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How can I make setInterval also work when a tab is inactive in Chrome?
...nimationFrame:
var target = document.querySelector('div#target')
var startedAt, duration = 3000
var domain = [-100, window.innerWidth]
var range = domain[1] - domain[0]
function start() {
startedAt = Date.now()
updateTarget(0)
requestAnimationFrame(update)
}
function update()...
Python function overloading
...;>> @dispatch(Sprite, Point, Vector, int)
... def add_bullet(sprite, start, direction, speed):
... print("Called Version 1")
...
>>> @dispatch(Sprite, Point, Point, int, float)
... def add_bullet(sprite, start, headto, speed, acceleration):
... print("Called version 2")
...
&g...
Explicitly select items from a list or tuple
...e 1st was changed to be the same as the 4th.
Another option would be to start out with a numpy.array which allows indexing via a list or a numpy.array:
>>> import numpy
>>> myBigList = numpy.array(range(1000))
>>> myBigList[(87, 342, 217, 998, 500)]
Traceback (most rec...
Print a file, skipping the first X lines, in Bash [duplicate]
... excluding first N lines. >
That is, if you want to skip N lines, you start printing line N+1. Example:
$ tail -n +11 /tmp/myfile
< /tmp/myfile, starting at line 11, or skipping the first 10 lines. >
If you want to just see the last so many lines, omit the "+":
$ tail -n <N> <...
Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...eding. Here's a brief implementation.
def spoonfeed(qs, func, chunk=1000, start=0):
''' Chunk up a large queryset and run func on each item.
Works with automatic primary key fields.
chunk -- how many objects to take on at once
start -- PK to start from
>>> spoonfeed(...
Maximum number of threads in a .NET app?
...n C#, if we want to be completely precise, we need to distinguish between "started" and "non started" threads. Only started threads actually reserve stack space (as we could expect). Non started threads only allocate the information required by a thread object (you can use reflector if interested in...
How to install an apk on the emulator in Android Studio?
... (For full beginners)
1- Run the emulator, and wait until it's completely started.
2- Go to your sdk installation folder then go to platform-tools (you should see an executable called adb.exe)
3- create a new file and call it run.bat, edit the file with notepad and write CMD in it and save it.
...
If threads share the same PID, how can they be identified?
...hey also have a TGID (thread group ID) which is the PID of the thread that started the whole process.
Simplistically, when a new process is created, it appears as a thread where both the PID and TGID are the same (new) number.
When a thread starts another thread, that started thread gets its own P...
How can I create tests in Android Studio?
...
This answer is for people who are just getting started with Android testing. I will provide two simple examples to help you see how testing works. If you follow along for the next 10 minutes, you will be all set up to start adding your tests to your own app. I think you'l...
Count the number occurrences of a character in a string
...
str.count(sub[, start[, end]])
Return the number of non-overlapping occurrences of substring sub in the range [start, end]. Optional arguments start and end are interpreted as in slice notation.
>>> sentence = 'Mary had a little la...