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Java heap terminology: young, old and permanent generations?
...nt generation.
I like the descriptions given for each space in Oracle's guide on JConsole:
For the HotSpot Java VM, the memory
pools for serial garbage collection
are the following.
Eden Space (heap): The pool from which memory is initially allocated
for most objects.
Survivor S...
AngularJS : The correct way of binding to a service properties
...
Consider some pros and cons of the second approach:
0 {{lastUpdated}} instead of {{timerData.lastUpdated}}, which could just as easily be {{timer.lastUpdated}}, which I might argue is more readable (but let's not argue... I'm ...
Javascript object Vs JSON
...
Is the key/property name valid both with/without quotes ?
The only time you need to enclose a key in quotes when using Object Literal notation is where the key contains a special character (if, :, - etc). It is worth noting that a key in JSON must be ...
How to change past commit to include a missed file?
...te repo? Wouldn't it allow me to do git push -f if I am sure the upstream didn't change?
– kolrie
Jan 16 '13 at 22:48
1
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Running bash script from within python
...
The os.system documentation specifically recommends avoiding it in favor of subprocess (these days, subprocess.run()). If you can't get subprocess to work, chances are you'll have trouble with os.system() too.
– tripleee
Jun 2 at 2:03
...
In-place edits with sed on OS X
...
You can use the -i flag correctly by providing it with a suffix to add to the backed-up file. Extending your example:
sed -i.bu 's/oldword/newword/' file1.txt
Will give you two files: one with the name file1.txt that contains the substitution, and one with the n...
Releasing memory in Python
...ory_info.
import os
import gc
import psutil
proc = psutil.Process(os.getpid())
gc.collect()
mem0 = proc.get_memory_info().rss
# create approx. 10**7 int objects and pointers
foo = ['abc' for x in range(10**7)]
mem1 = proc.get_memory_info().rss
# unreference, including x == 9999999
del foo, x
mem...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
...comparable efforts at optimizations; thus the speed differences can be considered as really intrinsic to the functions.
As a point of comparison, consider that a recent hard disk will run at about 100 MB/s, and anything over USB will top below 60 MB/s. Even though SHA-256 appears "slow" here, it is...
How to pull request a wiki page on GitHub?
...
Put your documentation into the git repository together with the code inside a documentation folder.
Extend your travis-ci build with some magic that stages all changes from that documentation folder with transformations applied to the wiki git. See last example link below.
Consider the wiki as r...
Why would one use the Publish/Subscribe pattern (in JS/jQuery)?
...cribe interface which is not a big deal – just two methods. So if you decide to reuse a module in a different project you can just copy and paste it and it’ll probably work or at least you won’t need much effort to make it work.
When talking about loose coupling we should mention the separati...