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How do I access the command history from IDLE?
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Go into Preferences > Keys. Find the 'history-previous' selection in the list and edit it to Up Arrow.
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How to get all subsets of a set? (powerset)
... = [a for a in A]
ps = set()
for i in range(2 ** length):
selector = f'{i:0{length}b}'
subset = {l[j] for j, bit in enumerate(selector) if bit == '1'}
ps.add(frozenset(subset))
return ps
If you want exactly the output you posted in your answer use this:
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Inner text shadow with CSS
...to get your effect.
Since SVG is a subset of XML, SVG text would still be select-able and searchable, and the effect can be produced with less code than Canvas.
It would be harder to achieve this with Canvas because it doesn't have a dom with layers like SVG does.
You could produce the SVG eith...
How can I build XML in C#?
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new XElement("Foo",
from s in nameValuePairList
select
new XElement("Bar",
new XAttribute("SomeAttr", "SomeAttrValue"),
new XElement("Name", s.Name),
new XElement("Value", s.Value)
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Equivalent of jQuery .hide() to set visibility: hidden
...e to alter the css in the tag. Hide docs in jquery
An example :
$('#subs_selection_box').fadeOut('slow', function() {
$(this).css({"visibility":"hidden"});
$(this).css({"display":"block"});
});
This will use the normal cool animation to hide the div, but after the animation finish yo...
How do I generate a random int number?
...SEED.This SEED is the beginning point, the trigger which instigates him to select the RANDOM value.
Now if a SEED is easy to guess then those kind of random numbers are termed as PSEUDO and when a seed is difficult to guess those random numbers are termed SECURED random numbers.
For example a perso...
In Bash, how can I check if a string begins with some value?
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You can select just the part of the string you want to check:
if [ "${HOST:0:4}" = user ]
For your follow-up question, you could use an OR:
if [[ "$HOST" == user1 || "$HOST" == node* ]]
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Postgres: clear entire database before re-creating / re-populating from bash script
... q TEXT;
r RECORD;
BEGIN
-- triggers
FOR r IN (SELECT pns.nspname, pc.relname, pt.tgname
Adjusting Eclipse console size
...preference'
step 2: go'run/Debug' form lift side of preference window and select 'console'
step 3: In right side of windows increase the size of 'Console buffer size(characters)'
step 4: click ok to exit
[window -->preference -->run/Debug -->console -->Console buffer size(characters)]
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How do I configure Notepad++ to use spaces instead of tabs?
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Go to the Preferences menu command under menu Settings, and select Language Menu/Tab Settings, depending on your version. Earlier versions use Tab Settings. Later versions use Language. Click the Replace with space check box. Set the size to 4.
See documentation: http://docs.notepa...