/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

0 vote416 views1 answer
Warning: format ‘%s’ expects argument of type ‘char *’, but argument 2 has type ‘int’
TypeScript
1 vote308 views1 answer
Denoot
TypeScript
0 vote225 views0 answer
TypeScript
8 votes281 views2 answers
How to sort a list of objects python
TypeScript
1 vote309 views1 answer
Test management
TypeScript
1 vote276 views1 answer
How to count positive elements numpy
TypeScript
1 vote317 views1 answer
How to convert millisecond to second to date momentjs
TypeScript
0 vote300 views1 answer
UTorrent Default Download Folder - Linux
TypeScript
2 votes282 views1 answer
State in react typescript
TypeScript
2 votes271 views1 answer
Jquery check value exists in array
TypeScript