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Object.getOwnPropertyNames vs Object.keys
... object. Here is something that got me.
const cat1 = {
eat() {},
sleep() {},
talk() {}
};
// here the methods will be part of the Cat Prototype
class Cat {
eat() {}
sleep() {}
talk() {}
}
const cat2 = new Cat()
Object.keys(cat1) // ["eat", "sleep", "talk"]
Object.keys(Ob...
StringUtils 字符串工具扩展：强大的文本处理工具集 · App Inventor 2 中文网
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How to measure elapsed time in Python?
...() - t
The new function process_time will not include time elapsed during sleep.
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Get exit code of a background process
...cript:
# simulate a long process that will have an identifiable exit code
(sleep 15 ; /bin/false) &
my_pid=$!
while ps | grep " $my_pid " # might also need | grep -v grep here
do
echo $my_pid is still in the ps output. Must still be running.
sleep 3
done
echo Oh, it looks like ...
Wait 5 seconds before executing next line
...s (specifically testing) this is woefully inadequate. What if you need to sleep for 500ms before returning from the function, for instance to simulate a slow async http request?
– A.Grandt
Sep 22 '16 at 9:17
...
Python function attributes - uses and abuses [closed]
...eturn _sw
# test code
sw=stopwatch()
sw2=stopwatch()
import os
os.system("sleep 1")
print sw() # defaults to "SW_DELTA"
sw( SW_MARK )
os.system("sleep 2")
print sw()
print sw2()
1.00934004784
2.00644397736
3.01593494415
...
Google Espresso or Robotium [closed]
...mly because of timing issues. Most test authors ignore this fact, some add sleeps/retry mechanisms and even fewer implement more sophisticated thread safety code. None of these are ideal. Espresso takes care of thread safety by seamlessly synchronizing test actions and assertions with the UI of the ...
How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af
...xperimentation.
The root of the problem is at the point a device "Goes to Sleep" for a while - this means that the OS has decided to lower the battery consumption by stopping most User Land processes for a while, and turning Screen off, reducing CPU cycles, etc. The way this is done - is on a Linux...
How to do ssh with a timeout in a script?
...te host is taking an infinite time to run": "ssh -o ConnectTimeout=5 host 'sleep 10'" waits for 10 seconds, not 5.
– Ferry Boender
Oct 11 '16 at 18:37
...
How to debug Lock wait timeout exceeded on MySQL?
...ws open inside InnoDB
Main thread process no. 29956, id 1185823040, state: sleeping
Number of rows inserted 6453767, updated 4602534, deleted 3638793, read 388349505551
0.25 inserts/s, 1.25 updates/s, 0.00 deletes/s, 2.75 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============...