大约有 48,000 项符合查询结果（耗时：0.0574秒） [XML]
Resizing an image in an HTML5 canvas
I'm trying to create a thumbnail image on the client side using javascript and a canvas element, but when I shrink the image down, it looks terrible. It looks as if it was downsized in photoshop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to lo...
Using bitwise OR 0 to floor a number
A colleague of mine stumbled upon a method to floor float numbers using a bitwise or:
6 Answers
...
How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
In PostgreSQL I have a table with a varchar column. The data is supposed to be integers and I need it in integer type in a query. Some values are empty strings.
The following:
...
Inline elements shifting when made bold on hover
I created a horizontal menu using a HTML lists and CSS. Everything works as it should except when you hover over the links. You see, I created a bold hover state for the links, and now the menu links shift because of the bold size difference.
...
What ports does RabbitMQ use?
What ports does RabbitMQ Server use or need to have open on the firewall for a cluster of nodes?
4 Answers
...
Can you set a border opacity in CSS?
Is there a straight forward CSS way to make the border of an element semi-transparent with something like this?
9 Answers
...
What does “fragment” mean in ANTLR?
What does fragment mean in ANTLR?
4 Answers
4
...
How to round a number to significant figures in Python
I need to round a float to be displayed in a UI. E.g, to one significant figure:
20 Answers
...
What does `kill -0 $pid` in a shell script do?
Basically, what signal does '0' represent, because here I see SIGNAL numbers starting from 1.
6 Answers
...
Suppress warning CS1998: This async method lacks 'await'
I've got an interface with some async functions. Some of the classes that implements the interface does not have anything to await, and some might just throw. It's a bit annoying with all the warnings.
...