大约有 16,000 项符合查询结果（耗时：0.0306秒） [XML]
Set transparent background of an imageview on Android
...the percentage number by 100 and multiply by 255 to get the decimal value. Convert the decimal to hexadecimal here.
For example, for 50%, 50/100 * 255 = 127. Using the link we get hexadecimal value 7F.
Source: Android: how to create a transparent or opaque background
...
Django template how to look up a dictionary value with a variable
...he function is in the form of a string, so perhaps use ast.literal_eval to convert the string to a dictionary first, like in this example.
With this edit, the code should look like this:
# code for custom template tag
@register.filter(name='lookup')
def lookup(value, arg):
value_dict = ast.liter...
How can I recursively find all files in current and subfolders based on wildcard matching?
... image was copied from GitHub, but I believe they're using asciinema, then converted to GIF format, but I'm not sure.
– kenorb
Feb 11 '19 at 23:38
...
What is “loose coupling?” Please provide examples
...pled Example:
public class CartEntry
{
public float Price;
public int Quantity;
}
public class CartContents
{
public CartEntry[] items;
}
public class Order
{
private CartContents cart;
private float salesTax;
public Order(CartContents cart, float salesTax)
{
...
How do I do multiple CASE WHEN conditions using SQL Server 2008?
...or it work correctly, needed to add a year and month variable
declare @yr int
declare @mth int
set @yr=(select case when month(getdate())=1 then YEAR(getdate())-1 else YEAR(getdate())end)
set @mth=(select case when month(getdate())=1 then month(getdate())+11 else month(getdate())end)
Now I just ...
How to get last N records with activerecord?
...d desc LIMIT 5"
The latter is an unevaluated scope. You can chain it, or convert it to an array via .to_a. So:
Something.limit(50000).order('id desc').count
... takes a second.
share
|
improve ...
Query-string encoding of a Javascript Object
... "100%"
}));
// foo=hi%20there&bar=100%25
Edit: this one also converts recursive objects (using php "array" notation for the query string)
serialize = function(obj, prefix) {
var str = [],
p;
for (p in obj) {
if (obj.hasOwnProperty(p)) {
var k = prefix ? pref...
Declare a constant array
...re updates to the type system. Otherwise if you defined a function f(xs [5]int) you wouldn't know if the array passed was constant or mutable.
– Thomas Ahle
Jul 6 '14 at 16:13
...
Repeat Character N Times
... 'use strict';
if (this == null) {
throw new TypeError('can\'t convert ' + this + ' to object');
}
var str = '' + this;
count = +count;
if (count != count) {
count = 0;
}
if (count < 0) {
throw new RangeError('repeat count must be non-negative');
...
What is the instanceof operator in JavaScript?
...When you declare a variable you give it a specific type.
For instance:
int i;
float f;
Customer c;
The above show you some variables, namely i, f, and c. The types are integer, float and a user defined Customer data type. Types such as the above could be for any language, not just JavaScript. ...