Ngclass angular

Ngstyle

<div [ngStyle]="{'background-color':person.country === 'UK' ? 'green' : 'red' }"></<div>

Angular ngclass

      
        content_copy
      
      <some-element [ngClass]="'first second'">...</some-element>

<some-element [ngClass]="['first', 'second']">...</some-element>

<some-element [ngClass]="{'first': true, 'second': true, 'third': false}">...</some-element>

<some-element [ngClass]="stringExp|arrayExp|objExp">...</some-element>

<some-element [ngClass]="{'class1 class2 class3' : true}">...</some-element>

Source: angular.io

NgClass

//Type one
[class.my_class] = "step === 'step1'"

//Type two
[ngClass]="{'my_class': step === 'step1'}"
and multiple option:
[ngClass]="{'my_class': step === 'step1', 'my_class2' : step === 'step2' }"

//Type three
[ngClass]="{1 : 'my_class1', 2 : 'my_class2', 3 : 'my_class4'}[step]"

//Type four
[ngClass]="step == 'step1' ? 'my_class1' : 'my_class2'"

Source: stackoverflow.com

Angular 8 ngClass If

[ngClass]="(step=='step1')?'my-class1':'my-class2'"

Source: stackoverflow.com

Ngclass

 [ngClass]="eventCondition ? '':'disabled_btn'"

Ngclass angular

<div [ngClass]="{ 
'green': number > 5,
  'red': number <= 5,
}" ></div>
//if the number is over 5, the class 'green' will be added to the div.
//if the number is below or equal 5, the class 'red' will be added to the div.

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