Tips on sorting through and displaying specific data for editing within an Angular framework

Question

Tips on sorting through and displaying specific data for editing within an Angular framework

const arr = [
 'code1',
 'code2',
 'code3',
 'code4',
 'code5'
];


  const data = [ 
{
device: 'code1'
}, {
device: 'code2'
} ];

  const codeList = data.map((x: any) => x.device);

 const updatedList = arr.filter((x: any) => codeList.indexOf(x) < 0);

There are two existing data objects for device codes, code1 and code2.

My goal is to make an edit on my side.

For example, I have a list of device codes from code1 to code 5.

Then, I have two data objects, with code1 and code 2 as the device codes.

When I attempt to edit the data object with code1,

The list should display only code1, and code2 should not be displayed.

It should look like this after editing code1:

[
'code1',
'code3',
'code4',
'code5'
]

javascript angular typescript

Answer 1

Answer №1

Include a dynamic string to indicate the current item being edited. Additionally, implement exception handling to raise an error if the item being edited is not valid code.

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})

export class AppComponent implements OnInit  {
  name = 'Angular';
  public currentEdit: string = 'code1';

  ngOnInit() {
    const arr = [
      'code1',
      'code2',
      'code3',
      'code4',
      'code5'
    ];

const data = [ 
  {
  device: 'code1'
  }, 
  {
  device: 'code2'
  } 
];

const code = data.map((x: any) => x.device);

const sample = arr.filter((x: any) => code.indexOf(x) < 0 || x === this.currentEdit);
console.log(sample);
  }
}

Answer 2

Include a dynamic string to indicate the current item being edited. Additionally, implement exception handling to raise an error if the item being edited is not valid code.

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})

export class AppComponent implements OnInit  {
  name = 'Angular';
  public currentEdit: string = 'code1';

  ngOnInit() {
    const arr = [
      'code1',
      'code2',
      'code3',
      'code4',
      'code5'
    ];

const data = [ 
  {
  device: 'code1'
  }, 
  {
  device: 'code2'
  } 
];

const code = data.map((x: any) => x.device);

const sample = arr.filter((x: any) => code.indexOf(x) < 0 || x === this.currentEdit);
console.log(sample);
  }
}

Answer 3

Answer №2

when it comes to selecting the specific item for editing, why not utilize that information to filter out the array? import { Component, OnInit } from '@angular/core'; `

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent implements OnInit  {
  name = 'Angular';

  ngOnInit() {
    const arr = [
      'code1',
      'code2',
      'code3',
      'code4',
      'code5'
    ];


    const data = [ 
      {
      device: 'code1'
      }, 
      {
      device: 'code2'
      } 
    ];
    const toBeEdited = "code1";
    let code = data.map((x: any) => x.device);
    code = code.filter((data)=>(data!=toBeEdited))[0];
    const sample = arr.filter((x: any) => code.indexOf(x) < 0);
    console.log(sample);
  }
}

`

Answer 4

when it comes to selecting the specific item for editing, why not utilize that information to filter out the array? import { Component, OnInit } from '@angular/core'; `

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent implements OnInit  {
  name = 'Angular';

  ngOnInit() {
    const arr = [
      'code1',
      'code2',
      'code3',
      'code4',
      'code5'
    ];


    const data = [ 
      {
      device: 'code1'
      }, 
      {
      device: 'code2'
      } 
    ];
    const toBeEdited = "code1";
    let code = data.map((x: any) => x.device);
    code = code.filter((data)=>(data!=toBeEdited))[0];
    const sample = arr.filter((x: any) => code.indexOf(x) < 0);
    console.log(sample);
  }
}

`

Tips on sorting through and displaying specific data for editing within an Angular framework

Answer №1

Answer №2

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