大约有 30,000 项符合查询结果(耗时:0.0376秒) [XML]
Call a global variable inside module
I have a typescript file called Projects.ts that I want to reference a global variable declared in a bootstrap plugin called bootbox.js .
...
How do I clear stuck/stale Resque workers?
...esn't include a check for whether the worker should be unregistered before calling unregister_worker? Is there a way to determine this?
– user5243421
May 10 '15 at 4:51
...
Safe String to BigDecimal conversion
...
The following sample code works well (locale need to be obtained dynamically)
import java.math.BigDecimal;
import java.text.NumberFormat;
import java.text.DecimalFormat;
import java.text.ParsePosition;
import java.util.Locale;
class TestBigDecimal {
public static void main(String[] args) {...
Get first key in a (possibly) associative array?
...
2019 Update
Starting from PHP 7.3, there is a new built in function called array_key_first() which will retrieve the first key from the given array without resetting the internal pointer. Check out the documentation for more info.
You can use reset and key:
reset($array);
$first_key = key...
JavaScript: location.href to open in new window/tab?
...
You can also open a new tab calling to an action method with parameter like this:
var reportDate = $("#inputDateId").val();
var url = '@Url.Action("PrintIndex", "Callers", new {dateRequested = "findme"})';
window.open(window.location.href = ur...
What is an Intent in Android?
...can use to request an action from another app component
An Intent is basically a message to say you did or want something to happen. Depending on the intent, apps or the OS might be listening for it and will react accordingly. Think of it as a blast email to a bunch of friends, in which you tell y...
Changing the width of Bootstrap popover
... element. The new Bootstrap ensures that if you use form-control you basically have a full-width input element.
23 Answer...
How do you get the magnitude of a vector in Numpy?
...s per loop
There does, however, seem to be some overhead associated with calling it that may make it slower with small inputs:
In [2]: a = np.arange(100)
In [3]: %timeit np.sqrt(a.dot(a))
100000 loops, best of 3: 3.73 µs per loop
In [4]: %timeit np.sqrt(np.einsum('i,i', a, a))
100000 loops, be...
Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
...
These events are called in the following order:
beforeTextChanged(CharSequence s, int start, int count, int after).
This means that the characters are about to be replaced with some new text. The text is uneditable.
Use: when you need to ta...
Why is there an injected class name?
...turn X(); }
};
Is the create() function creating a temporary X object or calling the function X? At namespace scope it would call the function, so the purpose of the injected-class-name is to ensure that within the body of X the name always finds the class itself (because name lookup starts in the...