大约有 40,000 项符合查询结果（耗时：0.0486秒） [XML]
How to generate random SHA1 hash to use as ID in node.js?
...
Have a look here: How do I use node.js Crypto to create a HMAC-SHA1 hash?
I'd create a hash of the current timestamp + a random number to ensure hash uniqueness:
var current_date = (new Date()).valueOf().toString();
var random = Math....
Reset select2 value and show placeholder
...reset by select2. In my example If locations or grade select boxes are clicked and my select2 has a value than the value of select2 should reset and show the default placeholder. This script is resetting the value but won't show the placeholder
...
How to split a column into two columns?
I have a data frame with one column and I'd like to split it into two columns, with one column header as ' fips' and the other 'row'
...
Why does 2 == [2] in JavaScript?
...ently discovered that 2 == [2] in JavaScript. As it turns out, this quirk has a couple of interesting consequences:
9 An...
Generic List - moving an item within the list
...
I know you said "generic list" but you didn't specify that you needed to use the List(T) class so here is a shot at something different.
The ObservableCollection(T) class has a Move method that does exactly what you want.
pub...
How to get the current loop index when using Iterator?
...
om-nom-nom
59k1111 gold badges171171 silver badges221221 bronze badges
answered Jul 25 '10 at 15:52
Chris DiverChr...
Stripping everything but alphanumeric chars from a string in Python
...
Otto AllmendingerOtto Allmendinger
23.7k66 gold badges5959 silver badges7777 bronze badges
...
Get list of data-* attributes using javascript / jQuery
...ment with zero or more data-* attributes, how can one retrieve a list of key-value pairs for the data.
9 Answers
...
optional parameters in SQL Server stored proc?
...
You can declare like this
CREATE PROCEDURE MyProcName
@Parameter1 INT = 1,
@Parameter2 VARCHAR (100) = 'StringValue',
@Parameter3 VARCHAR (100) = NULL
AS
/* check for the NULL / default value (indicating nothing was passed */
if ...
CSS selector for other than the first child and last child
I am making a very advanced website. My question: Is it possible to select all the other children except for the :first-child and the :last-child ? I know there is a :not() selector but it doesn't work with more than one not in the parentheses. This is what I have:
...