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How do you use the ? : (conditional) operator in JavaScript?
... = 'Hello ' + (username || 'guest');
This is Javascripts equivallent of PHP's shorthand ternary operator ?:
Or even:
var welcomeMessage = 'Hello ' + (username || something || maybethis || 'guest');
It evaluates the variable, and if it's false or unset, it goes on to the next.
...
What is the difference between a .xib file and a .storyboard?
...s between elements defining their position and sizing.
3)Usually fast and allocates less memory.
4)It's not compatible prior to iOS 5 .
5)"Dynamic" and "Prototype" cells can be used easily.
6)Storyboards best to use for the apps with a small to medium amount of screens.
The best Answer I have s...
get current url in twig template?
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@GateKiller This made my Functional Test Fail: Uncaught PHP Exception PHPUnit_Framework_Error_Notice: "Undefined index: REQUEST_URI"
– Robin
Aug 15 '14 at 10:18
...
Can I have multiple background images using CSS?
...adding:0px;
width:1000px;
}
with this HTML structure:
<body
<?php body_class(); ?>>
<div id="topshadow">
</div>
<div id="pageborders">
<div id="page">
</div>
</div>
</body>
...
How do I call one constructor from another in Java?
...hat you mean by "creating" - the object is "created" in that its memory is allocated and the type is set before any constructor bodies are executed. Constructors are initialization rather than creation. In particular, the type of the object is its "final" type right from the start - so if you call a...
Get Insert Statement for existing row in MySQL
...
I wrote a php function that will do this. I needed to make an insert statement in case a record needs to be replaced after deletion for a history table:
function makeRecoverySQL($table, $id)
{
// get the record
$sel...
Don't Echo Out cURL
...
Not the answer you're looking for? Browse other questions tagged php curl or ask your own question.
Clear variable in python
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@Bnicholas However it's not like null in PHP, in that setting a variable to null in PHP gives you similar behaviour in most cases as if you hadn't defined it in the first place. A value of None in Python is quite different from an undefined variable. None is quite l...
How to download source in ZIP format from GitHub?
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Wish this worked, but no luck here: github.com/facebook/php-webdriver --when I add "zipball/master/" to the end of that URL, I just get an error message. I'm echoing the original commenter... I just don't understand why it's so f'ing hard to download source code I see on github. ...
Handling Touch Event in UILabel and hooking it up to an IBAction
...= YES;
UITapGestureRecognizer *tapGesture =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(labelTap)];
[label addGestureRecognizer:tapGesture];
The trick is to enable user interaction.
...