Is there a way to modify Font Awesome icon and text based on a specific condition?

Question

Is there a way to modify Font Awesome icon and text based on a specific condition?

component.html

<i [title]="CardData.quantity > 1 || _ShippingVariable > 1 ? CannotShip : FreeShipping" 
   [ngClass]="{'fa': true,'fa-youtube': socialMediaLink.socialMediaType === 'YOUTUBE',}">
</i>

ShippingVairable is derived from component.ts

My goal is to have the icon be the CrossFontAwesomeIcon in red if _ShippingVariable=0, and the CheckFontAwesomeIcon in green if _ShippingVariable=1.

If anyone has resources or tutorials on Angular NgClass that could help me understand how to dynamically change CSS based on conditions, please let me know.

angular typescript ng-class

Answer 1

Answer №1

Consider using this approach instead of [ngClass]

//  Your way
<i [title]="CardData.quantity > 1 || _ShippingVariable > 1 ? CannotShip : FreeShipping" 
   [ngClass]="{'fa': true,'fa-youtube': socialMediaLink.socialMediaType === 'YOUTUBE',}">
</i>

// My recommendation
<i [title]="CardData.quantity > 1 || _ShippingVariable > 1 ? CannotShip : FreeShipping" 
   [class.fa-youtube]="socialMediaLink.socialMediaType === 'YOUTUBE'"
   class="fa" // It appears you always want this class, so keep it outside of conditions
>
</i>

Answer 2

Consider using this approach instead of [ngClass]

//  Your way
<i [title]="CardData.quantity > 1 || _ShippingVariable > 1 ? CannotShip : FreeShipping" 
   [ngClass]="{'fa': true,'fa-youtube': socialMediaLink.socialMediaType === 'YOUTUBE',}">
</i>

// My recommendation
<i [title]="CardData.quantity > 1 || _ShippingVariable > 1 ? CannotShip : FreeShipping" 
   [class.fa-youtube]="socialMediaLink.socialMediaType === 'YOUTUBE'"
   class="fa" // It appears you always want this class, so keep it outside of conditions
>
</i>

Answer 3

Answer №2

It's quite straightforward: Check out this demonstration

// Suppose you have 2 boolean flags in your component.ts file
boolFlag1: boolean = true;
boolFlag2: boolean = false;

// In your HTML/CSS, you can define any classes

// You want 'class-1' to always be present, 'class-2' to only appear when boolFlag1 is true, and 'class-3' when boolFlag2 is true

Here's how you can achieve that:

<div 
   class="class-1" // This class will always be applied
  [class.class-2]="boolFlag1" // Class2 will be applied when boolFlag1 is true
  [class.class-3]="boolFlag2" // Class3 will be applied when boolFlag2 is true
>
</div>

// In this example, class-3 will not be applied as I have set boolFlag2 to be false

Answer 4

It's quite straightforward: Check out this demonstration

// Suppose you have 2 boolean flags in your component.ts file
boolFlag1: boolean = true;
boolFlag2: boolean = false;

// In your HTML/CSS, you can define any classes

// You want 'class-1' to always be present, 'class-2' to only appear when boolFlag1 is true, and 'class-3' when boolFlag2 is true

Here's how you can achieve that:

<div 
   class="class-1" // This class will always be applied
  [class.class-2]="boolFlag1" // Class2 will be applied when boolFlag1 is true
  [class.class-3]="boolFlag2" // Class3 will be applied when boolFlag2 is true
>
</div>

// In this example, class-3 will not be applied as I have set boolFlag2 to be false

Answer 5

Answer №3

Dear Srikar Phani Kumar Marti, I have gained a better understanding of [class] and [ngClass] thanks to your guidance. Here is how I implemented it:

 <i 
      [class.text-success]="CardData.quantity > 1 || _ProductQuantity > 1"
      [ngClass]="{'fa': true,'far fa-check-square': CardData.quantity > 1 || 
 _ProductQuantity > 1, 'far fa-times-circle': CardData.quantity < 1 || 
 _ProductQuantity < 1}"
      [class.text-danger]="CardData.quantity < 1 || _ProductQuantity < 1"
      >
      {{CardData.quantity < 1 || _ProductQuantity < 1 ? "Cannot
      Ship" : "Free
      Shipping"}}
      </i>

///// By Srikar

// Please remember you can do this too to keep the HTML clean and neat.

// in component.ts file, create a variable for the classes

conditionalClasses = {
     'fa': true,
     'far fa-check-square': CardData.quantity > 1 || _ProductQuantity > 1, 
     'far fa-times-circle': CardData.quantity < 1 || _ProductQuantity < 1
}

// in HTML file, you can do this too! 
<i 
    [class.text-success]="CardData.quantity > 1 || _ProductQuantity > 1"
    [ngClass]="conditionalClasses"
    [class.text-danger]="CardData.quantity < 1 || _ProductQuantity < 1"
>
    {{
       (CardData.quantity < 1 || _ProductQuantity < 1) 
          ? "Cannot Ship" 
          : "Free Shipping"
    }}
</i>

Answer 6

Dear Srikar Phani Kumar Marti, I have gained a better understanding of [class] and [ngClass] thanks to your guidance. Here is how I implemented it:

 <i 
      [class.text-success]="CardData.quantity > 1 || _ProductQuantity > 1"
      [ngClass]="{'fa': true,'far fa-check-square': CardData.quantity > 1 || 
 _ProductQuantity > 1, 'far fa-times-circle': CardData.quantity < 1 || 
 _ProductQuantity < 1}"
      [class.text-danger]="CardData.quantity < 1 || _ProductQuantity < 1"
      >
      {{CardData.quantity < 1 || _ProductQuantity < 1 ? "Cannot
      Ship" : "Free
      Shipping"}}
      </i>

///// By Srikar

// Please remember you can do this too to keep the HTML clean and neat.

// in component.ts file, create a variable for the classes

conditionalClasses = {
     'fa': true,
     'far fa-check-square': CardData.quantity > 1 || _ProductQuantity > 1, 
     'far fa-times-circle': CardData.quantity < 1 || _ProductQuantity < 1
}

// in HTML file, you can do this too! 
<i 
    [class.text-success]="CardData.quantity > 1 || _ProductQuantity > 1"
    [ngClass]="conditionalClasses"
    [class.text-danger]="CardData.quantity < 1 || _ProductQuantity < 1"
>
    {{
       (CardData.quantity < 1 || _ProductQuantity < 1) 
          ? "Cannot Ship" 
          : "Free Shipping"
    }}
</i>

Is there a way to modify Font Awesome icon and text based on a specific condition?

Answer №1

Answer №2

Answer №3

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