Array order changed after multiple array.sort

Question

I have a code to sort array

const timeSorted = wheater.list.sort((z,x)=>
{
    return z.dt- x.dt
})
console.log(timeSorted)

Output that i get is sorted
but if i add another sort like this

const timeSorted = wheater.list.sort((z,x)=>
{
    return z.dt- x.dt
})
const tempSorted = wheater.list.sort((a,b)=>
{
    return a.main.temp - b.main.temp
})
console.log(timeSorted)

const timeSorted become tempSorted

How can i fix that?

More: minimal reproducible example and How do I ask a good question? — T.J. Crowder
– T.J. Crowder, Commented Dec 18, 2017 at 12:10

Adelin · Accepted Answer · 2017-12-18 12:09:01Z

4

The array is sorted in place.

In order to not have it changed, you need to create a copy of the previous array using oldArray.slice().

const tempSorted = wheater.list.slice().sort((a,b)=>
{
    return a.main.temp - b.main.temp
})

answered Dec 18, 2017 at 12:09

Adelin

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