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How do you 'redo' changes after 'undo' with Emacs?
...n:
You can think of undo as operating on a stack of operations. If you perform some command (even a navigation command such as C-f) after a sequence of undo operations, all the undos are pushed on to the operation stack. So the next undo undoes the last command. Suppose you do have an operation s...
do N times (declarative syntax)
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This answer is based on Array.forEach, without any library, just native vanilla.
To basically call something() 3 times, use:
[1,2,3].forEach(function(i) {
something();
});
considering the following function:
function something(){ console.log('somet...
How to check if an object is a list or tuple (but not string)?
...a function passes a str object by mistake, and the target function does for x in lst assuming that lst is actually a list or tuple .
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What is the fastest way to send 100,000 HTTP requests in Python?
...come across a similar problem? I guess generally I need to know how to perform thousands of tasks in Python as fast as possible - I suppose that means 'concurrently'.
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How can I access “static” class variables within class methods in Python?
...nstantin -- I didn't realize that, it's an interesting distinction. Thanks for the correction :-)
– bedwyr
Apr 3 '09 at 1:14
2
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How to set ViewBag properties for all Views without using a base class for Controllers?
...our approach I've added another simplification, this time without the need for a module.
– Nicholas Blumhardt
Apr 19 '11 at 21:26
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How to list imported modules?
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import sys
sys.modules.keys()
An approximation of getting all imports for the current module only would be to inspect globals() for modules:
import types
def imports():
for name, val in globals().items():
if isinstance(val, types.ModuleType):
yield val.__name__
This w...
Extracting bits with a single multiplication
... simple example of getting a single byte manipulated. Using unsigned 8 bit for simplicity. Imagine your number is xxaxxbxx and you want ab000000.
The solution consisted of two steps: a bit masking, followed by multiplication. The bit mask is a simple AND operation that turns uninteresting bits to z...
Android Studio says “cannot resolve symbol” but project compiles
..."Invalidate and Restart" option to fix this.
EDIT 2: This fix should work for all similar incidents and is not a twitter4j specific resolution.
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How to search a specific value in all tables (PostgreSQL)?
Is it possible to search every column of every table for a particular value in PostgreSQL?
8 Answers
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