/TypeScript/Angular conditional directives

Angular conditional directives

//if 
<div *ngIf='[condition]'> </div>   
  //if [condition]==true the div will be shown

//for 
<div *ngFor='let [data] of [dataArray]; let i=index;'>
  <h2> {{i}} {{data.title}} </h2>
  <img src='{{data.image}}' />
  </div>   
  //the data contained in an array will be displayed element by element
  //similar to the function .map() in React

// ngStyle (conditional Style)
<div *ngFor='let [data] of [dataArray]; let i=index;'>
  <h2 [style.background]="i>1? 'green': 'red'"> {{i}} {{data.title}} </h2>

  </div> 

//if the index of the element is 1 or 0, the background will be red, if it is over 1 the background will be green

-1

Similar codes

8 votes391 views2 answers
Typescript react elements
TypeScript
1 vote320 views1 answer
How to add new line at n typography
TypeScript
18 votes335 views2 answers
Fluttter http get
TypeScript
0 vote294 views1 answer
Lists - Learn C#
TypeScript
1 vote332 views1 answer
Cannot find module jquery typescript ionic
TypeScript
0 vote359 views3 answers
Typescript type of function
TypeScript
0 vote358 views1 answer
Bibtex remove brackets in note field
TypeScript
0 vote374 views1 answer
Export const typescript
TypeScript
0 vote324 views1 answer
Angular/RxJs When should I unsubscribe from `Subscription`
TypeScript
0 vote307 views2 answers
Property 'attributes' does not exist on type 'eventtarget'
TypeScript