update Array with ES6 - findIndex - useMutation - update local state instead of cache

const newAccount = { ...data.data.assignRole }

        const newAccounts = [...accounts]

        const foundIndex = newAccounts.findIndex(x => x.id === id)
        newAccounts[foundIndex] = newAccount

        setAccounts(newAccounts)

update local state instead of update the cache

const [assignRole] = useMutation(MUTATION_ASSIGN_ROLE)

const handleSave = (id: string, role: string) => {
    const assignRoleInput = { id, role }

    assignRole({
      variables: { assignRoleInput },
    })
      .then((data: any) => {
        const newAccount = { ...data.data.assignRole }
        const newAccounts = [...accounts]

        const foundIndex = newAccounts.findIndex(x => x.id === id)
        newAccounts[foundIndex] = newAccount

        setAccounts(newAccounts)
      })
      .catch(error => console.log(error.message))

    setOpenRolesDialog(false)
  }

Comments

for loop in javascript - promise - .eslintrc for "for of"

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Apollo client - cache APIs - auto update cache - erase cache - reactive variables - deletion - addition

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window.URL.createObjectURL is not (yet) available in jest-dom - testing scenario

Since window.URL.createObjectURL is not (yet) available in jest-dom, you need to provide a mock implementation for it. Don't forget to reset the mock implementation after each test. describe ( "your test suite" , () => { window . URL . createObjectURL = jest . fn (); afterEach (() => { window . URL . createObjectURL . mockReset (); }); it ( "your test case" , () => { expect ( true ). toBeTruthy (); }); });

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