# TS2365: Operator '…' cannot be applied to types '…' and '…'.

> A binary operator is used on two types it doesn't work with, like `+` on a number and an object, or `<` on a number and a string.

## What it means

Operators such as `+`, `<`, `>`, `<=` and `>=` accept only some combinations of operand
types. The message names the operator and both types.

## Example

```ts
const a = 1;
const b = { value: 2 };

export const c = a + b;
```

## How to fix

- Use the property you meant (`a + b.value`), or convert the operands so both are numbers
  (or both strings).

Source: https://ts-r.dev/errors/TS2365/