CODEWITHSUNDEEP
typescript
Gill
Gill

Reputation: 21

Error: Argument of type 'string | undefined' is not assignable to parameter of type 'string'

I am having this error: Argument of type 'string | undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. TS2345

if (menu.authenticated && menu.canView?.includes(profile?.accountType)) {
    |                                              ^**Error is here**
123 |            return loggedInUser && <MenuItem key={menu.resource} {...menu} />;
124 |       } else {
125 |         return !loggedInUser && <MenuItem key={menu.resource} {...menu} />;

Upvotes: 0

Views: 275

Answers (1)

jabaa
jabaa

Reputation: 6838

The argument to menu.canView?.includes has to be of type string, but profile?.accountType is of type string | undefined.

You can fix the condition with

if (menu.authenticated && profile && menu.canView?.includes(profile.accountType)) {

Upvotes: 1

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