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Defining a function with multiple implicit arguments in Scala
...myFun(arg: String)(implicit p: (String, Int) ): Unit = {
println(arg + p._1 + p._2)
/*otherwise your actual code*/
}
// These implicit conversion are able to produce the basic implicit (String,Int) Tuples
implicit def idis(implicit is: String, ii: Int): (String,Int)= (is,ii)
implicit def idi(s:...
Targeting position:sticky elements that are currently in a 'stuck' state
...an intersection observer to notify when elements with the class
* `.sticky_sentinel--top` become visible/invisible at the top of the container.
* @param {!Element} container
*/
function observeHeaders(container) {
const observer = new IntersectionObserver((records, observer) => {
for (co...
How do I get the row count of a pandas DataFrame?
...g",
setup=lambda n: pd.DataFrame(np.arange(n * 3).reshape(n, 3)),
n_range=[2**k for k in range(25)],
kernels=[
lambda data: data.shape[0],
lambda data: data[0].count(),
lambda data: len(data.index),
],
labels=["data.shape[0]", "data[0].count()", "len(data....
How to get one value at a time from a generator function in Python?
...en by subclassing. In Python 3, however, this function has been renamed to __next__(), to be consistent with other special functions.
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Conditional import of modules in Python
...ad of relying on the user; here's pySerial doing it as an example.
serial/__init__.py
import sys
if sys.platform == 'cli':
from serial.serialcli import Serial
else:
import os
# chose an implementation, depending on os
if os.name == 'nt': # sys.platform == 'win32':
from se...
What is a callback function?
...ant is to be able to call factorial in the following way:
factorial(really_big_number, what_to_do_with_the_result)
The second parameter, what_to_do_with_the_result, is a function you send along to factorial, in the hope that factorial will call it on its result before returning.
Yes, this means...
Can I use git diff on untracked files?
...es by simply supplying the path to both files.
git diff --no-index tracked_file untracked_file
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SVN Error - Not a working copy
...ch worked for the OP) didn't fix it. Here's what I did:
$ mv papers papers_
$ svn cleanup
$ svn revert papers
Reverted 'papers'
$ mv papers_/ papers
$ svn add papers
That worked.
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Reload an iframe with jQuery
...
This Jquery worked like a charm for me: $('#map_iframe').attr('src', $('#map_iframe').attr('src'));
– Topher Hunt
Jul 1 '14 at 19:00
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...
端侧AI（OnDeviceAI）使用指导 · App Inventor 2 中文网
...，将同名事件的处理合并到一个事件积木中。
when 按钮_加载.Click() {
OnDeviceAI1.LoadModel("model.ms")
}
when OnDeviceAI1.ModelLoaded(输入信息JSON) {
标签1.Text = 输入信息JSON
}
when OnDeviceAI1.Error(错误信息) {
标签1.Text = 错误信息
}
案...