Approach needed to assign identical CSS property to various classes that are dynamically created via ngFor in Angular?

Question

Approach needed to assign identical CSS property to various classes that are dynamically created via ngFor in Angular?

I am currently working on writing CSS for dynamically generated classes. I have set up the classes using ngFor as shown below:

<div style="max-height: 450px;" *ngFor="let item of data; let i = index" class="card{{i + 1}}">
.....
</div>

Now, I am in the process of styling these dynamic classes with CSS rules like this:

@media (min-width: 1399px) {
  .card2,
  .card6 {
   padding-left: 0px;
   padding-right: 0px;
  }
  .card3,
  .card7 {
   padding-right: 0px;
  }
}
@media (min-width: 576px) and (max-width: 768px) {
  .card2,
  .card4,
  .card6 {
   padding-left: 0px;
 }
}

As the number of divs may exceed 20, I am looking for a more efficient way to define these CSS rules without having to list each card individually. Is there a shorter method like using card(n+1) {....}?

css angular

Answer 1

Answer №1

If you're working with sass or less, you can utilize control directives in your sass code like this:

@for $i from 0 through 20 {
  .card-#{$i} { padding-left: 0px; }
}

Check out a live example here.

Answer 2

If you're working with sass or less, you can utilize control directives in your sass code like this:

@for $i from 0 through 20 {
  .card-#{$i} { padding-left: 0px; }
}

Check out a live example here.

Answer 3

Answer №2

Assign your existing classes as IDs and utilize a shared class for all elements.

class="block" id="block-{{ i }}"

Answer 4

Assign your existing classes as IDs and utilize a shared class for all elements.

class="block" id="block-{{ i }}"

Answer 5

Answer №3

After carefully reviewing your question, I have provided a solution for dynamically inserting classes in my implementation here.

The key is to create a function that will return the name of your desired class.

If you are looking to apply specific CSS styles to each card element incrementally, you can achieve this by using the following code snippet:

card:nth-child(n+1){
  background-color: red;
}

Answer 6

After carefully reviewing your question, I have provided a solution for dynamically inserting classes in my implementation here.

The key is to create a function that will return the name of your desired class.

If you are looking to apply specific CSS styles to each card element incrementally, you can achieve this by using the following code snippet:

card:nth-child(n+1){
  background-color: red;
}

Answer 7

Answer №4

If there isn't a noticeable pattern to follow and sass is not an option, one alternative could be utilizing the [ngStyle] directive. Here's an example:

<div *ngFor="let item of data; let i = index" class="card-{{i + 1 }}" [ngStyle]="calcStyle(item, i)">
.....
</div>

You can define your desired styles in your .ts file by creating a function like this:

calcStyle(item, i){
  if (i==6){
     return {
       'padding-left': '0px;',
       'padding-right': '0px;'
       }
    }
 }

However, I would recommend exploring options beyond setting padding based on the index of each item. Consider utilizing a grid system for better results.

Answer 8

If there isn't a noticeable pattern to follow and sass is not an option, one alternative could be utilizing the [ngStyle] directive. Here's an example:

<div *ngFor="let item of data; let i = index" class="card-{{i + 1 }}" [ngStyle]="calcStyle(item, i)">
.....
</div>

You can define your desired styles in your .ts file by creating a function like this:

calcStyle(item, i){
  if (i==6){
     return {
       'padding-left': '0px;',
       'padding-right': '0px;'
       }
    }
 }

However, I would recommend exploring options beyond setting padding based on the index of each item. Consider utilizing a grid system for better results.

Answer 9

Answer №5

Super simple! Modify the data type of your class attribute to allow for JavaScript instead of just a string, then incorporate concatenation.

<div
  style="max-height: 450px;"
  *ngFor="let item of data; let i = index"
  [class]="'card' + (i + 1)">
  .....
</div>

Answer 10

Super simple! Modify the data type of your class attribute to allow for JavaScript instead of just a string, then incorporate concatenation.

<div
  style="max-height: 450px;"
  *ngFor="let item of data; let i = index"
  [class]="'card' + (i + 1)">
  .....
</div>

Approach needed to assign identical CSS property to various classes that are dynamically created via ngFor in Angular?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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