大约有 4,800 项符合查询结果（耗时：0.0338秒） [XML]
When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...ted to stop the execution of that function and display an error message on screen but did not want the entire script to stop executing. The script author could have used throw however it would mean you would have to use a try/catch when calling the function.
return will exit the current scope which...
What's the difference between echo, print, and print_r in PHP?
... print are more or less the same. They are both used to output data to the screen. The differences are small: echo has no return value while print has a return value of 1 so it can be used in expressions. echo can take multiple parameters (although such usage is rare) while print can take one argum...
How to autosize a textarea using Prototype?
...'d rather not let the text area grow beyond a certain size (keep it all on-screen, avoid breaking layout, etc.)
Tested on Firefox 3 and Internet Explorer 6
Code:
(plain vanilla JavaScript)
function FitToContent(id, maxHeight)
{
var text = id && id.style ? id : document.getElementById...
Yes/No message box using QMessageBox
...rces thus takes some time to load and 2)is often or even constantly on the screen for the user to see it.
– rbaleksandar
Nov 5 '14 at 21:35
...
How to hide command output in Bash
...
A process normally has two outputs to screen: stdout (standard out), and stderr (standard error).
Normally informational messages go to sdout, and errors and alerts go to stderr.
You can turn off stdout for a command by doing
MyCommand >/dev/null
and turn...
How to change the color of an svg element?
...: As mentioned in the article commented by @CodeMouse92 icon fonts mess up screen readers (and are possibly bad for SEO). So rather stick to the SVGs.
How to write to a file in Scala?
...t's just 4 lines (well, 4 with IDE line lengths, used 6 here to fit in the screen). IMHO it is now very nice answer.
– samthebest
Nov 23 '13 at 11:08
...
How to show popup message like in Stack Overflow
...The code below shows how to replicate the bars that show at the top of the screen when you get a new badge, first come to the site, etc. For the hovering dialogs that you get when you try to comment too fast, vote for your own question, etc, check out this question where I show how to do this or ju...
How to set RelativeLayout layout params in code not in xml?
For example I want to add 3 buttons on screen: one align left, one align center, last one align right.
5 Answers
...
How to make overlay control above all other controls?
...
Exactly what I needed to lay a "privacy screen" over my entire app window (e.g. to hide sensitive info if user walks away from his desk), with very little code. Awesome!
– Whitzz
Jan 28 at 6:23
...