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What does the line “#!/bin/sh” mean in a UNIX shell script?
...execute the script.
e.g.
#!/usr/bin/perl <--perl script'
#!/usr/bin/php <-- php script
#!/bin/false <--- do-nothing script, because false returns immediately anyways.
It's implemented as a comment so that anything coming in that line will not "relevant" to the interpreter specified. e...
Insert image after each list item
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Try this:
ul li a:after {
display: block;
content: "";
width: 3px;
height: 5px;
background: transparent url('../images/small_triangle.png') no-repeat;
}
You need the content: ""; declaration to give your generated element content, even if tha...
Exclude folder from search but not from the project list
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FYI for Mac users, it's PhpStorm > Preferences > Appearance & Behavior > Scopes
– Wesley Smith
Dec 13 '16 at 3:30
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I get exception when using Thread.sleep(x) or wait()
...r users have said you should surround your call with a try{...} catch{...} block. But since Java 1.5 was released, there is TimeUnit class which do the same as Thread.sleep(millis) but is more convenient.
You can pick time unit for sleep operation.
try {
TimeUnit.NANOSECONDS.sleep(100);
Tim...
Can you help me understand this? “Common REST Mistakes: Sessions are irrelevant”
...data)
in your case i say YES this is RESTy, but try avoiding using native php sessions in your REST API and start generating your own hashed tokens that expire in determined periode of time!
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Use-case of `oneway void` in Objective-C?
... different threads or applications. It tells the system that it should not block the calling thread until the method returns. Without it, the caller will block, even though the method's return type is void. Obviously, it is never used with anything other than void, as doing so would mean the method ...
Show loading image while $.ajax is performed
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I've always liked the BlockUI plugin: http://jquery.malsup.com/block/
It allows you to block certain elements of a page, or the entire page while an ajax request is running.
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SQL injection that gets around mysql_real_escape_string()
...et_charset() / $mysqli->set_charset() / PDO's DSN charset parameter (in PHP ≥ 5.3.6)
OR
Don't use a vulnerable character set for connection encoding (you only use utf8 / latin1 / ascii / etc)
You're 100% safe.
Otherwise, you're vulnerable even though you're using mysql_real_escape_string().....
How to hide elements without having them take space on the page?
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Try setting display:none to hide and set display:block to show.
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What is your most productive shortcut with Vim?
...g source code, very often want to work on whole lines, ranges of lines and blocks of code. However, yy is only one of many way to yank text into the anonymous copy buffer (or "register" as it's called in vi).
The "Zen" of vi is that you're speaking a language. The initial y is a verb. The stateme...