SolidJS•7mo ago

Adding new element to an array before the last element inside solid store

const [tabStore, setTabStore] = createStore<{ contents: TabContent[] }>({
  contents: [
    {
      id: 'original',
      button: (
        <>
          Original <Icon namespace="Globe" {...iconProps} />
        </>
      )
    },
    {
      id: 'new',
      button: (
        <>
          <Icon namespace="Add" {...iconProps} /> New Effect
        </>
      )
    }
  ]
})


  const addNewTab = (newTab: TabContent) => {
    setTabStore('contents', tabs => [
      ...tabs.slice(0, tabs.length - 1),
      newTab,
      tabs[tabs.length - 1]
    ])
  }

const [tabStore, setTabStore] = createStore<{ contents: TabContent[] }>({
  contents: [
    {
      id: 'original',
      button: (
        <>
          Original <Icon namespace="Globe" {...iconProps} />
        </>
      )
    },
    {
      id: 'new',
      button: (
        <>
          <Icon namespace="Add" {...iconProps} /> New Effect
        </>
      )
    }
  ]
})


  const addNewTab = (newTab: TabContent) => {
    setTabStore('contents', tabs => [
      ...tabs.slice(0, tabs.length - 1),
      newTab,
      tabs[tabs.length - 1]
    ])
  }

Is there other way to update like this. I am thinking of if I can add new element using index like splice(index, 1, newElement) inside solidStore. I am also trying "path update", but it doesn't match my scenario. Thanks for your help!

1 Reply

bigmistqke•7mo ago

U can use produce, see https://docs.solidjs.com/reference/store-utilities/produce#produce Its callback returns a proxy on which you can do mutations, and under the hood it will transform those mutations into immutable operations.

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Adding new element to an array before the last element inside solid store