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How do I remove a file from the FileList
I'm building a drag-and-drop-to-upload web application using HTML5, and I'm dropping the files onto a div and of course fetching the dataTransfer object, which gives me the FileList .
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Looping through the content of a file in Bash
... effects of trimming leading whitespace, interpreting backslash sequences, and skipping the last line if it's missing a terminating linefeed. If these are concerns, you can do:
while IFS="" read -r p || [ -n "$p" ]
do
printf '%s\n' "$p"
done < peptides.txt
Exceptionally, if the loop body m...
How can I convert string to datetime with format specification in JavaScript?
...ave to parse the string yourself (should be easy with regular expressions) and create a new Date object with explicit values for year, month, date, hour, minute and second.
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Simple example of threading in C++
...sk1 says: " << msg;
}
int main()
{
// Constructs the new thread and runs it. Does not block execution.
thread t1(task1, "Hello");
// Do other things...
// Makes the main thread wait for the new thread to finish execution, therefore blocks its own execution.
t1.join();
}
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Gradle - getting the latest release version of a dependency
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Gradle currently does not support Maven's RELEASE (which is rarely used and deprecated) but it does support Ivy's latest.release. However, the general recommendation is to build against exact versions. Otherwise, the build can become a lottery.
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Windows can't find the file on subprocess.call()
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When the command is a shell built-in, add a 'shell=True' to the call.
E.g. for dir you would type:
import subprocess
subprocess.call('dir', shell=True)
To quote from the documentation:
The only time you need to specify shell=True ...
Check substring exists in a string in C
...
... and false is 0
– Jack
Feb 13 '15 at 2:58
9
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Solutions for INSERT OR UPDATE on SQL Server
...ford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @key)
begin
update table set ...
where key = @key
end
else
begin
insert into tab...
How to move out of auto-completed brackets in IntelliJ IDEA (without using the arrow keys)?
I recently switched from Eclipse to IntelliJ IDEA, and found myself wondering how to move the cursor out of a pair of auto-completed brackets.
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There is no ListBox.SelectionMode=“None”, is there another way to disable selection in a listbox?
...ox, you could use ItemsControl instead. It places items in the ItemsPanel and doesn't have the concept of selection.
<ItemsControl ItemsSource="{Binding MyItems}" />
By default, ItemsControl doesn't support virtualization of its child elements. If you have a lot of items, virtualization can ...