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JavaScript JavaScript Numbers The Math Object JavaScript Numbers Review

Posted by Rafail Mavrogordatos
Rafail Mavrogordatos
5,324 Points

The correct answer should be the parse function?

I think in this review the answers are not clear anyone help me change my mind please?

on the string to number question its says the unary plus, the math.round, the typeof or nan property. Thanks

John Johnson
John Johnson
11,789 Points

It is very vocabulary specific. "Unary plus" is the name of the operator that converts a string to a number via:

const numString = '6';
const numInt = +numString;

numInt stores the integer 6.

However, without the vocabulary, you can get this one by process of elimination.

  • the Math.round() method will round a number to the nearest integer.
  • the typeof operator will return the data type of the object you pass, but will not do any conversion.
  • the NaN property, well... properties can't convert data types

1 Answer

Rafail Mavrogordatos
Rafail Mavrogordatos
5,324 Points
Rafail Mavrogordatos
Rafail Mavrogordatos
5,324 Points

On the quiz there is no option for that.

Rafail Mavrogordatos
Rafail Mavrogordatos
5,324 Points

https://prnt.sc/urk68d

John Johnson
John Johnson
11,789 Points

When I looked at that quiz, one of the answers is "The unary plus (+)"

The example I gave above is what the unary plus looks like in the code.