Questions tagged [shorthand]
355 questions
1399
votes
14 answers
Multiline string literal in C#
Is there an easy way to create a multiline string literal in C#?
Here's what I have now:
string query = "SELECT foo, bar"
+ " FROM table"
+ " WHERE id = 42";
I know PHP has
<<
Chet
- 21,375
- 10
- 40
- 58
648
votes
7 answers
CSS transition shorthand with multiple properties?
I can't seem to find the correct syntax for the CSS transition shorthand with multiple properties. This doesn't do anything:
.element {
-webkit-transition: height .5s, opacity .5s .5s;
-moz-transition: height .5s, opacity .5s .5s;
…
Gregory Bolkenstijn
- 10,003
- 7
- 36
- 38
309
votes
8 answers
Omitting the second expression when using the if-else shorthand
Can I write the if else shorthand without the else?
var x=1;
x==2 ? dosomething() : doNothingButContinueCode();
I've noticed putting null for the else works (but I have no idea why or if that's a good idea).
Edit: Some of you seem bemused why…
Nikki
- 3,664
- 2
- 15
- 14
266
votes
8 answers
$(document).ready shorthand
Is the following shorthand for $(document).ready?
(function($){
//some code
})(jQuery);
I see this pattern used a lot, but I'm unable to find any reference to it. If it is shorthand for $(document).ready(), is there any particular reason it might…
Mark Brown
- 12,026
- 8
- 27
- 32
155
votes
3 answers
Difference in C# between different getter styles
I do sometimes see abbreviations in properties for the getter. E.g. those two types:
public int Number { get; } = 0
public int Number => 0;
Can someone please tell me if there are any differences between those two. How do they behave? Are both of…
ˈvɔlə
- 9,204
- 10
- 63
- 89
111
votes
2 answers
PHP shorthand for isset()?
Is there a shorthand way to assign a variable to something if it doesn't exist in PHP?
if(!isset($var) {
$var = "";
}
I'd like to do something like
$var = $var | "";
brentonstrine
- 21,694
- 25
- 74
- 120
88
votes
6 answers
Which "if" construct is faster - statement or ternary operator?
There are two types of if statements in java - classic: if {} else {} and shorthand: exp ? value1 : value2. Is one faster than the other or are they the same?
statement:
int x;
if (expression) {
x = 1;
} else {
x = 2;
}
ternary operator:
int x…
Rogach
- 26,050
- 21
- 93
- 172
68
votes
6 answers
What does "nit" mean in hacker-speak?
When someone writes "nit: removed whitespace" on a commit, what does "nit" mean? I've also seen it capitalized as if it were an abbreviation (i.e. NIT). For an example usage see this post:
Of course there is a difference between a comment saying:…
kdauria
- 6,300
- 4
- 34
- 53
55
votes
4 answers
How do you declare x and y so that x+=y gives a compilation error and x=x+y not?
I ran into this question in an interview and couldn't come up with a solution. I know the vice versa can be done as shown in What does the "+=" operator do in Java?
So the question was like below.
..... x = .....;
..... y = .....;
x += y;…
knshn
- 3,401
- 1
- 21
- 22
50
votes
10 answers
JavaScript shorthand if statement, without the else portion
So I'm using a shorthand JavaScript if/else statement (I read somewhere they're called Ternary statements?)
this.dragHandle.hasClass('handle-low') ? direction = "left" : direction = "right"
This works great, but what if later I want to use just a…
ahren
- 16,803
- 5
- 50
- 70
47
votes
7 answers
Shorthand if/else statement Javascript
I'm wondering if there's a shorter way to write this:
var x = 1;
if(y != undefined) x = y;
I initially tried x = y || 1, but that didn't work. What's the correct way to go about this?
Elliot Bonneville
- 51,872
- 23
- 96
- 123
40
votes
2 answers
Other Ruby Map Shorthand Notation
I am aware of the shorthand for map that looks like:
[1, 2, 3, 4].map(&:to_s)
> ["1", "2", "3", "4"]
I was told this is shorthand for:
[1, 2, 3, 4].map{|i| i.to_s}
This makes perfect sense. My question is this: It seems there should be an easier…
trh178
- 11,228
- 5
- 28
- 37
37
votes
6 answers
Try/catch oneliner available?
Just as you can convert the following:
var t;
if(foo == "bar") {
t = "a";
} else {
t = "b";
}
into:
t = foo == "bar" ? "a" : "b";
, I was wondering if there is a shorthand / oneline way to convert this:
var t;
try {
t = someFunc();
}…
pimvdb
- 151,816
- 78
- 307
- 352
36
votes
10 answers
Overview of PHP shorthand
I've been programming in PHP for years now, but I've never learned how to use any shorthand. I come across it from time to time in code and have a hard time reading it, so I'd like to learn the different shorthand that exists for the language so…
James Simpson
- 13,488
- 26
- 83
- 108
34
votes
5 answers
c# shorthand for if not null then assign value
Is there any shorthand in c# now that will cutdown the following code:
var testVar1 = checkObject();
if (testVar1 != null)
{
testVar2 = testVar1;
}
In this situation only want to assign testVar2 if testVar1 is not null from the CheckObject()…
Matt
- 3,305
- 11
- 54
- 98