Struggling to filter an Array within an Array based on dates falling between a specific date range

Question

Struggling to filter an Array within an Array based on dates falling between a specific date range

Currently, I am using a filtering method that is working perfectly, but I am facing an issue where I lose my original Array when there are no dates between the specified range (as expected). Is there a way to prevent this data loss?

The reason I need to retain my Array is that I want to filter it without having to reload when a new date is provided by the user. However, this is challenging when the Array becomes empty.

Below is the function I am using:

filterByDate(d) {
  this.orders = this.orders.filter(
    (element) =>
      element.order.orderdate >= d[0] &&
      element.order.orderdate <= d[1]
  );
},

In this function, d[0] represents fromDate and d[1] represents toDate. Your assistance is appreciated. Thanks.

javascript arrays vue.js vuejs2 vue-component

Answer 1

Answer №1

As per the feedback provided in the problem's comments section:

It was highlighted that the filter() method does not alter the original array; instead, it generates a new array.
```
this.orders = this.orders.filter()
```
will result in the loss of the original array. Therefore, it is recommended to store it in a separate variable beforehand. (For instance, this.originalOrders)
Subsequently, this.originalOrders can be utilized for filtering purposes.

filterByDate(d) {
  this.orders = this.originalOrders.filter(
    (element) =>
      element.order.orderdate >= d[0] && 
      element.order.orderdate <= d[1]
  );
},

Thank you!

Answer 2

As per the feedback provided in the problem's comments section:

It was highlighted that the filter() method does not alter the original array; instead, it generates a new array.
```
this.orders = this.orders.filter()
```
will result in the loss of the original array. Therefore, it is recommended to store it in a separate variable beforehand. (For instance, this.originalOrders)
Subsequently, this.originalOrders can be utilized for filtering purposes.

filterByDate(d) {
  this.orders = this.originalOrders.filter(
    (element) =>
      element.order.orderdate >= d[0] && 
      element.order.orderdate <= d[1]
  );
},

Thank you!

Struggling to filter an Array within an Array based on dates falling between a specific date range

Answer №1

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