Is it possible to set a single variable value for multiple attributes simultaneously in Javascript?

Question

Is it possible to set a single variable value for multiple attributes simultaneously in Javascript?

I would like to specify the horizontal padding of a styled element as variable 'x' and the vertical padding as variable 'y'. Here's one way to achieve this:

var docex = document.getElementById.style;
docex.paddingTop = y;
docex.paddingBottom = y;
docex.paddingLeft = x;
docex.paddingRight = x;

Is there a more concise method to accomplish this, perhaps something like:

var docex = document.getElementById.style;
docex.paddingTop = docex.paddingBottom = y;
docex.paddingLeft = docex.paddingRight = x;

However, it seems that the above approach might not work and could lead to declaring a global variable, according to another question I found on this site. So, what is the most efficient and minimal way to implement a similar idea using vanilla JavaScript?

Thank you in advance!

javascript html css

Answer 1

Answer №1

If you're looking to simplify your CSS code, you can utilize the short form rule like this:

example.padding = y + " " + x;

This will establish y as both top and bottom padding, while x will represent the left and right padding.

Reference at MDN

Answer 2

If you're looking to simplify your CSS code, you can utilize the short form rule like this:

example.padding = y + " " + x;

This will establish y as both top and bottom padding, while x will represent the left and right padding.

Reference at MDN

Answer 3

Answer №2

However, my understanding is that the above scenario would not function as expected and would result in declaring a global variable

That assumption is incorrect.

Let's examine these two instances:

var foo = bar = 2;

The above code snippet does the following:

Declares foo as a local variable
Sets bar to 2, implicitly creating bar globally in the process
Assigns bar to foo

obj.foo = obj.bar = 2;

This piece of code performs the following actions:

Sets obj.bar to 2, implicitly creating bar as a property of obj if it doesn't already exist
Assigns obj.bar to obj.foo, implicitly creating foo as a property of obj if it doesn't already exist

No global variable is created because there is no reference to a variable name within the code.

On another note, if you are changing all padding properties, consider utilizing the padding shorthand property instead of individually adjusting each one.

padding: <top> <right> <bottom> <left>

or

padding: <vertical> <horizontal>

Therefore:

docex.padding = y + " " + x;

Answer 4

However, my understanding is that the above scenario would not function as expected and would result in declaring a global variable

That assumption is incorrect.

Let's examine these two instances:

var foo = bar = 2;

The above code snippet does the following:

Declares foo as a local variable
Sets bar to 2, implicitly creating bar globally in the process
Assigns bar to foo

obj.foo = obj.bar = 2;

This piece of code performs the following actions:

Sets obj.bar to 2, implicitly creating bar as a property of obj if it doesn't already exist
Assigns obj.bar to obj.foo, implicitly creating foo as a property of obj if it doesn't already exist

No global variable is created because there is no reference to a variable name within the code.

On another note, if you are changing all padding properties, consider utilizing the padding shorthand property instead of individually adjusting each one.

padding: <top> <right> <bottom> <left>

or

padding: <vertical> <horizontal>

Therefore:

docex.padding = y + " " + x;

Answer 5

Answer №3

If you want to achieve this, utilize the style.padding property.

let width = "50px";
let height = "25px";

let element = document.getElementById('o');

element.style.padding = height + ' ' + width;

#o{
  width:200px;
  height:100px;
  border:1px solid black;
  box-sizing:border-box;
}
#i{
  width:100px;
  height:50px;
  background:red;
}

<div id="o">
<div id="i">
  </div></div>

Answer 6

If you want to achieve this, utilize the style.padding property.

let width = "50px";
let height = "25px";

let element = document.getElementById('o');

element.style.padding = height + ' ' + width;

#o{
  width:200px;
  height:100px;
  border:1px solid black;
  box-sizing:border-box;
}
#i{
  width:100px;
  height:50px;
  background:red;
}

<div id="o">
<div id="i">
  </div></div>

Is it possible to set a single variable value for multiple attributes simultaneously in Javascript?

Answer №1

Answer №2

Answer №3

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