大约有 30,000 项符合查询结果（耗时：0.0490秒） [XML]
How do I get the current date in JavaScript?
...ntaining the current date and time.
var today = new Date();
var dd = String(today.getDate()).padStart(2, '0');
var mm = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!
var yyyy = today.getFullYear();
today = mm + '/' + dd + '/' + yyyy;
document.write(today);
This wi...
Python : List of dict, if exists increment a dict value, if not append a new dict
...store the visited urls as a LIST?
If you sort it as a dict, indexed by url string, for example, it would be way cleaner:
urls = {'http://www.google.fr/': dict(url='http://www.google.fr/', nbr=1)}
for url in list_of_urls:
if url in urls:
urls[url]['nbr'] += 1
else:
urls[url]...
What are dictionary view objects?
...termediate list.
Let's use examples. I've a dict with 1000 keys of random strings and digits and k is the key I want to look for
large_d = { .. 'NBBDC': '0RMLH', 'E01AS': 'UAZIQ', 'G0SSL': '6117Y', 'LYBZ7': 'VC8JQ' .. }
>>> len(large_d)
1000
# this is one option; It creates the keys() l...
Foreign key constraints: When to use ON UPDATE and ON DELETE
...containing people from theses company
CREATE TABLE COMPANY (
company_id INT NOT NULL,
company_name VARCHAR(50),
PRIMARY KEY (company_id)
) ENGINE=INNODB;
CREATE TABLE USER (
user_id INT,
user_name VARCHAR(50),
company_id INT,
INDEX company_id_idx (company_id),
...
How do you do a deep copy of an object in .NET? [duplicate]
... bool IsPrimitive(this Type type)
{
if (type == typeof(String)) return true;
return (type.IsValueType & type.IsPrimitive);
}
public static Object Copy(this Object originalObject)
{
return InternalCopy(originalObject, new Dictio...
What is the difference between Numpy's array() and asarray() functions?
...l be returned uncopied iff it's compatible with the specified requirements string.
copy: The input is always copied.
fromiter: The input is treated as an iterable (so, e.g., you can construct an array from an iterator's elements, instead of an object array with the iterator); always copied.
There ...
Drawing a connecting line between two elements [closed]
... the Flowchart demo.
It is available in a free Community edition, and a paid Toolkit edition.
The Toolkit edition wraps the Community edition with a comprehensive data binding layer, as well as several UI widgets for building applications and integrations for popular libraries, and is commercia...
jQuery - getting custom attribute from selected option
... answered Feb 9 '10 at 16:41
Davide GualanoDavide Gualano
11.8k99 gold badges4242 silver badges6161 bronze badges
...
Implode an array with JavaScript?
...ified (literally just join the pieces together), you need to pass an empty string into Javascript's join() otherwise it defaults to using commas as delimiters:
var bits = ['H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd'];
alert(bits.join()); // H,e,l,l,o, ,W,o,r,l,d
alert(bits.join('')); ...
Store query result in a variable using in PL/pgSQL
...g for SELECT INTO:
select test_table.name into name from test_table where id = x;
That will pull the name from test_table where id is your function's argument and leave it in the name variable. Don't leave out the table name prefix on test_table.name or you'll get complaints about an ambiguous re...