array angular code example

Example 1: ngfor

<li *ngFor="let item of items; index as i; trackBy: trackByFn">...</li>

Example 2: represent array items angular

//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

Example 3: type script array

let list: number[] = [1, 2, 3];

Example 4: typing arrays

// Arrays are variables containing multiple pieces of data.

myArray = ["value1", 2, 3, "insert fourth value here"];

// To retrieve data, you reference them via index numbers.
// KEEP IN MIND that when referencing array values, index numbers
// start at 1, not zero.

myArray[0] = "value1";
myArray[1] = 2;
myArray[3] = "insert fourth value here";

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