filtering out data by LINQ syntax in angular request; error: Character literal must contain...

I have such LINQ filter for my request in order to get only part of bigger dataset.

const coreFilter = `permissions != null && permissions.Any(p => p.permissionLevel != 'Hide' && p.areaIId == ${currentCustomer})`;


But now it works properly only when Im asking only for one parameter

p.areaIId == ${currentCustomer})


If i want to filter it by two parameters I get

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