ngclass angular 12 example

Example 1: 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'"

Example 2: angular ngclass

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      <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>