- 1: 20, 0 - 2: 1010, 0 - 3: 1010, 10-10 - 4: NaN, NaN

##### Answer: 2 The concatenation operator(+) is applicable for both number and string types. So if any operand is string type then both operands concatenated as strings. Whereas subtract(-) operator tries to convert the operands as number type.

JS Coding Questions

#17🎯 Exercise💻 Code

JavaScript Coding Exercise 17

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javascript

1console.log(10 + "10");
2
3console.log(10 - "10");

Choose the correct output:

20, 0

1010, 0

1010, 10-10

NaN, NaN

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