In programming, a dynamic variable is a variable whose address is determined when the program is run. In contrast, a static variable has memory reserved for it at compilation time.
Questions tagged [dynamic-variables]
262 questions
228
votes
9 answers
Using braces with dynamic variable names in PHP
I'm trying to use dynamic variable names (I'm not sure what they're actually called) But pretty much like this:
for($i=0; $i<=2; $i++) {
$("file" . $i) = file($filelist[$i]);
}
var_dump($file0);
The return is null which tells me it's not…
user1159454
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- 3
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111
votes
7 answers
Assigning variables with dynamic names in Java
I'd like to assign a set of variables in java as follows:
int n1,n2,n3;
for(int i=1;i<4;i++)
{
n = 5;
}
How can I achieve this in Java?
Ashish Anand
- 3,531
- 6
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106
votes
8 answers
Are Variable Operators Possible?
Is there a way to do something similar to either of the following:
var1 = 10; var2 = 20;
var operator = "<";
console.log(var1 operator var2); // returns true
-- OR --
var1 = 10; var2 = 20;
var operator = "+";
total = var1 operator var2; // total…
Gary
- 13,303
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21
votes
2 answers
Using the value of a variable as another variables name in Ruby
I'm just starting out in learning Ruby and I've written a program that generates some numbers and assigns them to variables @one, @two, @three etc. The user can then specify a variable to change by inputting it's name (e.g one). I then need to do…
hrickards
- 1,061
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20
votes
5 answers
Replacing Text Inside of Curley Braces JavaScript
I am trying to use JavaScript to dynamically replace content inside of curly braces. Here is an example of my code:
var myString = "This is {name}'s {adjective} {type} in JavaScript! Yes, a {type}!";
var replaceArray = ['name', 'adjective',…
Oliver Spryn
- 16,871
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- 195
19
votes
4 answers
Evaluate dynamic variable name in ansible
I have vars where I put something like this:
vars/main.yml
hello_port: 80
world_port: 81
in my ansbile file I load the vars with
vars_files:
- ./vars/main.yml
This is how I initialize m_name:
- name: set_fact
set_fact:
m_name:
…
Jordan Borisov
- 1,603
- 6
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17
votes
5 answers
Is there an easy way to create dynamic variables with Javascript?
I've built a data-driven google map with different icons that get assigned to the map depending on the type of item located. So if I have 5 types of landmark, and each gets a different icon (store, library, hospital, etc.)-- what I'd like to do is…
julio
- 6,630
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- 82
16
votes
4 answers
Javascript: Server sided dynamic variable names
How would I create dynamic variable names in NodeJS? Some examples say to store in the window variable, but I was assuming that is client-side Javascript. Correct me if I'm wrong.
hexacyanide
- 88,222
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14
votes
3 answers
Can I create dynamic object names in JavaScript?
Possible Duplicate:
javascript - dynamic variables
Dynamic Javascript variable names
I need to create a number of objects on a page and want to name them sequentially. Is there a way to do this in JavaScript?
for (i=0;i
Terry Carnes
- 179
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12
votes
6 answers
JavaScript Dynamic Variable Names
Ok so I want to create variables as a user clicks threw the code every click adds a new variable. I am currently using jquery and javascript I can't do it server side this must be done in the browser.
newCount =…
Cody Weaver
- 4,756
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10
votes
1 answer
Why can't a sub access dynamic variables when used in a "return"ed map in raku?
It seems that a a sub cannot access dynamic variables when it is used inside a map and that map is "return"ed.
Consider this piece of code:
sub start {
my $*something = 'foobar';
# WORKS
say 'first say-something:';
…
Julio
- 5,208
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10
votes
2 answers
value of integral type expected switch with dynamic parameter
Just out of curiosity.
If I have the following Code
public static string Format(dynamic exception)
{
switch (exception.GetType().ToString())
{
case "test":
return "Test2";
}
return null;
}
i get the error "A…
Belial09
- 694
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10
votes
2 answers
Struts 2 dynamic variables
I'm trying to create a dynamic variable in Struts2 using set tag
Zulhalimi Anuar Muhammad
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10
votes
5 answers
Dynamic variable in C#?
Is it possible to use a dynamic variable (not sure about naming) in C#?
In PHP, I can do
$var_1 = "2";
$var_2 = "this is variable 2";
$test = ${"var_".$var_1};
echo $test;
output: this is variable 2;
Can we do this in C#?
Moon
- 22,195
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8
votes
1 answer
Dynamic variables, CALLERS, Scalars, and assignment
I recently noticed that that re-initializing dynamic variables does not have the semantics I expected in most cases using assignment (binding works the way I expected it to, however).
Specifically, in this code:
sub g {
my $*i = CALLERS::<$*i> …
codesections
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