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How to programmatically disable page scrolling with jQuery
...verflow'));
html.css('overflow', 'hidden');
window.scrollTo(scrollPosition[0], scrollPosition[1]);
// un-lock scroll position
var html = jQuery('html');
var scrollPosition = html.data('scroll-position');
html.css('overflow', html.data('previous-overflow'));
window.scrollTo(scrollPosition[0], scrol...
Why does 'continue' behave like 'break' in a Foreach-Object?
...on a particular iteration, thus, it simulates the continue in a loop.
1..100 | ForEach-Object {
if ($_ % 7 -ne 0 ) { return }
Write-Host "$($_) is a multiple of 7"
}
There is a gotcha to be kept in mind when refactoring. Sometimes one wants to convert a foreach statement block into a pipe...
How to select first parent DIV using jQuery?
... |
edited Jun 8 '17 at 17:01
Nigel B. Peck
5,67222 gold badges1616 silver badges3737 bronze badges
answe...
What is the shortest way to pretty print a org.w3c.dom.Document to stdout?
...
Marco Lackovic
4,00744 gold badges3434 silver badges4545 bronze badges
answered Feb 24 '10 at 11:01
BozhoBozho
...
Getting one value from a tuple
...
207
You can write
i = 5 + tup()[0]
Tuples can be indexed just like lists.
The main difference b...
App Inventor 2 传感器应用教程 - 位置/方向/加速度传感器 · App Inventor 2 中文网
... 注意事项
首次定位需要时间（GPS冷启动约30-60秒）
室内GPS信号弱，建议在室外测试
Android 6.0+需要动态申请位置权限
DistanceInterval 设大一点可以省电（如10米）
OrientationSensor（方向传感器）
...
How to npm install to a specified directory?
...
340
You can use the --prefix option:
mkdir -p ./install/here/node_modules
npm install --prefix ./in...
Wait for a process to finish
...
+50
To wait for any process to finish
Linux:
tail --pid=$pid -f /dev/null
Darwin (requires that $pid has open files):
lsof -p $pid +r...
Python speed testing - Time Difference - milliseconds
...e.datetime.now()
>>> c = b - a
>>> c
datetime.timedelta(0, 4, 316543)
>>> c.days
0
>>> c.seconds
4
>>> c.microseconds
316543
Be aware that c.microseconds only returns the microseconds portion of the timedelta! For timing purposes always use c.total_sec...
How can I test that a value is “greater than or equal to” in Jasmine?
I want to confirm that a value is a decimal (or 0), so the number should be greater than or equal to zero and less than 1.
...