Guide to building a JavaScript array and storing data from a separate array into the newly created array in JavaScript

Question

Guide to building a JavaScript array and storing data from a separate array into the newly created array in JavaScript

Can you help me create a JavaScript array and save another array of data to be part of the newly created array in JavaScript? I attempted it using the code below.

Code:

var vvv=this.new_products.length-this.quote.lines.length;
      let mmm={};
      if(vvv > 0){
        for(var i = 0; i <= vvv-1; i++){
          mmm ={...this.new_products[this.quote.lines.length+i]};
        }
      }
      console.log(mmm);

Example:

this.new_products -> 
    0: {…}
    1: {…}
    2: {…}
    3: {…}
this.quote.lines ->
    0: {…}
    1: {…}

The desired output should be ->

mmm->
    0: {…} (this.new_products[2])
    1: {…} (this.new_products[3])

Current output->

{product_code: "khdbdvdjlhc de", description: "sscs", note: "csccc", pinned: false, third_party: 0, …}

Unfortunately, my current code is not working as expected. Any assistance on how to resolve this issue would be highly appreciated.

javascript vue.js

Answer 1

Answer №1

From my understanding, it seems that you are looking to retrieve the remaining items:

 let remainingItems = [];
 for(let j = 0; j <= totalItems - 1; j++){
    remainingItems.push({...this.all_products[this.selected_items.length+j]});
 }

Answer 2

From my understanding, it seems that you are looking to retrieve the remaining items:

 let remainingItems = [];
 for(let j = 0; j <= totalItems - 1; j++){
    remainingItems.push({...this.all_products[this.selected_items.length+j]});
 }

Answer 3

Answer №2

To create a copy with the same level of nesting, you can use the spread operator as shown below:

let list = ['item1', 'item2'];

let newList = [...list];

If you require a deep copy, an effective approach is to utilize lodash's cloneDeep() method like so:

import _ from 'lodash';

let list = ['item1', 'item2'];

let newList = _.cloneDeep(list);

Answer 4

To create a copy with the same level of nesting, you can use the spread operator as shown below:

let list = ['item1', 'item2'];

let newList = [...list];

If you require a deep copy, an effective approach is to utilize lodash's cloneDeep() method like so:

import _ from 'lodash';

let list = ['item1', 'item2'];

let newList = _.cloneDeep(list);

Guide to building a JavaScript array and storing data from a separate array into the newly created array in JavaScript

Answer №1

Answer №2

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