TS2515TS2515 — Non-Abstract Class Does Not Implement Abstract Member
A non-abstract class that extends an abstract class does not implement all abstract members.
TS2363The right operand of an arithmetic expression must be a number or bigint type.
You are using an arithmetic operator where the right operand is not a numeric type. The right side of the expression does not evaluate to a number or bigint.
Convert the right operand to a number using Number() or parseInt(). Ensure the variable is typed as number. Use a type guard to narrow union types to number.
TS2515A non-abstract class that extends an abstract class does not implement all abstract members.
TS4058The return type of a function cannot be named without importing a type from another module.
TS2347Type arguments were provided to a function that is not generic.
TS2564A class property is not initialized in the constructor and has no default value.
TS2589A recursive type reaches TypeScript's maximum instantiation depth.
TS1192The module you are importing does not have a default export.