum);
var delta = forceSum - rounded.Sum();
if (delta == 0) return rounded;
var deltaUnit = Convert.ToDecim...
How can I reliably determine the type of a variable that is declared using var at design time?
...o resolve the type. For instance:
var items = myList.OfType<Foo>().Select(foo => foo.Bar);
The return type is IEnumerable<Bar>, but resolving this required knowing:
myList is of type that implements IEnumerable.
There is an extension method OfType<T> that applies to IEnume...