Click on the button to sort Angular data

Question

Click on the button to sort Angular data

Greetings! I am a newcomer trying to grasp the concepts of angularjs/typescript.

I have compiled an array of fruits, displayed in an unordered list. My goal is to arrange them in descending order and implement a reverse search function to display the items in alphabetic order upon clicking a button. However, I am unsure of how the function should be implemented... Any assistance would be greatly appreciated!

Here is the snippet of HTML code:

export class AppComponent {
  fruits: string[] = ["Apple", "Banana", "Orange", "Peach", "Pear"];
}

<ul>
  <li *ngFor="let fruits of fruits">{{fruits}}
  </li>
</ul>

<button ng-click="send()">Sort </button>

javascript angular typescript

Answer 1

Answer №1

Where are all the fruits hiding?

By the way:

export class AppComponent {
  cities: string[] = [ "Pear","Banana", "Apple", "Orange", "Peach" ];
}

Alright, now let's display them:

  <ul>
      <li *ngFor="let city of cities">{{city}}
      </li>
    </ul>

    <button (click)="send()">Sort </button>

And here is the sorting function to use:

send(){
    this.cities = this.cities.sort(); 
}

Answer 2

Where are all the fruits hiding?

By the way:

export class AppComponent {
  cities: string[] = [ "Pear","Banana", "Apple", "Orange", "Peach" ];
}

Alright, now let's display them:

  <ul>
      <li *ngFor="let city of cities">{{city}}
      </li>
    </ul>

    <button (click)="send()">Sort </button>

And here is the sorting function to use:

send(){
    this.cities = this.cities.sort(); 
}

Answer 3

Answer №2

One way to achieve this is by utilizing the sort() function.

 sortFruits(){
    this.fruits = this.fruits.sort((n1,n2) => {
    if (n1 < n2) {
        return 1;
    }

    if (n1 > n2) {
        return -1;
    }

    return 0;
});
  }

You can view your solution here on stackBlitz.

Answer 4

One way to achieve this is by utilizing the sort() function.

 sortFruits(){
    this.fruits = this.fruits.sort((n1,n2) => {
    if (n1 < n2) {
        return 1;
    }

    if (n1 > n2) {
        return -1;
    }

    return 0;
});
  }

You can view your solution here on stackBlitz.

Answer 5

Answer №3

Revise the sort() method to arrange strings in alphabetical order.

 send(){
     this.fruits.sort((n1,n2) => {
  return n1.localeCompare(n2)  
});

For a demonstration, refer to the example on StackBlitz: stackblitz link

To switch between sorting orders, define a variable, check its value, and sort accordingly.

send(){
    this.order = !this.order;
     this.fruits.sort((n1,n2) => {       
      return (this.order)? n1.localeCompare(n2):n2.localeCompare(n1);
    });
  }

Answer 6

Revise the sort() method to arrange strings in alphabetical order.

 send(){
     this.fruits.sort((n1,n2) => {
  return n1.localeCompare(n2)  
});

For a demonstration, refer to the example on StackBlitz: stackblitz link

To switch between sorting orders, define a variable, check its value, and sort accordingly.

send(){
    this.order = !this.order;
     this.fruits.sort((n1,n2) => {       
      return (this.order)? n1.localeCompare(n2):n2.localeCompare(n1);
    });
  }

Click on the button to sort Angular data

Answer №1

Answer №2

Answer №3

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