What is the output of: console.log(+’3′, +true, +null, +undefined)?

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JavaScript Developer — Medium

What is the output of: console.log(+’3′, +true, +null, +undefined)?

Key points

  • The unary plus operator converts non-number values to numbers
  • '3' is converted to 3, true is converted to 1, null is converted to 0
  • Undefined cannot be converted to a number, resulting in NaN

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