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How do I step out of a loop with Ruby Pry?
... is glitched such that I need to close that terminal tab and move to a new one. However !!! does not have this aggravating effect.
– Topher Hunt
Apr 1 '15 at 23:08
...
What's the best way of implementing a thread-safe Dictionary?
...ocs point out that enumerating is inherently not thread safe. That can be one reason for exposing a synchronization object outside your class. Another way to approach that would be to provide some methods for performing an action on all members and lock around the enumerating of the members. The ...
Learn C first before learning Objective-C [closed]
... replaced it with a tiny, ultra compact base64 encoder written entirely as one C function (I copied the function body into the method body, method took NSData as input and returned NSString as output, however inside the function everything was C). The C encoder was so much more compact, it beat the ...
Structure padding and packing
...Every time it needs to get some information from the memory, it will reach one of those blocks and get it.
As seem in the image above, doesn't matter where a Char (1 byte long) is, since it will be inside one of those blocks, requiring the CPU to process only 1 word.
When we deal with data large...
Do rails rake tasks provide access to ActiveRecord models?
...erator to stub them out for you.
For example:
rails g task my_tasks task_one task_two task_three
You'll get a stub created in lib/tasks called my_tasks.rake (obviously use your own namespace.) Which will look like this:
namespace :my_tasks do
desc "TODO"
task :task_one => :environment ...
How do I properly force a Git push?
I've set up a remote non-bare "main" repo and cloned it to my computer. I made some local changes, updated my local repository, and pushed the changes back to my remote repo. Things were fine up to that point.
...
How can I be notified when an element is added to the page?
...deprecated mutation events. See this answer for a better solution than the one presented here. Seriously. Don't poll the DOM every 100 milliseconds; it will waste CPU power and your users will hate you.
Since mutation events were deprecated in 2012, and you have no control over the inserted element...
How to put the legend out of the plot
...small, x-small, small, medium, large, x-large, xx-large, larger, smaller, None
Real Python: Python Plotting With Matplotlib (Guide)
import matplotlib.pyplot as plt
from matplotlib.font_manager import FontProperties
fontP = FontProperties()
fontP.set_size('xx-small')
p1, = plt.plot([1, 2, 3], ...
MySQL selecting yesterday's date
... next date, week, month & year calculation. It might be helpful for anyone.
Current Date:
select curdate();
Yesterday:
select subdate(curdate(), 1)
Tomorrow:
select adddate(curdate(), 1)
Last 1 week:
select between subdate(curdate(), 7) and subdate(curdate(), 1)
Next 1 week:
be...
The point of test %eax %eax [duplicate]
...set. JE is an alias of JZ [Jump if Zero] so the disassembler cannot select one based on the opcode. JE is named such because the zero flag is set if the arguments to CMP are equal.
So,
TEST %eax, %eax
JE 400e77 <phase_1+0x23>
jumps if the %eax is zero.
...