大约有 16,000 项符合查询结果（耗时：0.0271秒） [XML]
TypeScript: casting HTMLElement
...
TypeScript uses '<>' to surround casts, so the above becomes:
var script = <HTMLScriptElement>document.getElementsByName("script")[0];
However, unfortunately you cannot do:
var script = (<HTMLScriptElement[]>document.getElementsByName(id))[0];
You get the...
What is “rvalue reference for *this”?
...s a just a "marketing statement". The type of *this never changes, see the bottom of this post. It's way easier to understand it with this wording though.
Next, the following code chooses the function to be called based on the ref-qualifier of the "implicit object parameter" of the function†:
// t...
Get elements by attribute when querySelectorAll is not available without using libraries?
...
You could write a function that runs getElementsByTagName('*'), and returns only those elements with a "data-foo" attribute:
function getAllElementsWithAttribute(attribute)
{
var matchingElements = [];
var allElements = document.getElementsByTagName('*');
for (var i...
What's “this” in JavaScript onclick?
...
In the case you are asking about, this represents the HTML DOM element.
So it would be the <a> element that was clicked on.
share
|
improve this...
Is there shorthand for returning a default value if None in Python? [duplicate]
...d the empty string if x is null. I've found it useful for working with databases.
5 Answers
...
Changing a specific column name in pandas DataFrame
...[28]: df
Out[28]:
one three new_name
0 1 a 9
1 2 b 8
2 3 c 7
3 4 d 6
4 5 e 5
Following is the docstring for the rename method.
Definition: df.rename(self, index=None, columns=None, copy=True, inplace=False)
Docstring:...
How Does Modulus Divison Work
... a modulo division is the remainder of an integer division of the given numbers.
That means:
27 / 16 = 1, remainder 11
=> 27 mod 16 = 11
Other examples:
30 / 3 = 10, remainder 0
=> 30 mod 3 = 0
35 / 3 = 11, remainder 2
=> 35 mod 3 = 2
...
Print number of keys in Redis
Is there a way to print the number of keys in Redis?
8 Answers
8
...
Refused to display in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'
I am developing a website that is supposed to be responsive so that people can access it from their phones. The site has got some secured parts that can be logged into using Google, Facebook, ...etc (OAuth).
...
How can I grep for a string that begins with a dash/hyphen?
... grep for the string that starts with a dash/hyphen, like -X , in a file, but it's confusing this as a command line argument.
...