大约有 30,000 项符合查询结果（耗时：0.0369秒） [XML]
Test if element is present using Selenium WebDriver?
...
Good call djangofan! I successfully used this strategy by changing the driver timeouts' implicit wait to zero, then changing it back to its previous value.
– emery
May 27 '15 at 17:18
...
How to highlight text using javascript
...(p === null) return;
var children = Array.prototype.slice.call(p.childNodes), i, cur;
if (children.length)
{
for (i = 0; i < children.length; i++)
{
cur = children[i];
...
How to avoid having class data shared among instances?
... problem you face is that x.list and y.list are the same list, so when you call append on one, it affects the other.
– Matt Moriarity
Nov 5 '09 at 14:04
...
Capture iframe load complete event
...to you, but generally the best way is to:
1) create your iframe programatically
It makes sure your load listener is always called by attaching it before the iframe starts loading.
<script>
var iframe = document.createElement('iframe');
iframe.onload = function() { alert('myframe is loaded')...
Call an activity method from a fragment
Trying to call a method in my activity from a fragment. I want the fragment to give the method data and to get the data when the method return. I want to achieve similar to call on a static method, but without the use of static because it create problems in the activity.
...
How do you serialize a model instance in Django?
...ict_obj = model_to_dict( obj )
You now just need one straight json.dumps call to serialize it to json:
import json
serialized = json.dumps(dict_obj)
That's it! :)
share
|
improve this answer
...
Is it possible to Turn page programmatically in UIPageViewController?
Is it possible to turn page programmatically in UIPageViewController ?
17 Answers
17
...
Is there a difference between “==” and “is”?
...ality from identity
If is is true, equality can usually be inferred - logically, if an object is itself, then it should test as equivalent to itself.
In most cases this logic is true, but it relies on the implementation of the __eq__ special method. As the docs say,
The default behavior for ...
add created_at and updated_at fields to mongoose schemas
...mongoose schema, without having to pass them in everytime new MyModel() is called?
19 Answers
...
How to do parallel programming in Python?
...o-copy serialization.
Error messages are propagated nicely.
These function calls can be composed together, e.g.,
@ray.remote
def f(x):
return x + 1
x_id = f.remote(1)
y_id = f.remote(x_id)
z_id = f.remote(y_id)
ray.get(z_id) # returns 4
In addition to invoking functions remotely, classes can...